Analysis
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max time kernel
136s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20220414-en -
resource tags
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submitted
18/07/2022, 10:55
General
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Target
1c3f6fdf457783325a5335780144cf45.exe
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Size
534KB
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MD5
1c3f6fdf457783325a5335780144cf45
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SHA1
89385be28336082cd95cf5bf11dccb2f4b60a9f0
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SHA256
b443a89281aa4bb8d955cb3f2b34208332cb01243602f77a4dc323237e069455
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SHA512
15bdb064e65867e49e41943a95ed03214df8a0a4804b03515947e101be99317f385e9b94516fbcd5bafaaf0deb57a1a3e05f54bf5e042b38c16a1231ab3c7806
Malware Config
Extracted
quasar
2.1.0.0
Office04
aare.linkpc.net:2121
VNM_MUTEX_ms1jmUFok04yY1Luqj
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encryption_key
ShKJoA2iFEqsSE6ieT8z
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
0
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startup_key
Venom Client Startup
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subdirectory
SubDir
Signatures
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Contains code to disable Windows Defender 1 IoCs
A .NET executable tasked with disabling Windows Defender capabilities such as realtime monitoring, blocking at first seen, etc.
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Quasar RAT
Quasar is an open source Remote Access Tool.
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Quasar payload 1 IoCs
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VenomRAT
VenomRAT is a modified version of QuasarRAT with some added features, such as rootkit and stealer capabilites.
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suricata: ET MALWARE Common RAT Connectivity Check Observed
suricata: ET MALWARE Common RAT Connectivity Check Observed
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Suspicious use of AdjustPrivilegeToken 2 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\1c3f6fdf457783325a5335780144cf45.exe"C:\Users\Admin\AppData\Local\Temp\1c3f6fdf457783325a5335780144cf45.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
560KB
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Filesize
8KB