Analysis
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max time kernel
151s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
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submitted
04-09-2022 08:24
General
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Target
CIRCULAR OBLIGACION CONTRACTUAL No. 9840984984098502016092.exe
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Size
4.5MB
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MD5
70a5ee83354d6c164927075675bd9154
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SHA1
bd7547e04ae2e83596678aea2e6b4c233661a720
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SHA256
4e3513b2d8f1b7e3ea6b81519675e8f0fffcda7d33ef15b7a6a0e23d8db10a26
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SHA512
733a1e8e44193ca695b993bafb6c5f66af7ec085bdf2fd77f2a6573f20b61ee0c39068db7694208cbf6018664602c59956337916a563f97accfe13c71a45adc4
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SSDEEP
98304:oFTNKpbNPn8kmfoHcHUlWGUJPjIoO+LNRJ0dKGyLW8dSgHpC+n7:oFTuNNmQ8ClUxIF+LNoKGD8Q8N
Malware Config
Extracted
bitrat
1.38
diosesamora.con-ip.com:3005
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communication_password
202cb962ac59075b964b07152d234b70
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tor_process
tor
Signatures
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BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
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UPX packed file 6 IoCs
Detects executables packed with UPX/modified UPX open source packer.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Adds Run key to start application 2 TTPs 1 IoCs
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Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
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Suspicious use of SetThreadContext 1 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 5 IoCs
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Suspicious use of AdjustPrivilegeToken 4 IoCs
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Suspicious use of SetWindowsHookEx 2 IoCs
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Suspicious use of WriteProcessMemory 13 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\CIRCULAR OBLIGACION CONTRACTUAL No. 9840984984098502016092.exe"C:\Users\Admin\AppData\Local\Temp\CIRCULAR OBLIGACION CONTRACTUAL No. 9840984984098502016092.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -Seconds 302⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Local\Temp\CIRCULAR OBLIGACION CONTRACTUAL No. 9840984984098502016092.exe"C:\Users\Admin\AppData\Local\Temp\CIRCULAR OBLIGACION CONTRACTUAL No. 9840984984098502016092.exe"2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
216KB
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Filesize
6.2MB
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Filesize
136KB
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Filesize
408KB
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Filesize
408KB
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Filesize
120KB
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Filesize
6.5MB
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Filesize
104KB
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Filesize
4.5MB
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Filesize
3.9MB
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Filesize
228KB
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Filesize
3.9MB
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Filesize
3.9MB
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Filesize
3.9MB
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Filesize
228KB
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Filesize
228KB
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Filesize
3.9MB
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Filesize
3.9MB
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Filesize
228KB
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Filesize
228KB
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Filesize
228KB
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Filesize
228KB
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Filesize
228KB
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Filesize
228KB
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Filesize
228KB