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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.
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September 18, 2023
Severity Medium Analysis Summary Lumma is an information stealer that is sold as a Malware-as-a-Service (MaaS) on Russian-speaking underground forums and Telegram. Lumma is an information […]September 18, 2023Severity Medium Analysis Summary CVE-2023-4948 CVSS:4.3 WooCommerce CVR Payment Gateway Plugin for WordPress could allow a remote attacker to bypass security restrictions, caused by missing capability […]September 18, 2023Severity High Analysis Summary Microsoft has stated that a ransomware group working with an initial access broker has recently started using Microsoft Teams for their phishing […]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
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
September 18, 2023Severity Medium Analysis Summary Lumma is an information stealer that is sold as a Malware-as-a-Service (MaaS) on Russian-speaking underground forums and Telegram. Lumma is an information […]September 18, 2023Severity Medium Analysis Summary CVE-2023-4948 CVSS:4.3 WooCommerce CVR Payment Gateway Plugin for WordPress could allow a remote attacker to bypass security restrictions, caused by missing capability […]September 18, 2023Severity High Analysis Summary Microsoft has stated that a ransomware group working with an initial access broker has recently started using Microsoft Teams for their phishing […]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 – Increased Office 365 Phishing Campaigns Attacks Related to COVID-19
June 23, 2020Rewterz Threat Advisory – CVE-2020-9665 – Adobe Magento Commerce and Open Source cross-site scripting
June 24, 2020
Severity
Medium
Analysis Summary
Emerging during the pandemic, a new threat group is targeting Taiwanese users with COVID-19 themed phishing campaigns. The use of COVID-19 themes as a lure has been a consistent tactic in their campaigns since their appearance. The most recent campaign indicates a clear intent to victimize users in Taiwan based on the content and language. The email claims that the attachment contains information regarding making an appointment for testing at the Taiwan CDC. The researchers note the email was high quality and indicated sophisticated targeting, unlike most phishing emails which contain grammatical mistakes or appear to be fake. Attached is an ISO containing a packed .NET executable identified as RoboSki. RoboSki, upon execution, runs a DLL file in memory that extracts shell code from an embedded PNG image. The shell code, in turn, drops the next payload in memory, the ReZer0 malware. This kicks off a chain of payload executions in memory leading to the final payload, which in this campaign is the Nanocore RAT.
Impact
- Credential theft
- Exposure of sensitive data
Indicators of Compromise
MD5
- 0f3feea28e99381970d9f50a49d58a74
- 4903d9ffb602801ed30ca75275773b4a
- e468ae6521717f48fb0469c0d34c7b84
- 0362f695e45afe0c5887851ea87d46c7
SHA-256
- 080ff06496d8b6b5e6307059e378ed7052e381a6f130d89385c778edf32ae996
- 9fbb3df3c9b58626be3f9e66e8b4abd811a8069839374ade15cc405eb3b4d816
- 0aa87ed22e193e1c6aa9944cf1b9e88ec4ae6a5b3f975e3fb72c0f5b06b864f2
- 51B0165FBA9CF8E0B7BFEBDC33E083ECC44D37CDBB15B5159B88B71E52B0255B
- d5d3cf535b3313077956d5708225cf8029b039ed0652ee670ce25ea80d2b00c0
SHA1
- fcd655242f18ec6adc00d57424e62acee797d38d
- 1e92ac2ff286e30bd2b7256ab2ac5b3177201a02
- 229dc04d91d3756a9ba7d59125cd32f748cc92a9
- 3aea3327ee6f8ce0d28f19cba9a09d16c3f694d2
Remediation
- Block all threat indicators at your respective controls.
- Always be suspicious about emails sent by unknown senders.
- Never click on the links/attachments sent by unknown senders.