Analysis
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max time kernel
111s -
max time network
31s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
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submitted
23-09-2024 00:54
General
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Target
CSGO_Rebound.exe
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Size
41KB
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MD5
38f74fe64c455198c43d478400b202af
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SHA1
a82b7a81ce5aa1d6d12ccef6a927de9473e94898
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SHA256
d163fe9b92b1f6f44ec58bc05bcbc919f78f9e343d9691f0bb1b8162d3d0087c
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SHA512
2376716f957d2dfa56b63bd484ed90f82815064969a2c8cb0074bde931e467e99fd6f96f71732c194c24350e670d83aaafd317b6afe64e59af057bd89f20ec4d
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SSDEEP
768:PscaIyIq3PJOJTwf4uZSceKWTj5KZKfgm3Eh0T:kc16PQAoceKWT9F7E+T
Malware Config
Extracted
mercurialgrabber
https://discord.com/api/webhooks/1287576977489920101/qn6q-HR5nSw72La9tctjugcKDnTYkEdiUMCxvbCQZK9FPD7CNhkDCwvlhZUWz9oa6ach
Signatures
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Mercurial Grabber Stealer
Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 1 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
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Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Checks SCSI registry key(s) 3 TTPs 1 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Enumerates system info in registry 2 TTPs 4 IoCs
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Suspicious use of AdjustPrivilegeToken 5 IoCs
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Suspicious use of WriteProcessMemory 3 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\CSGO_Rebound.exe"C:\Users\Admin\AppData\Local\Temp\CSGO_Rebound.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Maps connected drives based on registry
- Checks SCSI registry key(s)
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1976 -s 13922⤵
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C:\Windows\explorer.exe"C:\Windows\explorer.exe"1⤵
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x57c1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
4KB
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Filesize
64KB
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Filesize
9.9MB
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Filesize
4KB
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Filesize
9.9MB