Rewterz Threat Alert – Snake Keylogger’s Malware – Active IOCs
August 19, 2022Rewterz Threat Alert – PatchWork APT Group Targeting Pakistan – Active IOCs
August 19, 2022Rewterz Threat Alert – Snake Keylogger’s Malware – Active IOCs
August 19, 2022Rewterz Threat Alert – PatchWork APT Group Targeting Pakistan – Active IOCs
August 19, 2022Severity
Medium
Analysis Summary
Guloader is currently being distributed via spam email campaigns with archived attachments that contain the malware. The majority of malware downloaded by GuLoader is commodity malware, with AgentTesla, FormBook, and NanoCore being the most predominant. This downloader typically stores its encrypted payloads on Google Drive. It has also downloaded its payloads from Microsoft OneDrive and also from compromised or attacker-controlled websites. By utilizing legitimate file-sharing websites, GuLoader can evade network-based detection, as these services are not generally filtered or inspected in corporate environments. Usually, the downloaded payloads are encrypted with a hard-coded XOR key embedded in the malware, making it difficult for file-sharing service providers to identify the payload as malicious. This time, the GuLoader Shellcode injector is being distributed via a file named “EXTERNAL RFPPAN India Epoxy/PU 2021”. The scope of this campaign so far seems to be global.
Impact
- Malware installation
- detection evation
- Information theft
Indicators of Compromise
MD5
- 5a353a958a9bfa9eaf55b0dfe49ef87e
- 41d0d1fab675c2c7f9ad7d8c1f11ee5f
- d7dfd4b6857d31a51a4558a830c0bc05
SHA-256
- 11af0ebffb58a2491d93bb04932be5a8acd5658a85a0f8e4238874b98f106f09
- 33761ca9879abfa59b8bd0bef99a8e7c3dea6e3835bc54273fa14a6c04d2b9f5
- abfdfd793caa37ebc779d1ee6ed71da77fa3bd2173433bd736baa3dc79dd195b
SHA-1
- 9450eabb7dc9437bed2e59b1b889a1bcc8e71945
- 7091e4320e0491623f04c6ff3f736ae5631c641f
- 78406988b8cdcb4fc9eb4b7eeff1c749c6fad471
Remediation
- Block the threat indicators at their respective controls.
- Search for IOCs in your environment.