Rewterz Threat Alert – SmokeLoader Malware – Active IOCs

Severity

Medium

Analysis Summary

Smoke Loader – a malicious bot application – can be used to load additional malware. Smoke Loader has been spotted in the wild since 2011, carrying a variety of payloads. This malware is mostly used to load additional malicious software, which is often obtained from a third-party source. Smoke Loader can load its modules allowing it to do several activities without the use of additional components. To date, the supplier of Smokeloader, who goes by the alias SmokeLdr, is still active in delivering this malware as a service. It is well-known for using deception and self-defense. This malware can be spread in several ways and is widely linked to criminal activity. To hide its C2 activity, this malware sends queries to popular websites like microsoft.com, bing.com, adobe.com, and others.

Impact

• Information Theft
• Exposure of Sensitive Data

Indicators of Compromise

Filename

• DumpStack[.]log

MD5

• f7602d273950f3c9640aaf2b365f1e76
• 85326ee9659fc5bf82c6d71b74f02684

SHA-256

• cf53b4386f5efb01cd84a8aa13f240b83ce152e8984233fa3ea440f01dcc0131
• ca3c7c4b570751c0dbf9063a23035967dfca4a2c7a8ce6bb2997439257ac6f10
• 6b62b323b45edde69e5ea70eeb2cddcd58afe22d71d6efb27df64dcdbe67f9cd
• 9f63f2746aa850347f9c5b13516d9463df41271cef7a39fc33c775cdaa8ebf1b
• 417cf5930321b1851b3e717b221c824155d5e3601a59cd93dfb03bcddd7a12f6

SHA-1

• f22e0840f91b78bf5033a388b3452f72b887477d
• f2bd6c53e806861256285bb1c0d51312a10267a8

Remediation

• Exercise caution when receiving messages from unknown senders.
• Block all threat indicators at your respective controls.
• Keep your software updated to the latest patches.
• Search for IOCs in your environment.