a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218

General

Target

a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe
Size

4.0MB
MD5

ffb8f2b184a583a281e42b7ceeaacbc1
SHA1

848f8cb912fd833a08481f571146022fb73eb80e
SHA256

a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218
SHA512

5342fae478ccac6d933894905c5b068bd2ac0ac97dad5afb88831b31fd58bc9237388149de0439489a8913224719cb038d5c929fa098581cc7da981fd0a4a79b
SSDEEP

98304:Xoe0/H/vLq+crSY8bBXKJ01peq1cZqD+cngaSHQ3rafb:XhAHLq+cJ8NXKJApeq1c8DJgaBi

Score

7^/10

Malware Config

Signatures

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
4300	5088	WerFault.exe	80
4944	4848	WerFault.exe	84
424	4848	WerFault.exe	84

Modifies registry class 4 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32A04561-77C1-13D1-B2E4-0060975B8649}\0 = 709c3ee7dc721bb5d28b69ee98b64d0c3f026a5b1f	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32A04561-77C1-13D1-B2E4-0060975B8649}\Version	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32A04561-77C1-13D1-B2E4-0060975B8649}\Version\ = "1.0"	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{32A04561-77C1-13D1-B2E4-0060975B8649}	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: 33	4848	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe
Token: SeIncBasePriorityPrivilege	4848	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4848	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 5088 wrote to memory of 4848	5088	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe	84
PID 5088 wrote to memory of 4848	5088	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe	84
PID 5088 wrote to memory of 4848	5088	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe	84
PID 5088 wrote to memory of 4848	5088	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe	84
PID 5088 wrote to memory of 4848	5088	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe	84
PID 5088 wrote to memory of 4848	5088	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe	84
PID 5088 wrote to memory of 4848	5088	a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe	84

C:\Users\Admin\AppData\Local\Temp\a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe
"C:\Users\Admin\AppData\Local\Temp\a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5088 -s 484
  2⤵
  - Program crash
  PID:4300
- C:\Users\Admin\AppData\Local\Temp\a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe
  "C:\Users\Admin\AppData\Local\Temp\a13b90111cf5054e290a42ac307d8fac2113cd5e597f7b9f84051b2d88986218.exe"
  2⤵
  - Checks BIOS information in registry
  - Modifies registry class
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4848
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 544
    3⤵
    - Program crash
    PID:4944
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4848 -s 552
    3⤵
    - Program crash
    PID:424

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 5088 -ip 5088
1⤵
PID:1880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4848 -ip 4848
1⤵
PID:4932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 4848 -ip 4848
1⤵
PID:1432

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4848-134-0x00000000020A0000-0x00000000020C4000-memory.dmp

Filesize
144KB

Download
memory/4848-140-0x0000000000400000-0x0000000000463200-memory.dmp

Filesize
396KB

Download
memory/4848-139-0x0000000000400000-0x0000000000463200-memory.dmp

Filesize
396KB

Download
memory/4848-141-0x0000000000400000-0x0000000000463200-memory.dmp

Filesize
396KB

Download
memory/4848-142-0x0000000000400000-0x0000000000463200-memory.dmp

Filesize
396KB

Download
memory/4848-143-0x0000000000402000-0x0000000000403000-memory.dmp

Filesize
4KB

Download
memory/4848-144-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/4848-146-0x0000000000400000-0x0000000000463200-memory.dmp

Filesize
396KB

Download
memory/5088-132-0x0000000000400000-0x0000000000463200-memory.dmp

Filesize
396KB

Download
memory/5088-147-0x0000000000400000-0x0000000000463200-memory.dmp

Filesize
396KB

Download
memory/5088-148-0x0000000000400000-0x0000000000463200-memory.dmp

Filesize
396KB

Download

Analysis

Sharing