onlylogger | 475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451

General

Target
475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.exe
Size 256KB
Sample220502-sp4fsaadfn
SHA256 475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451
MD5 e9dbb462858d5f2bd4d802eb140a0e6c
SHA1 457c87016296f7ce83f72494971a6c3af754c378
SHA512 e71ecc47792aebdf1c73fa4c0aedfb34c04a70428048a65b8a4d5216a50d4169d3ed5f9b5a3898cd385c3629ef3c4751510b4d688d4d3585873c3a40656af836
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/4904-131-0x00000000024D0000-0x0000000002516000-memory.dmp	family_onlylogger
behavioral2/memory/4904-132-0x0000000000400000-0x00000000008DE000-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	475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.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
628	4904	WerFault.exe	79
608	4904	WerFault.exe	79
220	4904	WerFault.exe	79
1144	4904	WerFault.exe	79
4184	4904	WerFault.exe	79
3328	4904	WerFault.exe	79
4248	4904	WerFault.exe	79
4676	4904	WerFault.exe	79

Kills process with taskkill 1 IoCs

evasion

pid	Process
4204	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4204	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4904 wrote to memory of 3824	4904	475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.exe	100
PID 4904 wrote to memory of 3824	4904	475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.exe	100
PID 4904 wrote to memory of 3824	4904	475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.exe	100
PID 3824 wrote to memory of 4204	3824	cmd.exe	104
PID 3824 wrote to memory of 4204	3824	cmd.exe	104
PID 3824 wrote to memory of 4204	3824	cmd.exe	104

C:\Users\Admin\AppData\Local\Temp\475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.exe
"C:\Users\Admin\AppData\Local\Temp\475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 612
  2⤵
  - Program crash
  PID:628
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 652
  2⤵
  - Program crash
  PID:608
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 636
  2⤵
  - Program crash
  PID:220
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 644
  2⤵
  - Program crash
  PID:1144
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 628
  2⤵
  - Program crash
  PID:4184
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 1176
  2⤵
  - Program crash
  PID:3328
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 1192
  2⤵
  - Program crash
  PID:4248
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3824
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "475473f12c29b516bcdcae8b4f8ecb92cdbf4b0fd6a999a00736a3587402e451.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4204
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 1080
  2⤵
  - Program crash
  PID:4676

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 4904 -ip 4904
1⤵
PID:2616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4904 -ip 4904
1⤵
PID:672

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 4904 -ip 4904
1⤵
PID:3412

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4904 -ip 4904
1⤵
PID:1376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4904 -ip 4904
1⤵
PID:4236

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 4904 -ip 4904
1⤵
PID:3124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4904 -ip 4904
1⤵
PID:4820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 4904 -ip 4904
1⤵
PID:3740

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/4904-130-0x0000000000A48000-0x0000000000A70000-memory.dmp

Download

memory/4904-131-0x00000000024D0000-0x0000000002516000-memory.dmp

Download

memory/4904-132-0x0000000000400000-0x00000000008DE000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads