onlylogger | 533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983

General

Target

533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
Size

435KB
MD5

fe7a8129af968c9075a7b59d1f590135
SHA1

d818dfbd8de817570319bb767489e4822cee1f83
SHA256

533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983
SHA512

fbd8df5e8213976a710d8ae4ba245a2d6baef37805afb298bbe4e033b13252e46ad7e53b493fd9a9a98bb85bf1ab08b271b0535bd757006281852786583bedea

Score

10^/10

onlylogger loader

Malware Config

Signatures

OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger

OnlyLogger payload 4 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4344-132-0x00000000009A0000-0x00000000009E9000-memory.dmp	family_onlylogger
behavioral2/memory/4344-133-0x0000000000400000-0x000000000089D000-memory.dmp	family_onlylogger
behavioral2/memory/4344-135-0x00000000009A0000-0x00000000009E9000-memory.dmp	family_onlylogger
behavioral2/memory/4344-138-0x0000000000400000-0x000000000089D000-memory.dmp	family_onlylogger

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2280897447-3291712302-3137480060-1000\Control Panel\International\Geo\Nation	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 7 IoCs

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
4556	4344	WerFault.exe	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
2904	4344	WerFault.exe	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
3084	4344	WerFault.exe	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
768	4344	WerFault.exe	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
3344	4344	WerFault.exe	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
64	4344	WerFault.exe	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
4868	4344	WerFault.exe	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

4088 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 4088 taskkill.exe

pid	process
4088	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	4088	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.execmd.exe

description	pid	process	target process
PID 4344 wrote to memory of 1568	4344	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe	cmd.exe
PID 4344 wrote to memory of 1568	4344	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe	cmd.exe
PID 4344 wrote to memory of 1568	4344	533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe	cmd.exe
PID 1568 wrote to memory of 4088	1568	cmd.exe	taskkill.exe
PID 1568 wrote to memory of 4088	1568	cmd.exe	taskkill.exe
PID 1568 wrote to memory of 4088	1568	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe
"C:\Users\Admin\AppData\Local\Temp\533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 696
  2⤵
  - Program crash
  PID:4556
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 792
  2⤵
  - Program crash
  PID:2904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 920
  2⤵
  - Program crash
  PID:3084
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 932
  2⤵
  - Program crash
  PID:768
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 932
  2⤵
  - Program crash
  PID:3344
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 968
  2⤵
  - Program crash
  PID:64
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1568
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "533ab0f4560b3c599c44d1c7bfa716205663b30b510f820cf896d1e30d89b983.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4088
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4344 -s 1132
  2⤵
  - Program crash
  PID:4868

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4344 -ip 4344
1⤵
PID:4516

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4344 -ip 4344
1⤵
PID:372

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4344 -ip 4344
1⤵
PID:2024

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 4344 -ip 4344
1⤵
PID:4232

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 4344 -ip 4344
1⤵
PID:3456

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4344 -ip 4344
1⤵
PID:1696

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4344 -ip 4344
1⤵
PID:1464

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1568-136-0x0000000000000000-mapping.dmp

Download
memory/4088-137-0x0000000000000000-mapping.dmp

Download
memory/4344-131-0x00000000008A0000-0x00000000009A0000-memory.dmp

Filesize
1024KB

Download
memory/4344-132-0x00000000009A0000-0x00000000009E9000-memory.dmp

Filesize
292KB

Download
memory/4344-133-0x0000000000400000-0x000000000089D000-memory.dmp

Filesize
4.6MB

Download
memory/4344-134-0x00000000008A0000-0x00000000009A0000-memory.dmp

Filesize
1024KB

Download
memory/4344-135-0x00000000009A0000-0x00000000009E9000-memory.dmp

Filesize
292KB

Download
memory/4344-138-0x0000000000400000-0x000000000089D000-memory.dmp

Filesize
4.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads