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    Rewterz Threat Alert – Haken and Joker Malware found in Apps on Google Play

    Managed Security Services

    • Managed Security Monitoring
    • Remote SOC
    • Onsite SOC
    • Hybrid SOC

    Managed Penetration Testing

    Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.

  • Services

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    • Red Team Assessment
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    September 25, 2023
    Rewterz
    September 25, 2023
    Rewterz Threat Advisory – CVE-2023-42753 – Linux Kernel Vulnerability
    Severity High Analysis Summary CVE-2023-42753 Linux Kernel could allow a local authenticated attacker to execute arbitrary code on the system, caused by an integer underflow due […]
    September 25, 2023
    Rewterz
    September 25, 2023
    Rewterz Threat Alert – AsyncRAT – Active IOCs
    Severity Medium Analysis Summary AsyncRAT is an open-source tool designed for remote monitoring via encrypted connections. However, it could be utilized by threat actors as it […]
    September 22, 2023
    Rewterz
    September 22, 2023
    Rewterz Threat Alert – An Emerging Ducktail Infostealer – Active IOCs
    Severity High Analysis Summary Ducktail Malware is a malicious program designed by hackers to infiltrate computers and networks globally. Ducktail malware is typically delivered through a […]

    Threat Insights

    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.

    Read More

    play_btn_Smallplay_btn_hover_Small
    leadership

    Our Leadership

    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
    help

    CSR

    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

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Rewterz
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Rewterz Threat Alert – Haken and Joker Malware found in Apps on Google Play

February 24, 2020

Severity

High

Analysis Summary

Clickers, (malware that mimics the user and performs ‘clicks’ on ads), are a rising threat in the mobile industry. 47 new applications that were available on Google Play, and were downloaded more than 78 million times by users were found infected with malware. A similar campaign began its path in Google Play. Haken malware was found in 8 malicious applications, that had over 50,000 downloads, the clicker aims to get a hold of as many devices as possible to generate illegitimate profit.

goog-figure-1.png
goog-figure-2.png

The Haken clicker utilizes native code and injection to Facebook and AdMob libraries while communicating with a remote server to get the configuration.

The first entry point of the Haken clicker is the receiver called ‘BaseReceiver’. This receiver asks for permissions that the backdoored app (in this case, a compass application that actually provides a compass service) does not require to function, for instance,BOOT_COMPLETED which let the backdoored application to run code at device start-up. With the usage of native-code, code injection into Ad-SDKs, and backdoored applications from the official store, Haken has shown clicking capabilities while staying under the radar of Google Play. Even with a relatively low download count of 50,000+, this campaign has shown the ability that malicious actors have to generate revenue from fraudulent advertising campaigns.

The ‘Joker’ malware family, originally discovered in September 2019, is a spyware and premium dialer (subscribes the user to premium services) for Android that was found on Google Play.
In the past few months, Joker keeps reappearing in the Google Play store, We have recently discovered four additional samples of Joker on Google Play, downloaded 130,000+ times. Most of these malicious apps are camera utilities and children’s games. Some of them buy premium subscriptions without notifying the user. 

goog-figure-11.png
goog-figure-12.png
goog-figure-13.png

Impact

  • Device takeover
  • Financial Loss
  • Data theft

Indicators of Compromise

Domain Name

bearclod[.]com

MD5

  • 665e96dda8ec53721592db445dc1dcd8
  • bc5b8f08cde9b115a24087f1bcf85348
  • aa97e49495b495f11b9c252f0988b82c
  • 82ba8021eb1c29eff00aa93d2fed8f43
  • c26f0235e9ca0ba9a1fd98c6f1a6ede7
  • 7b1d1b9c97bfd2bef121c0ee2ea7e6b5
  • 14ce5267be2f687ea2554d5bcafdd919
  • 89747658f9bdb518865a8e7e47da0d83
  • 27ba0e1fd04e30e15ebe9bfd3675339e
  • 6a11ebe7708d8ac15ca16dd35a9077e6
  • 96514423a4d08e2d9aaeb5f04461baff
  • b2d15a9bc0df89e3111f59b4bdfdfa86
  • 3c9369f0a27dc8d087c0f6f87af9d987
  • 435ef0f9b52c8aa3e8cf724c3029feca
  • 13834832ea096b06a701339d8730c9aa
  • 44c0b6761fe0ef294df53d265457e5ce
  • 7a33896dd45ea52ab3f7808ef6e06656
  • f69faaa08be460fface36be62b84b5c1
  • 121d8a08b09fe5755d3df6cf5d6af884
  • ac86bff3edf47313df1cc62e792db97f
  • 3bc5c2818094750ed8de185df0c404e8
  • 45667128c5593d987d2d1020a005194f
  • a8a6dc6f8f6350f070fb3d19f5b766f3
  • 02939b68596873ad1835d1062ee8836a
  • 829a30e7d2f461ce9092ea3d7a0e5742
  • 7e5677a2d49ccc6a2ae78778a2120790
  • a7367cfc54140761b02c1d21eb769935
  • 879516a982ce996f26f9bec7136e8c27
  • 992110f2295f07270c5d77c85491b978
  • 8d7550971c1292e8a3a43bbe293f412c
  • 54628bb8ed75cfd30eea92b20db1fc8a
  • 82df5e392c62bead251f43916d7a833d
  • 75c48a372281fbe2a09f9f6c72fca8d0
  • 100108d372c1b8bc8d3264d3599eaa7e
  • 8249cd76d780ae08e7256a6f8b9cb605
  • d2f467545b34547b07ba48ef3274e37c
  • 4575e1d8a5ec7deb59975ab07fde15e8
  • d626ceea2ad696dc3cc3e81b249bed2e
  • 6f8f9fbd1e74ecc756587332a8c5a33b
  • b68a10302fae99311d114d6029c2f5b9
  • 66be6ab4f4fe7c120383265a9d87dba5
  • 042fe6422bd68fabff3189b855a74600
  • 12f54a33a3d078a4d3a0a45bd41bba21
  • e6ebcbc45b3cace046316f913001e547
  • f3f1f347cf9f7049072db1d5135db905
  • 7bc2e35624001d1316d3859711349f2c

