gcleaner | 7d2a1db466bbc3c9d1b45211679756156953d1d8e68783d5d5bf0a33f08d5dc5

General

Target

fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe
Size

380KB
MD5

fa9f2c2ac3880b8e36473957125095b9
SHA1

14908426ff2b5b6ce7e655b52c1c7fbbd2b229e9
SHA256

7d2a1db466bbc3c9d1b45211679756156953d1d8e68783d5d5bf0a33f08d5dc5
SHA512

4a9a93f6bcc5621c098c2743f57b1e9a5b527a110db0cd6002ab46f606e4a7400734317eef51306c8ee5a9d68e7e96ecd8b036df2ef6a7879305ac63f3deeaec
SSDEEP

6144:bdd/qv46YnuHiNeeu5ezICOO4kk9wwtZkdLc6P+q0Sn0zl19pDJO:D/sYnHNe55ezLOO4kbwtwbn0B19b

Score

10^/10

gcleaner onlylogger vidar loader stealer

Malware Config

Extracted

Family

gcleaner

C2

gcl-page.biz

194.145.227.161

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

OnlyLogger payload 4 IoCs

resource	yara_rule
behavioral2/memory/3192-2-0x00000000006C0000-0x0000000000708000-memory.dmp	family_onlylogger
behavioral2/memory/3192-3-0x0000000000400000-0x000000000046C000-memory.dmp	family_onlylogger
behavioral2/memory/3192-4-0x0000000000400000-0x000000000046C000-memory.dmp	family_onlylogger
behavioral2/memory/3192-5-0x00000000006C0000-0x0000000000708000-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-1-5-21-2177723727-746291240-1644359950-1000\Control Panel\International\Geo\Nation	fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 7 IoCs

pid	pid_target	Process	procid_target
5044	3192	WerFault.exe	83
4420	3192	WerFault.exe	83
3656	3192	WerFault.exe	83
1772	3192	WerFault.exe	83
1336	3192	WerFault.exe	83
4000	3192	WerFault.exe	83
4604	3192	WerFault.exe	83

Kills process with taskkill 1 IoCs

evasion

pid	Process
3888	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3888	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3192 wrote to memory of 2180	3192	fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe	102
PID 3192 wrote to memory of 2180	3192	fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe	102
PID 3192 wrote to memory of 2180	3192	fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe	102
PID 2180 wrote to memory of 3888	2180	cmd.exe	106
PID 2180 wrote to memory of 3888	2180	cmd.exe	106
PID 2180 wrote to memory of 3888	2180	cmd.exe	106

C:\Users\Admin\AppData\Local\Temp\fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3192
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 736
  2⤵
  - Program crash
  PID:5044
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 804
  2⤵
  - Program crash
  PID:4420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 928
  2⤵
  - Program crash
  PID:3656
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 916
  2⤵
  - Program crash
  PID:1772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 916
  2⤵
  - Program crash
  PID:1336
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 960
  2⤵
  - Program crash
  PID:4000
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2180
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "fa9f2c2ac3880b8e36473957125095b9_JaffaCakes118.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:3888
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3192 -s 760
  2⤵
  - Program crash
  PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 3192 -ip 3192
1⤵
PID:64

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3192 -ip 3192
1⤵
PID:4608

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3192 -ip 3192
1⤵
PID:4808

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 3192 -ip 3192
1⤵
PID:968

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3192 -ip 3192
1⤵
PID:3428

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 600 -p 3192 -ip 3192
1⤵
PID:1804

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 596 -p 3192 -ip 3192
1⤵
PID:4984

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

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Downloads

memory/3192-1-0x00000000004B0000-0x00000000005B0000-memory.dmp

Filesize
1024KB

Download
memory/3192-2-0x00000000006C0000-0x0000000000708000-memory.dmp

Filesize
288KB

Download
memory/3192-3-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/3192-4-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/3192-5-0x00000000006C0000-0x0000000000708000-memory.dmp

Filesize
288KB

Download

Analysis

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