Rewterz Threat Alert – APT-C-23 or AridViper Threat Group – Active IOCs

Severity

High

Analysis Summary

APT-C-23 (aka AridViper) is an Arabic-speaking Advanced Persistent Threat group working for Hamas. The threat group has been previously known to target Middle-Eastern countries but has been recently observed targeting Israeli officials and individuals. Their espionage campaign aims to steal credentials and sensitive information from the victim’s PC and mobile devices. Their most active targets are Israeli individuals working for the military, emergency services, and any law enforcement agencies. Their primary infection method is social engineering, through which they deliver trojanized messages via facebook or other social media applications. The group has been using an upgraded malware called “Barb(ie) Downloader” and “BarbWire Backdoor” and an android implant named VolatileVenom.

From Cybereason

Impact

• Information Theft and Espionage

Indicators of Compromise

Filename

• WMIHosts[.]exe

MD5

• 3f3bbcf8fd90bdcdcdc5494314ed4225
• 08a1ee50adb72b421189362d74a190a4

SHA-256

• ebe09a6ef73a572f7a19d2e1eccd8f5d1895ae2730e67a060d008a2703ab3ec2
• c4fdbfd6608748d7f675a83f392cd923e86a6d491395a611a3d651c3385708b8

SHA-1

• ff1c877db4d0b6a37f4ba5d7b4bd4b3b980eddef
• 4dcdb7095da34b3cef73ad721d27002c5f65f47b

Remediation

• Block all threat indicators at your respective controls.
• Search for IOCs in your environment.
• Always be suspicious about emails sent by unknown senders.
• Never click on links/ attachments sent by unknown senders.