Analysis
- max time kernel
117s - max time network
140s - platform
windows10-2004_x64 - resource
win10v2004-en-20220112 - submitted
19/01/2022, 18:18
Static task
static1
Behavioral task
behavioral1
Sample
4bcc6de7810aa681f8b770e9b3e7ce2aeace7d59165ba.exe
Resource
win7-en-20211208
0 signatures
0 seconds
General
- Target 4bcc6de7810aa681f8b770e9b3e7ce2aeace7d59165ba.exe
- Size 408KB
- Sample220119-wxlsgsccd2
- SHA256 4bcc6de7810aa681f8b770e9b3e7ce2aeace7d59165ba534d34e70f12ecec70f
- MD5 1003e8117d9261a42fd229fdbf7cf754
- SHA1 1d71c59add2766ad7babf474efe9de5ad32b2a0c
- SHA512 3f2ac410dd4377a90a761d17f49998ba1271ea878be6accdd5143e7271cdf3f29fa439573979773d2c11b734ea8964ec273e57f3b87fbe47bb70222f5b59b3ec
- MD5 SHA1 SHA512
Malware Config
Signatures
- Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs
description pid Process procid_target PID 3836 created 2936 3836 WerFault.exe 50 - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Program crash 1 IoCs
pid pid_target Process procid_target 1756 2936 WerFault.exe 50 - 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 WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString WerFault.exe - Enumerates system info in registry 2 TTPs 2 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS WerFault.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU WerFault.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1756 WerFault.exe 1756 WerFault.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2936 4bcc6de7810aa681f8b770e9b3e7ce2aeace7d59165ba.exe Token: SeRestorePrivilege 1756 WerFault.exe Token: SeBackupPrivilege 1756 WerFault.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 3836 wrote to memory of 2936 3836 WerFault.exe 50 PID 3836 wrote to memory of 2936 3836 WerFault.exe 50
Processes
-
C:\Users\Admin\AppData\Local\Temp\4bcc6de7810aa681f8b770e9b3e7ce2aeace7d59165ba.exe"C:\Users\Admin\AppData\Local\Temp\4bcc6de7810aa681f8b770e9b3e7ce2aeace7d59165ba.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2936 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2936 -s 12442⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1756
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 2936 -ip 29361⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3836