1e6b5d1de8ba51cbf5d94600d07923b165e2e92569d653c56152bbb81f726f39

Resubmissions

01/03/2022, 08:14

220301-j4ypeaafcr 10

01/03/2022, 07:35

220301-jevapaghd6 10

Analysis

max time kernel
113s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-en-20220113
submitted
01/03/2022, 07:35

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

sample.exe
Size

141KB
MD5

1c2af6c5e1b8b87189b5da7bd3cefe30
SHA1

6881acb4f1401f0db02bbebe82e2381a0b7c447d
SHA256

cf0705a3e4f3690e28184eb019a4940e7291ce5b3d52747ff80b72e90922a89b
SHA512

1f391111cbeb12f892c272076111a8317b98c9eda4bbf12eefb7a47bcc1a327b43310739a301718b700dc2ce28339b00533f2c9eda1f06ffff21f30d69ce6362

Score

10^/10

Malware Config

Signatures

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 3184 created 4440	3184	WerFault.exe	61

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4216	4440	WerFault.exe	61

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

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	WerFault.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	WerFault.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4216	WerFault.exe
4216	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4440	sample.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3184 wrote to memory of 4440	3184	WerFault.exe	61
PID 3184 wrote to memory of 4440	3184	WerFault.exe	61

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4440
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 4440 -s 944
  2⤵
  - Program crash
  - Checks processor information in registry
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:4216

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 408 -p 4440 -ip 4440
1⤵
- Suspicious use of NtCreateProcessExOtherParentProcess
- Suspicious use of WriteProcessMemory
PID:3184

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4440-130-0x00000208F5640000-0x00000208F566A000-memory.dmp

Filesize
168KB

Download
memory/4440-131-0x00007FF8F1E13000-0x00007FF8F1E15000-memory.dmp

Filesize
8KB

Download
memory/4440-132-0x00000208F75E0000-0x00000208F75E2000-memory.dmp

Filesize
8KB

Download
memory/4440-133-0x00000208F5C20000-0x00000208F5C21000-memory.dmp

Filesize
4KB

Download