Rewterz Threat Alert – SystemBC Malware – Active IOCs

Severity

Medium

Analysis Summary

SystemBC malware is recently being distributed through Emotet and SmokeLoader. The malware has been used in multiple ransomware attacks over the past few years. SystemBC acts as a Proxy Bot and if an infected system has SystemBC on it, then the system can be used as a passage to access the victim’s address. The earlier versions of the malware were distributed using Fallout exploit kit and RIG exploit kit. The 2020 version was used with Egregor or Ryuk-associated ransomware attacks. DarkSide ransomware group also used the malware. SystemBC is mainly used as a proxy and to download and install additional payloads. It might be installed in internal networks to perform the role of a proxy or download and execute malicious payloads.

Impact

• Credential Theft
• Information Theft
• Financial Loss

Indicators of Compromise

IP

• 146[.]70[.]101[.]95

MD5

• cd64b19f5bfb0e2f356b66d8c3925245
• a619132e7c61432841de11c8116c4644
• 0f6f452ee406b3360e39819aac42a200

SHA-256

• af8890c3a9430938483b741df88f6806b25f6723713f978aaefb4a8989d6aca9
• a98b0087e10d01411982e9539ff9e6185242c8c7af6229895bb844f8aaf9f73e
• 76bd9bebdadfeda8974424b76d669a8f22b4a1178b1a9caae0d2c5a60c9db5e9

SHA-1

• 1aadd24d193dd1bf2cf5e3dff9c0125eebce08bf
• 49d002da4c23840cd4d55918946980645b384fdc
• e62b9163c2eddbc8bdf262faf11ac1f5f1e25683

Remediation

• Block all threat indicators at your respective controls.
• Search for Indicators of compromise (IOCs) in your environment utilizing your respective security controls.
• Patch and upgrade any platforms and software timely and make it into a standard security policy.
• Prioritize patching known exploited vulnerabilities and zero-days. Enable antivirus and anti-malware software and update signature definitions in a timely manner. Using multi-layered protection is necessary to secure vulnerable assets.
• Do not open emails and attachments from unknown or suspicious sources.