Analysis
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max time kernel
183s -
max time network
191s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
01-12-2022 02:04
Static task
static1
Behavioral task
behavioral1
Sample
87585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586.exe
Resource
win7-20221111-en
General
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Target
87585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586.exe
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Size
228KB
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MD5
329f6bbcb2a52df13d255d25dc1bce10
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SHA1
455e863b1af3e738abdc6c1d5a2743071a75b584
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SHA256
87585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586
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SHA512
2dd4ab27b676bf157988795e50c066d1d24628ebe477471e9ac3849619f85088b9afd29c078953222d26a28c06303f971ed6877a39a2911e4f616fcb98914e8d
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SSDEEP
6144:WpIWTqzmgoJlS5Oz4BS9sqLFuV8G0BjH8K:Wh4mgoJlS5OsGQ8d
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4964 Windows Update.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 87585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads local data of messenger clients 2 TTPs
Infostealers often target stored data of messaging applications, which can include saved credentials and account information.
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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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Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 dw20.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz dw20.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString dw20.exe -
Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS dw20.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU dw20.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4964 Windows Update.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeBackupPrivilege 3520 dw20.exe Token: SeBackupPrivilege 3520 dw20.exe Token: SeDebugPrivilege 4964 Windows Update.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4964 Windows Update.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2252 wrote to memory of 4964 2252 87585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586.exe 78 PID 2252 wrote to memory of 4964 2252 87585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586.exe 78 PID 4964 wrote to memory of 3520 4964 Windows Update.exe 82 PID 4964 wrote to memory of 3520 4964 Windows Update.exe 82
Processes
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C:\Users\Admin\AppData\Local\Temp\87585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586.exe"C:\Users\Admin\AppData\Local\Temp\87585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2252 -
C:\Users\Admin\AppData\Roaming\Windows Update.exe"C:\Users\Admin\AppData\Roaming\Windows Update.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4964 -
C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exedw20.exe -x -s 18563⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:3520
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
102B
MD5f309ad2dda993483bdff07a679c6e674
SHA19871564c9a24a31b9fca7bcb6ec1d6a6f5e60d8b
SHA256b86f228978df92a45cefd086e4d07a96d7a571bda00d955b75f9d41e28c17b37
SHA51247d1776638d92328c15f4d2a1cb9ec324b1890a6c96909ba6890cc3b23c91e095c5868f28f69cc83c29cfd47f1a7ce1731e0de93b4f0916324d2f4b914fcc6b1
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Filesize
228KB
MD5329f6bbcb2a52df13d255d25dc1bce10
SHA1455e863b1af3e738abdc6c1d5a2743071a75b584
SHA25687585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586
SHA5122dd4ab27b676bf157988795e50c066d1d24628ebe477471e9ac3849619f85088b9afd29c078953222d26a28c06303f971ed6877a39a2911e4f616fcb98914e8d
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Filesize
228KB
MD5329f6bbcb2a52df13d255d25dc1bce10
SHA1455e863b1af3e738abdc6c1d5a2743071a75b584
SHA25687585830c648948e8a4f0721714b1dc7c5c32ab208a70f04eadcd472a5c89586
SHA5122dd4ab27b676bf157988795e50c066d1d24628ebe477471e9ac3849619f85088b9afd29c078953222d26a28c06303f971ed6877a39a2911e4f616fcb98914e8d