onlylogger | 38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d

General

Target
38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.exe
Size 389KB
Sample220625-xe42saaac9
SHA256 38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d
MD5 f5abc35fad96869497e633cae6700671
SHA1 cef6b41ce37acd5b7f461a05943ab4ace115c37f
SHA512 6ff68fdeea28d749c46456b02ae234c838c68e58d42288a7fedba9cf6eb428230ee2fa0ddaf280576a6ad7cfcb69dc27c33d2f6b6cce746b9780472aca2d7dc6
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 3 IoCs

resource	yara_rule
behavioral2/memory/5072-131-0x0000000003020000-0x0000000003069000-memory.dmp	family_onlylogger
behavioral2/memory/5072-134-0x0000000000400000-0x0000000002F29000-memory.dmp	family_onlylogger
behavioral2/memory/5072-136-0x0000000000400000-0x0000000002F29000-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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.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
544	5072	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
2436	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2436	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5072 wrote to memory of 3152	5072	38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.exe	82
PID 5072 wrote to memory of 3152	5072	38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.exe	82
PID 5072 wrote to memory of 3152	5072	38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.exe	82
PID 3152 wrote to memory of 2436	3152	cmd.exe	85
PID 3152 wrote to memory of 2436	3152	cmd.exe	85
PID 3152 wrote to memory of 2436	3152	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.exe
"C:\Users\Admin\AppData\Local\Temp\38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:5072
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3152
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "38d4d109d3ce2682a180db69c7fcfd430d17185efd3125d4c8d771effcf1a27d.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 5072 -s 1128
  2⤵
  - Program crash
  PID:544

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 5072 -ip 5072
1⤵
PID:804

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/5072-130-0x000000000308D000-0x00000000030B6000-memory.dmp

Download

memory/5072-131-0x0000000003020000-0x0000000003069000-memory.dmp

Download

memory/5072-134-0x0000000000400000-0x0000000002F29000-memory.dmp

Download

memory/5072-135-0x000000000308D000-0x00000000030B6000-memory.dmp

Download

memory/5072-136-0x0000000000400000-0x0000000002F29000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads