onlylogger | 4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39

General

Target
4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe
Size 227KB
Sample220512-n6djgadfd7
SHA256 4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39
MD5 2af5a00d00befdcbc1a04d8a993ddfeb
SHA1 838211204c6a17149aa027882d4be61c4b29ce33
SHA512 866efcf751fe16d1607a17d16248b9bf68127f455a90c485628d7d45fce7155b705b38882e6bad83c9c926b5fad3189914e08312aa775b481678daf5dd5fc97b
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/4032-131-0x0000000001070000-0x00000000010B6000-memory.dmp	family_onlylogger
behavioral2/memory/4032-132-0x0000000000400000-0x0000000000F96000-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-1-5-21-1809750270-3141839489-3074374771-1000\Control Panel\International\Geo\Nation	4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.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 1 IoCs

pid	pid_target	Process	procid_target
4780	4032	WerFault.exe	82

Kills process with taskkill 1 IoCs

evasion

pid	Process
1924	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1924	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4032 wrote to memory of 4784	4032	4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe	84
PID 4032 wrote to memory of 4784	4032	4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe	84
PID 4032 wrote to memory of 4784	4032	4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe	84
PID 4784 wrote to memory of 1924	4784	cmd.exe	87
PID 4784 wrote to memory of 1924	4784	cmd.exe	87
PID 4784 wrote to memory of 1924	4784	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe
"C:\Users\Admin\AppData\Local\Temp\4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4032
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4784
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "4ce6cd07bcac1f637e4b5202c91957d3b3d0f77c19dbe53e0ef30f7baf766f39.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1924
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4032 -s 1076
  2⤵
  - Program crash
  PID:4780

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4032 -ip 4032
1⤵
PID:2020

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4032-130-0x00000000012D3000-0x00000000012FB000-memory.dmp

Download

memory/4032-131-0x0000000001070000-0x00000000010B6000-memory.dmp

Download

memory/4032-132-0x0000000000400000-0x0000000000F96000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads