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March 25, 2023Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]March 25, 2023Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]March 24, 2023Severity Medium Analysis Summary CVE-2023-20113 Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]Threat Insights
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.
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Platform
Managed Security Services
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.
Resources
March 25, 2023Severity Medium Analysis Summary GandCrab – a ransomware-as-a-service variant – was discovered in early 2018. At least five versions of GandCrab have been created since its […]March 25, 2023Severity Medium Analysis Summary NjRat is a Remote Access Trojan, which is found leveraging Pastebin to deliver a second-stage payload after initial infection. There are multiple […]March 24, 2023Severity Medium Analysis Summary CVE-2023-20113 Cisco SD-WAN vManage Software is vulnerable to cross-site request forgery, caused by improper validation of user-supplied input. By persuading an authenticated […]Threat Insights
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.
Connect with Us
Rewterz Threat Alert – New Malware Abusing Google and Facebook Services
December 14, 2020Rewterz Threat Alert – Dark Caracal Targets Multiple Sectors with Bandook Malware
December 15, 2020
Severity
Medium
Analysis Summary
A new AgentTesla campaign is seen targeting victims with malspam. AgentTesla is known for stealing data from different applications on victim machines, such as browsers, FTP clients, and file downloaders. Agent Tesla collects personal information from the victim’s machine, steals data from the victim’s clipboard, can log keystrokes, capture screenshots and access the victim’s webcam. It can kill running analysis processes and AVsoftware. The spyware also performs basic actions to check whether it is running on a virtual machine or in debug mode, in an attempt to hide its capabilities and actions from researchers. All the data it obtains is sent in encrypted form via SMTP protocol.
This current Agent Tesla campaign seems to be using email attachments with the common phishing themes of invoice, quotation request, new order, shipping advice, etc. These malicious attachments when downloaded and executed will infect the target system with Agent Tesla.
Impact
- Credential Theft
- Data Exfiltration
- Information Disclosure
- Detection Evasion
Indicators of Compromise
Filename
- specs datasheet[.]exe
- REQUEST23341234[.]exe
MD5
- f8674c0b7be761d12ace57039b6688fd
- f3511f0df79889c36525c17db27c51b4
- 48c9149831946bc0dcec0a6a66d159b1
- 5cf5ee802d8c13debe04c707489da0b8
- 3ddf9b5d91a3d979e6477e789ece05b7
- 666cb0fddb4cf8633c56a4ccaf69500b
- 666cb0fddb4cf8633c56a4ccaf69500b
SHA-256
- 4901e545f909725ea2329a68aab1875a244404f379a3a66bbc289fc032dab053
- 9827198753b9ab546a2789690c63af319a81b61e203486abaee027b304b186ad
- cba307ef1a3a55b09513b978a8e592ff2229a30de65b799e081fb1dbea836256
- 50c08700245c10a4f452c302e09777a88e8d88fac7fa5395756c2b9559f76357
- a944ba68cf53d0b13e6ce99e2e90db74cba352c36593aeeef21d001ad98f3d6b
- 8b26cdcf75986872f5d68ea2e7d46eec7b7e085ce0473b1ec8a4292beaaa276f
- 108885ad12de3e0c6d7e712eb48bc8c4571b1be01ca4a37f9857f61d7a6d591a
SHA1
- d9b8d52c23d59ffe04e6df665c47fa639c682725
- 116e9800385efcf9b13169b7922fdd606f0e3df8
- fb56eb1fa9ac5fd4b54065604fd17845e8ce74a6
- 5b14d0c4467ee7022661c35966a2620dfc76152a
- f31b1b56f7b981c4698bb74731eec7f9a1273fde
- fdcf33284d5da54a4f7cf918f2ae7b1b2898ced6
- fdcf33284d5da54a4f7cf918f2ae7b1b2898ced6
Remediation
- Block the threat indicators at their respective controls.
- Do not download files attached in untrusted emails.