Rewterz Threat Alert – SystemBC Malware – Active IOCs

December 12, 2022

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.