0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415

General

Target

0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415.exe
Size

100KB
MD5

ea095af933248fbbd0171d5cc26b16ac
SHA1

7b55b58d3d564d1f8f472d05b5dd9e0a836d0073
SHA256

0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415
SHA512

6e7df2e06c56679be937622173c5c02f3547272a9265e95df25a2fbc3d4a5a4f7c8aac9c640e15d6e424616a7782063c3ce44e4d4738dd8ae2f54521ab5cf4f2

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 4764 created 4432 4764 WerFault.exe 0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415.exe

description	pid	process	target process
PID 4764 created 4432	4764	WerFault.exe	0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415.exe

Drops file in Windows directory 8 IoCs

Processes:

svchost.exeTiWorker.exe

description	ioc	process
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
File opened for modification	C:\Windows\WinSxS\pending.xml	TiWorker.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4920 4432 WerFault.exe 0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415.exe

pid	pid_target	process	target process
4920	4432	WerFault.exe	0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

WerFault.exe

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

Processes:

WerFault.exe

pid process

4920 WerFault.exe
4920 WerFault.exe

pid	process
4920	WerFault.exe
4920	WerFault.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

WerFault.exesvchost.exeTiWorker.exe

description	pid	process
Token: SeRestorePrivilege	4920	WerFault.exe
Token: SeBackupPrivilege	4920	WerFault.exe
Token: SeShutdownPrivilege	3452	svchost.exe
Token: SeCreatePagefilePrivilege	3452	svchost.exe
Token: SeShutdownPrivilege	3452	svchost.exe
Token: SeCreatePagefilePrivilege	3452	svchost.exe
Token: SeShutdownPrivilege	3452	svchost.exe
Token: SeCreatePagefilePrivilege	3452	svchost.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe
Token: SeSecurityPrivilege	556	TiWorker.exe
Token: SeBackupPrivilege	556	TiWorker.exe
Token: SeRestorePrivilege	556	TiWorker.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WerFault.exe

description	pid	process	target process
PID 4764 wrote to memory of 4432	4764	WerFault.exe	0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415.exe
PID 4764 wrote to memory of 4432	4764	WerFault.exe	0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415.exe

C:\Users\Admin\AppData\Local\Temp\0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415.exe
"C:\Users\Admin\AppData\Local\Temp\0cf43d7ee166f14fe6914c09e0293bff83136d836f2e7fc897fde05896ddf415.exe"
1⤵
PID:4432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4432 -s 348
2⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4432 -ip 4432
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:4764

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3452

C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3452-130-0x000002C4D1E20000-0x000002C4D1E30000-memory.dmp

Filesize
64KB

Download
memory/3452-131-0x000002C4D1E80000-0x000002C4D1E90000-memory.dmp

Filesize
64KB

Download
memory/3452-132-0x000002C4D4540000-0x000002C4D4544000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads