onlylogger | 8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052

General

Target
8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.exe
Size 442KB
Sample220508-g4c2lahcd2
SHA256 8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052
MD5 82be6306378a74bef5b66427f62fc8b1
SHA1 eae8efe9e35bb561e1b368a55e90c39039834d01
SHA512 74826e04813938e1f7105fd08bf4335e8740633f3e326d2ec2db853a60c0e49127f7695264babb4d2271c5d1a03c5fe0e54c6b7151ed6a0a3300ab38c0240f41
MD5 SHA1 SHA512

Score

10^/10

onlylogger loader

Malware Config

Signatures

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

OnlyLogger Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4612-131-0x0000000000EA0000-0x0000000000EE6000-memory.dmp	family_onlylogger
behavioral2/memory/4612-132-0x0000000000400000-0x0000000000C4B000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.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

pid	pid_target	Process	procid_target
3684	4612	WerFault.exe	80
2684	4612	WerFault.exe	80
428	4612	WerFault.exe	80
1308	4612	WerFault.exe	80
4076	4612	WerFault.exe	80
1316	4612	WerFault.exe	80
4036	4612	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
3524	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3524	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4612 wrote to memory of 996	4612	8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.exe	105
PID 4612 wrote to memory of 996	4612	8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.exe	105
PID 4612 wrote to memory of 996	4612	8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.exe	105
PID 996 wrote to memory of 3524	996	cmd.exe	109
PID 996 wrote to memory of 3524	996	cmd.exe	109
PID 996 wrote to memory of 3524	996	cmd.exe	109

C:\Users\Admin\AppData\Local\Temp\8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.exe
"C:\Users\Admin\AppData\Local\Temp\8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4612
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 612
  2⤵
  - Program crash
  PID:3684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 576
  2⤵
  - Program crash
  PID:2684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 744
  2⤵
  - Program crash
  PID:428
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 808
  2⤵
  - Program crash
  PID:1308
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 1092
  2⤵
  - Program crash
  PID:4076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 1240
  2⤵
  - Program crash
  PID:1316
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:996
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "8f7792066e0b1960954b27a2edd4e7a870e87875b6d746af69dad4567ae9f052.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3524
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4612 -s 1412
  2⤵
  - Program crash
  PID:4036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 4612 -ip 4612
1⤵
PID:4312

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4612 -ip 4612
1⤵
PID:4176

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4612 -ip 4612
1⤵
PID:2444

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4612 -ip 4612
1⤵
PID:2292

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 4612 -ip 4612
1⤵
PID:832

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4612 -ip 4612
1⤵
PID:3752

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4612 -ip 4612
1⤵
PID:3332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4612 -ip 4612
1⤵
PID:1136

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/4612-130-0x0000000000F4E000-0x0000000000F76000-memory.dmp

Download

memory/4612-131-0x0000000000EA0000-0x0000000000EE6000-memory.dmp

Download

memory/4612-132-0x0000000000400000-0x0000000000C4B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads