onlylogger | 8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130

General

Target
8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.exe
Size 379KB
Sample220502-sp3jgsadfl
SHA256 8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130
MD5 65475d967681aa9ccf49e1a6b09d4112
SHA1 f027911454a5e72cea565014be3bf6cf10ec994e
SHA512 51f812581e6ef1f23d8232ac1f8b684f3bf1ec8427f492d5404c5718b5eea2de7e6088e28575a4d50b37fb5a31f4d23d7271aeaf45eaf41730e26f182a2d9848
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/444-131-0x00000000020D0000-0x0000000002116000-memory.dmp	family_onlylogger
behavioral2/memory/444-132-0x0000000000400000-0x000000000049D000-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-1-5-21-1081944012-3634099177-1681222835-1000\Control Panel\International\Geo\Nation	8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.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 8 IoCs

pid	pid_target	Process	procid_target
4072	444	WerFault.exe	82
1684	444	WerFault.exe	82
4020	444	WerFault.exe	82
4368	444	WerFault.exe	82
4568	444	WerFault.exe	82
2496	444	WerFault.exe	82
2448	444	WerFault.exe	82
1540	444	WerFault.exe	82

Kills process with taskkill 1 IoCs

evasion

pid	Process
2432	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2432	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 444 wrote to memory of 1312	444	8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.exe	104
PID 444 wrote to memory of 1312	444	8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.exe	104
PID 444 wrote to memory of 1312	444	8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.exe	104
PID 1312 wrote to memory of 2432	1312	cmd.exe	108
PID 1312 wrote to memory of 2432	1312	cmd.exe	108
PID 1312 wrote to memory of 2432	1312	cmd.exe	108

C:\Users\Admin\AppData\Local\Temp\8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.exe
"C:\Users\Admin\AppData\Local\Temp\8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 612
  2⤵
  - Program crash
  PID:4072
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 652
  2⤵
  - Program crash
  PID:1684
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 648
  2⤵
  - Program crash
  PID:4020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 616
  2⤵
  - Program crash
  PID:4368
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 1072
  2⤵
  - Program crash
  PID:4568
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 1180
  2⤵
  - Program crash
  PID:2496
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 1188
  2⤵
  - Program crash
  PID:2448
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1312
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "8a33619a36d5c1aa3e59abfb3038394e9269e64555922bca1e02875946d3a130.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2432
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 444 -s 1256
  2⤵
  - Program crash
  PID:1540

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 444 -ip 444
1⤵
PID:4632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 196 -p 444 -ip 444
1⤵
PID:1916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 444 -ip 444
1⤵
PID:204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 444 -ip 444
1⤵
PID:3700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 444 -ip 444
1⤵
PID:2212

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 444 -ip 444
1⤵
PID:2780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 568 -p 444 -ip 444
1⤵
PID:1336

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 444 -ip 444
1⤵
PID:1092

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/444-130-0x000000000050E000-0x0000000000536000-memory.dmp

Download

memory/444-131-0x00000000020D0000-0x0000000002116000-memory.dmp

Download

memory/444-132-0x0000000000400000-0x000000000049D000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads