98d17731ce6eba2772c94fbe5b740cbd83b5d5b0da6809c265ff3dc0da391163

Resubmissions

28-02-2022 15:51

220228-tardcagaan 10

06-08-2021 12:19

210806-hnjccvz1gs 3

Analysis

max time kernel
228s
max time network
273s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
28-02-2022 15:51

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General

Target

98d17731ce6eba2772c94fbe5b740cbd83b5d5b0da6809c265ff3dc0da391163.dll
Size

81KB
MD5

5a9d40558e6c795e24935b9040354e6a
SHA1

52b07a8c5d3163299a0844d802258ccc62b16dff
SHA256

98d17731ce6eba2772c94fbe5b740cbd83b5d5b0da6809c265ff3dc0da391163
SHA512

67e43c79f5fdc53fb694d4f186d0766cbd9358416a843d91680af6513485430c82970ae6d5a53b375d984bae93ebd8177e45470e9b6fe0943505010e18f4c4ac

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 1924 created 1468 1924 WerFault.exe rundll32.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1300 1468 WerFault.exe rundll32.exe

description	pid	process	target process
PID 1924 created 1468	1924	WerFault.exe	rundll32.exe

pid	pid_target	process	target process
1300	1468	WerFault.exe	rundll32.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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

1300 WerFault.exe
1300 WerFault.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

WerFault.exe

description pid process

Token: SeRestorePrivilege 1300 WerFault.exe
Token: SeBackupPrivilege 1300 WerFault.exe

pid	process
1300	WerFault.exe
1300	WerFault.exe

description	pid	process
Token: SeRestorePrivilege	1300	WerFault.exe
Token: SeBackupPrivilege	1300	WerFault.exe

Suspicious use of WriteProcessMemory 5 IoCs

Processes:

rundll32.exeWerFault.exe

description	pid	process	target process
PID 1392 wrote to memory of 1468	1392	rundll32.exe	rundll32.exe
PID 1392 wrote to memory of 1468	1392	rundll32.exe	rundll32.exe
PID 1392 wrote to memory of 1468	1392	rundll32.exe	rundll32.exe
PID 1924 wrote to memory of 1468	1924	WerFault.exe	rundll32.exe
PID 1924 wrote to memory of 1468	1924	WerFault.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\98d17731ce6eba2772c94fbe5b740cbd83b5d5b0da6809c265ff3dc0da391163.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1392

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\98d17731ce6eba2772c94fbe5b740cbd83b5d5b0da6809c265ff3dc0da391163.dll,#1
2⤵
PID:1468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1468 -s 600
3⤵
- Program crash
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1300

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1468 -ip 1468
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:1924

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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