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March 17, 2023Severity High Analysis Summary Chaos is a customizable ransomware builder that emerged on June 9 2021 (in underground forums) by falsely marketing itself as the .NET […]March 17, 2023Severity High Analysis Summary CVE-2023-26361 CVSS:4.9 Adobe ColdFusion could allow a remote authenticated attacker to traverse directories on the system. An attacker could send a specially […]March 17, 2023Severity Medium Analysis Summary Ursnif banking trojan also known as Gozi and Dreambot has been around for more than 10 years. It gained popularity in 2015 […]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 17, 2023Severity High Analysis Summary Chaos is a customizable ransomware builder that emerged on June 9 2021 (in underground forums) by falsely marketing itself as the .NET […]March 17, 2023Severity High Analysis Summary CVE-2023-26361 CVSS:4.9 Adobe ColdFusion could allow a remote authenticated attacker to traverse directories on the system. An attacker could send a specially […]March 17, 2023Severity Medium Analysis Summary Ursnif banking trojan also known as Gozi and Dreambot has been around for more than 10 years. It gained popularity in 2015 […]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 Advisory – CVE-2019-1040 – Windows NTLM Tampering Vulnerability
June 18, 2019Rewterz Threat Advisory – CVE 2019-11707 – Mozilla Firefox Vulnerability Exploited In the wild
June 19, 2019
Severity
Medium
Analysis Summary
TA505 threat group campaign that masquerades as email from “National Tax Inspectorate for interrogation”.
The initial point of infection sources from an email with the subject “National Tax Code”. Example email:
This spreadsheet contains malicious macros that, once enabled, download and execute the first stage malware “wiskkk.exe”. This executable downloads and executes winserv.exe, the final stage malware, also known as RMS (Remote Manipulator System). RMS is a known remote administration tool by TektonIT and allows complete access to the target system.
Impact
Unauthorized system access
Indicators of Compromise
IP(s) / Hostname(s)
217[.]12[.]201[.]159
Malware Hash (MD5/SHA1/SH256)
- 107DE953B02FB0DD7E31A0B618C3748F2C285070577EF1ABAABEB30AB3153424
- 4423A6B64B8C483B802065A0D14CB21BBFCD3E2D
- 9FDE87763E721EA2EBDAE8AA4C3F6B53
- FD701894E7EC8D8319BC9B32BBA5892B11BDF608C3D04C2F18EFF83419EB6DF0
- 5310C2397BA4C783F7EE9724711A6DA9B5C603B5C9781FFF3407B46725E338B3
- 609B0A416F9B16A6DF9B967DC32CD739402AF31566E019A8FB8ABDF3CB573E30
- 2116152E47309F8A15DC03A417CEF57F
- 0C19E196ACA45CF5CB7CB251498BACC4
- D0FCD4DAEE0BE452884C7FB926A7164F
- 51907D72DFF06693CE403F5A0205126F
- e900a8eafd9449439ad5d8f2032758a5
Email Subject
National Tax Code
Filename
- Documentation-00589019.zip
- document_june2019.zip
- Privat_06.2019.zip
- Personal-0059062019.zip
Remediation
- Block all threat indicators at your respective controls
- Always be suspicious about emails sent by unknown senders
- Never click on the link attachments sent by unknown senders