Analysis
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max time kernel
63s -
max time network
68s -
platform
windows10-2004_x64 -
resource
win10v2004-20240221-en -
resource tags
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submitted
24-02-2024 22:46
General
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Target
brohack.exe
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Size
303KB
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MD5
5fbc498bf0281af7a003d76738adc0f7
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SHA1
96a94cab468c5996b1a42732ad0983f69be45c35
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SHA256
53dd67f00fea6509b437e697d5d9c0b21ce0b696842325f5310a9084c6cc3f88
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SHA512
025662fd7ab97e0bb4bcb12072839b8a3ce79a951c43b371b9a88a734e2206c88ee8e9dba696216a643ac17dc7043c6efae47200864906e33197a5b0a1264742
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SSDEEP
6144:bRlT6MDdbICydeBV9suqPmlF62c6bmA1D09lu:bRT4uqPmH6Vg1DQu
Malware Config
Extracted
44caliber
https://discord.com/api/webhooks/1209814880681463859/eV-PqCKGxfEhAj3f4ye1Dye3QnGKGcvqzlk_ma67nMX2y4MCq8PIBJYDQjaJzHmnQ3Ch
Signatures
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44Caliber
An open source infostealer written in C#.
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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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Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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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Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Suspicious behavior: EnumeratesProcesses 11 IoCs
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Suspicious use of AdjustPrivilegeToken 6 IoCs
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Suspicious use of FindShellTrayWindow 33 IoCs
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Suspicious use of SendNotifyMessage 33 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\brohack.exe"C:\Users\Admin\AppData\Local\Temp\brohack.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
328KB
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Filesize
10.8MB
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Filesize
64KB
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Filesize
10.8MB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB
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Filesize
4KB