SHA-256

  • a4295a2120fc6b75b6a86a55e8c6b380f0dfede3b9824fe5323e139d3bee6f5c
  • 3217b65698c7c0df08aea5c9e6d56e4634b1cf10ff48352b45719a596ff53cde
  • e09396e0b17a026c9f87cc0481218d386fe7209f858bf448506f59689154d2f7
  • 6c0712bc308ccd7b2c70a03a5899e700eb757a01dcf3fa986354071dd27bd0ef
  • efa4dcdb3daca6b560c4523ff4010b9bea26fefb9cc8745312073c0dc503fd2f
  • 3cc2feb6f8e0eba6d1b0807e1147456e13c109138f1bc346477dee2f0479cc7d
  • e71c1dd9984fecf7bc9ba6d70e83dcb42405048bf51e981b896d110eea3fa441
  • a646aade6787965b3fc71dd3e73b9a15ec65eedcadc8f14cba188425f4079040
  • 5352c8ee2851bd9d741dce065f37c1eaedfe0c8bc042ff6fda7f0e5388767e06
  • 95aeeae8a422e917bc555a8a7a71f35648649d95bdf9c7b46669e8f1059b6cfa
  • 30bf493c79824a255f9b56db74a04e711a59257802f215187faffae9c6c2f8dc
  • 17289264e413d46f873295f22b689d7d44e1d3d11b51f39dab34ddccf50fdda2
  • 2bb0f074514eabd055052d4d8e758f7861823586c99ebef14594b1c60db4c7d7
  • 4a74210e9e716092161037fb154c321e29ed454572bf1523a15903ec6eaaf640
  • 0ce29f5b76b3efca487f81c55f5bb949a4193d1bc6d5cc9d10ebe8552d8230d0
  • 091bacf055050efe52295e4fb79f27a7929ebfd516d7ae999e13f68ecbb8a255
  • 8c49c79479e642fe424c977566f151828650b4d06d6903fbfa381d957e48ce9f
  • 388b9c2c694a24fd686a615be046e33b94134c362b1432eadb5a50f42a758d8e
  • 44102fc646501f1785dcadd591092a81365b86de5c83949c75c380ab8111e4e8
  • 752d32fe5992b7d925d5d87b9066129b052eb8ea360a912c4738c32e6bdae527
  • f4da643b2b9a310fdc1cc7a3cbaee83e106a0d654119fddc608a4b587c5552a3
  • c816e434a425122522d2be72c750a8c7b3b131e30ed81999331173693ecc95e5
  • 53bb04ce6a8d5ae716b30da894760b35f5ce99aab6bcd75081f0e4ac3cd68c49
  • 62d192ff53a851855ac349ee9e6b71c1dee8fb6ed00502ff3bf00b3d367f9f38
  • d3dbff98cc8613aa8403bce35b02640d54744f3606d2f7fe5a461d19cc53ecab
  • 84e3341a4d3c603e7cf3e5b91780a942b997779c1468af820b79a57753a3d5a3
  • 381620b5fc7c3a2d73e0135c6b4ebd91e117882f804a4794f3a583b3b0c19bc5
  • 0b186e5044d640a206379c10a272e8d9b07e0bf0a478e6fc0a017c57e8f4e658
  • d34582afde8da306f12b6da21aa4572d2febce656b4dc12a2d662284fc8623b9
  • 230f66be98f30155934379022cc8656e25917c4fd5c08a36903539ce1bd36f4c
  • 0136e998df49df642c2df7a5ba0da9987e341b6554fa578e935fa15bdf31199f
  • c5ffc91bf3a37fc81feddf15abbca20a2a6e09413bba88092e5f62f301bdc686
  • 7f8f37be97121bc998999eb947b429d46aeba86abce1ac9d4e4ae0c805a5a8e7
  • e811f04491b9a7859602f8fad9165d1df7127696cc03418ffb5c8ca0914c64da
  • 9c713db272ee6cc507863ed73d8017d07bea5f1414d231cf0c9788e6ca4ff769
  • 8d5f1b8d25ba0c297d8c76f40b48032659cb21c1e02e13e98202bc0bdfea0e6a
  • 29353df1956feb64ba42583f734b84996c4b5a507d1192ef415a930b5c6fed02
  • fa93a5998390bc23949ba86e044e72f8ae20829dd220289b375bfaa76f86bd9a
  • 63a93a1bdb58365363e4c709f811f45cef8dde176cc36a5c2eae7d82c940917c
  • a26ce61f3137307ab3456d6312d823bec7a3924d830d8764778803ad48843467
  • cb8864a684fa4d6886d7f0d22297ca898211aaf8e1c60bab83a1ced69d7e0894
  • 320e5c51d4ed75adda1caef64287c885f7eb6ef7aa81f88315f86d6074a34b54
  • 6d029ddd73111fca8bf8caa88ad81c91d3e75968eb70916d25905f6a8d686d2a
  • bce72d9a3c61965522688d6b5f28884f1210dc3ccc22439982257391e6fc36a8
  • a47049094051135631aea2c9954a6bc7e605ff455cd7ef1e0999042b068a841f
  • 08f53bbb959132d4769c4cb7ea6023bae557dd841786643ae3d297e280c2ae08

Source IP

  • 3[.]123[.]204[.]12
  • 13[.]250[.]34[.]16

Remediation

  • Block the threat indicators at their respective controls. 
  • Do not download unnecessary apps even from Google play store. 
  • Do not store financial information like credit card details on Android phones.

Platform

  • Rewterz XDR
  • Rewterz Defense
  • Rewterz Threat Intelligence

Managed Security Services

  • Managed Security Monitoring
  • Remote SOC
  • Onsite SOC
  • Hybrid SOC

Assess

  • Compromise Assessment
  • APT Assessment
  • Penetration Testing
  • Architecture Design & Review
  • Red Team Assessment
  • Purple Team Assessment
  • Social Engineering
  • Source Code Review

Transform

  • SOC Consultancy
  • SOC Maturity Assessment
  • SOC Model Evaluation
  • SOC Gap Analysis
  • SIEM Gap Analysis
  • SIEM Optimization
  • SOC Content Pack

Train

  • Simulated Cyber Attack Exercise
  • Tabletop Exercise
  • Security Awareness and Training

Respond

  • Incident Analysis
  • Incident Response

Threat Insights

  • Threat Advisories
  • Monthly Threat Insights
  • Threat Intelligence Reports

Resources

  • Blog
  • Press Releases

Connect With Us

  • Contact
  • Careers
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