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, often obtained from a third-party source. Smoke Loader can load its modules allowing it to do several activities without additional components. To date, the supplier of Smokeloader, who goes by the alias SmokeLdr, still delivers 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
• Unauthorized Access

Indicators of Compromise

SHA1

• 066efb80a965c4ebbe276ffd7a6ac4fa61c1ebe7
• 79024e1bb20fa1d46b7b135c230010c2720d57e6
• b26485ed3ee5990d1c8363e743d8e0903e2b3433
• 7d254a018fec039c84a080549f4cdba6f0f1d8ef
• c3e3c536032644ccd9adf76f3da506a6f1dd17bc
• bf656e6f8310e25b44311b081cbd91eee8aa39be
• 2a001ba9fc5c56cecdf25f34f3f8558e3fdedc3f
• 26c2dcbe17fb89224f017a5f160684858db22d24
• 957cc40f099525b217046b2aecce1562d2293827

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.