2da1df1d937dc7f605e62a93933854bfda703cffc8ec7ed7614886bdb8291e97

General

Target

8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exe
Size

375KB
MD5

32816da2c4b57793f943d58058d9abec
SHA1

2b7ec6b605cabf7c1156abb99640d30c6567203d
SHA256

8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d
SHA512

634bf6e5350d5b041b093fb49c330533c0ebb42105bc386b941ab7e3c619122418b905410a660517a99e12574c78f8ddf4b5bf1f21b73233678cda0842ff94bf

Score

10^/10

discovery spyware stealer

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 3392 created 4820 3392 WerFault.exe 8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

description	pid	process	target process
PID 3392 created 4820	3392	WerFault.exe	8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exe

Drops file in Windows directory 9 IoCs

Processes:

svchost.exeTiWorker.exeWerFault.exe

description	ioc	process
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
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\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe
File opened for modification	C:\Windows\Logs\CBS\CBS.log	TiWorker.exe
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	WerFault.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

3536 4820 WerFault.exe 8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exe

pid	pid_target	process	target process
3536	4820	WerFault.exe	8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.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

3536 WerFault.exe
3536 WerFault.exe

pid	process
3536	WerFault.exe
3536	WerFault.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

Processes:

8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exesvchost.exeTiWorker.exeWerFault.exe

description	pid	process
Token: SeDebugPrivilege	4820	8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exe
Token: SeShutdownPrivilege	4988	svchost.exe
Token: SeCreatePagefilePrivilege	4988	svchost.exe
Token: SeShutdownPrivilege	4988	svchost.exe
Token: SeCreatePagefilePrivilege	4988	svchost.exe
Token: SeShutdownPrivilege	4988	svchost.exe
Token: SeCreatePagefilePrivilege	4988	svchost.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	3536	WerFault.exe
Token: SeBackupPrivilege	3536	WerFault.exe
Token: SeBackupPrivilege	3536	WerFault.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe
Token: SeBackupPrivilege	2092	TiWorker.exe
Token: SeRestorePrivilege	2092	TiWorker.exe
Token: SeSecurityPrivilege	2092	TiWorker.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

WerFault.exe

description	pid	process	target process
PID 3392 wrote to memory of 4820	3392	WerFault.exe	8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exe
PID 3392 wrote to memory of 4820	3392	WerFault.exe	8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exe

C:\Users\Admin\AppData\Local\Temp\8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exe
"C:\Users\Admin\AppData\Local\Temp\8ac1ff8f3045a819c8bc2b7e6f11eef96117f8e11b81f97a1c5ac72cc807458d.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4820 -s 1244
2⤵
- Drops file in Windows directory
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3536

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:4988

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:2092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4820 -ip 4820
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3392

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

3

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4820-145-0x0000000007514000-0x0000000007516000-memory.dmp

Filesize
8KB

Download
memory/4820-132-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/4820-140-0x0000000007AD0000-0x00000000080E8000-memory.dmp

Filesize
6.1MB

Download
memory/4820-133-0x0000000074CEE000-0x0000000074CEF000-memory.dmp

Filesize
4KB

Download
memory/4820-134-0x0000000007510000-0x0000000007511000-memory.dmp

Filesize
4KB

Download
memory/4820-135-0x0000000007512000-0x0000000007513000-memory.dmp

Filesize
4KB

Download
memory/4820-136-0x0000000007513000-0x0000000007514000-memory.dmp

Filesize
4KB

Download
memory/4820-137-0x0000000007520000-0x0000000007AC4000-memory.dmp

Filesize
5.6MB

Download
memory/4820-142-0x0000000007430000-0x0000000007442000-memory.dmp

Filesize
72KB

Download
memory/4820-150-0x0000000008ED0000-0x0000000009092000-memory.dmp

Filesize
1.8MB

Download
memory/4820-151-0x00000000090A0000-0x00000000095CC000-memory.dmp

Filesize
5.2MB

Download
memory/4820-131-0x0000000004870000-0x00000000048A9000-memory.dmp

Filesize
228KB

Download
memory/4820-149-0x0000000008CF0000-0x0000000008D0E000-memory.dmp

Filesize
120KB

Download
memory/4820-143-0x00000000080F0000-0x00000000081FA000-memory.dmp

Filesize
1.0MB

Download
memory/4820-144-0x0000000007470000-0x00000000074AC000-memory.dmp

Filesize
240KB

Download
memory/4820-130-0x0000000004840000-0x000000000486B000-memory.dmp

Filesize
172KB

Download
memory/4820-146-0x0000000008480000-0x00000000084E6000-memory.dmp

Filesize
408KB

Download
memory/4820-147-0x0000000008B20000-0x0000000008BB2000-memory.dmp

Filesize
584KB

Download
memory/4820-148-0x0000000008BD0000-0x0000000008C46000-memory.dmp

Filesize
472KB

Download
memory/4988-138-0x00000214C4720000-0x00000214C4730000-memory.dmp

Filesize
64KB

Download
memory/4988-139-0x00000214C4780000-0x00000214C4790000-memory.dmp

Filesize
64KB

Download
memory/4988-141-0x00000214C6E40000-0x00000214C6E44000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads