Analysis
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max time kernel
138s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
20-03-2022 03:08
General
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Target
794c23dd8f2c86e3fb263e9e3f615551ef3a1183e7dc99e9eeea3faee47453bf.exe
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Size
731KB
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MD5
b9e1489d3bf19c77c3460a06169adc61
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SHA1
686257133c5e52b71a864646faeb6e4b21e651e3
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SHA256
794c23dd8f2c86e3fb263e9e3f615551ef3a1183e7dc99e9eeea3faee47453bf
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SHA512
de38d10d56a6ab283bd19008dbc35873ffc8d6651be07cb36706a519b5d200586e202a5e2e741ccbfcf8d5a56ba7baa596bc8776e57d31f142512f0f52baa6dc
Score
10/10
Malware Config
Signatures
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Shurk
Shurk is an infostealer, written in C++ which appeared in 2021.
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Shurk Stealer Payload 2 IoCs
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Executes dropped EXE 2 IoCs
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Checks computer location settings 2 TTPs 3 IoCs
Looks up country code configured in the registry, likely geofence.
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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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
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Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\794c23dd8f2c86e3fb263e9e3f615551ef3a1183e7dc99e9eeea3faee47453bf.exe"C:\Users\Admin\AppData\Local\Temp\794c23dd8f2c86e3fb263e9e3f615551ef3a1183e7dc99e9eeea3faee47453bf.exe"1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WScript.exe"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\vbs.vbs"2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c bat.bat3⤵
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\SpAldWoqkAJqoAsdFGBxS.sfx.exeSpAldWoqkAJqoAsdFGBxS.sfx.exe -pSpAldWoqkAJqoAsdFGBxS.exe -dC:\Users\Admin\AppData\Local\Temp4⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\SpAldWoqkAJqoAsdFGBxS.exe"C:\Users\Admin\AppData\Local\Temp\SpAldWoqkAJqoAsdFGBxS.exe"5⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
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