onlylogger | bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb

General

Target
bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.exe
Size 381KB
Sample220531-cjsjbsbac6
SHA256 bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb
MD5 075cf7d490be1a0510a48e12c03d370d
SHA1 05cc8b002b56ab69929a929d182a89df1f1c488b
SHA512 76e8c957248f4448f059c12f91dc6d8f9178691040a4ef85f76984583bde828f50896030ccfd7f2250af23a9c431021ec38b2ba480580509f7c7ddd4a938d9b7
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 4 IoCs

resource	yara_rule
behavioral2/memory/4748-131-0x0000000002490000-0x00000000024E1000-memory.dmp	family_onlylogger
behavioral2/memory/4748-133-0x0000000000400000-0x0000000000861000-memory.dmp	family_onlylogger
behavioral2/memory/4748-136-0x0000000002490000-0x00000000024E1000-memory.dmp	family_onlylogger
behavioral2/memory/4748-137-0x0000000000400000-0x0000000000861000-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	bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.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
4872	4748	WerFault.exe	28
3404	4748	WerFault.exe	28
1572	4748	WerFault.exe	28
3484	4748	WerFault.exe	28
3180	4748	WerFault.exe	28
3412	4748	WerFault.exe	28
4560	4748	WerFault.exe	28

Kills process with taskkill 1 IoCs

evasion

pid	Process
3276	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3276	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4748 wrote to memory of 1068	4748	bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.exe	96
PID 4748 wrote to memory of 1068	4748	bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.exe	96
PID 4748 wrote to memory of 1068	4748	bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.exe	96
PID 1068 wrote to memory of 3276	1068	cmd.exe	100
PID 1068 wrote to memory of 3276	1068	cmd.exe	100
PID 1068 wrote to memory of 3276	1068	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.exe
"C:\Users\Admin\AppData\Local\Temp\bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4748
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 712
  2⤵
  - Program crash
  PID:4872
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 784
  2⤵
  - Program crash
  PID:3404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 792
  2⤵
  - Program crash
  PID:1572
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 924
  2⤵
  - Program crash
  PID:3484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 796
  2⤵
  - Program crash
  PID:3180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 964
  2⤵
  - Program crash
  PID:3412
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1068
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "bbb200ad1e830589b8640d4dc0781df351bf789f86c5ad77975ea3ee075862fb.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3276
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4748 -s 744
  2⤵
  - Program crash
  PID:4560

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4748 -ip 4748
1⤵
PID:3196

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4748 -ip 4748
1⤵
PID:4164

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 4748 -ip 4748
1⤵
PID:3064

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4748 -ip 4748
1⤵
PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 4748 -ip 4748
1⤵
PID:1404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 4748 -ip 4748
1⤵
PID:3992

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4748 -ip 4748
1⤵
PID:5084

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/4748-130-0x0000000002460000-0x000000000248E000-memory.dmp

Download

memory/4748-131-0x0000000002490000-0x00000000024E1000-memory.dmp

Download

memory/4748-132-0x0000000002460000-0x000000000248E000-memory.dmp

Download

memory/4748-133-0x0000000000400000-0x0000000000861000-memory.dmp

Download

memory/4748-136-0x0000000002490000-0x00000000024E1000-memory.dmp

Download

memory/4748-137-0x0000000000400000-0x0000000000861000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads