onlylogger | 289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4

General

Target
289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.exe
Size 361KB
Sample220615-vn74pabfb3
SHA256 289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4
MD5 5a0787659c29ebb9a06ab08903f93a87
SHA1 3b27d78446fe8ccea1d08e4a466cc767cf74a5fb
SHA512 d813d47c50366b6f22b7ac6a45099dd4864cb817ede79d84d474f477fe47f77282dbf0b95b7f241d1432346ade1b68309b1bd6dd1bad7ff4d9a035fcc8cbe011
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/3444-132-0x0000000001030000-0x0000000001079000-memory.dmp	family_onlylogger
behavioral2/memory/3444-133-0x0000000000400000-0x000000000102B000-memory.dmp	family_onlylogger
behavioral2/memory/3444-135-0x0000000001030000-0x0000000001079000-memory.dmp	family_onlylogger
behavioral2/memory/3444-138-0x0000000000400000-0x000000000102B000-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	289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.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
3372	3444	WerFault.exe	80
4164	3444	WerFault.exe	80
2032	3444	WerFault.exe	80
1992	3444	WerFault.exe	80
4380	3444	WerFault.exe	80
1376	3444	WerFault.exe	80
204	3444	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
1528	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1528	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3444 wrote to memory of 176	3444	289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.exe	96
PID 3444 wrote to memory of 176	3444	289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.exe	96
PID 3444 wrote to memory of 176	3444	289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.exe	96
PID 176 wrote to memory of 1528	176	cmd.exe	100
PID 176 wrote to memory of 1528	176	cmd.exe	100
PID 176 wrote to memory of 1528	176	cmd.exe	100

C:\Users\Admin\AppData\Local\Temp\289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.exe
"C:\Users\Admin\AppData\Local\Temp\289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3444
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 696
  2⤵
  - Program crash
  PID:3372
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 696
  2⤵
  - Program crash
  PID:4164
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 800
  2⤵
  - Program crash
  PID:2032
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 828
  2⤵
  - Program crash
  PID:1992
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 828
  2⤵
  - Program crash
  PID:4380
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 944
  2⤵
  - Program crash
  PID:1376
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:176
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "289317d820441eea1d86347d68680898d2314b737669d4b01d09fdbfe30ae9b4.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1528
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3444 -s 976
  2⤵
  - Program crash
  PID:204

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3444 -ip 3444
1⤵
PID:1472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 176 -p 3444 -ip 3444
1⤵
PID:4632

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3444 -ip 3444
1⤵
PID:2184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3444 -ip 3444
1⤵
PID:4764

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3444 -ip 3444
1⤵
PID:1672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3444 -ip 3444
1⤵
PID:2960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 3444 -ip 3444
1⤵
PID:3612

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/3444-131-0x00000000010B0000-0x00000000011B0000-memory.dmp

Download

memory/3444-132-0x0000000001030000-0x0000000001079000-memory.dmp

Download

memory/3444-133-0x0000000000400000-0x000000000102B000-memory.dmp

Download

memory/3444-134-0x00000000010B0000-0x00000000011B0000-memory.dmp

Download

memory/3444-135-0x0000000001030000-0x0000000001079000-memory.dmp

Download

memory/3444-138-0x0000000000400000-0x000000000102B000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads