gcleaner | 3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8

General

Target

5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe
Size

231KB
MD5

5cb1e75311bd45338d7c3daff1d841f2
SHA1

460b6a6a4231419e241b6c82143cf763695d9116
SHA256

3f70e988489df0e7eb8ff80460ad88e76464568113a451b8dd5bff16e39999c8
SHA512

96cdf98c78633319a3874f958a7c79944ecc9c6eb8e854df96503ebf645ecb391236f72312fa3bf61528997162c59b1ff5b5d3e9dc2949e2c5c7cc1954cce57d
SSDEEP

3072:9s9ACsqizZSKeysSle1FtGYkvDG0qG/0Bq3Vw7GiDA4h56e:e96blIEY6Jn/zeGi89

Score

10^/10

gcleaner onlylogger loader

Malware Config

Extracted

Family

gcleaner

C2

gc-partners.in

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

OnlyLogger payload 4 IoCs

resource	yara_rule
behavioral2/memory/3252-2-0x0000000001080000-0x00000000010C6000-memory.dmp	family_onlylogger
behavioral2/memory/3252-3-0x0000000000400000-0x0000000000449000-memory.dmp	family_onlylogger
behavioral2/memory/3252-5-0x0000000000400000-0x0000000000449000-memory.dmp	family_onlylogger
behavioral2/memory/3252-4-0x0000000000400000-0x0000000000F97000-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-1-5-21-4018855536-2201274732-320770143-1000\Control Panel\International\Geo\Nation	5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe

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

System Information Discovery
T1082

Program crash 8 IoCs

pid	pid_target	Process	procid_target
2876	3252	WerFault.exe	81
832	3252	WerFault.exe	81
2092	3252	WerFault.exe	81
1060	3252	WerFault.exe	81
4160	3252	WerFault.exe	81
4080	3252	WerFault.exe	81
3704	3252	WerFault.exe	81
4528	3252	WerFault.exe	81

Kills process with taskkill 1 IoCs

evasion

pid	Process
1464	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1464	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3252 wrote to memory of 4676	3252	5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe	110
PID 3252 wrote to memory of 4676	3252	5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe	110
PID 3252 wrote to memory of 4676	3252	5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe	110
PID 4676 wrote to memory of 1464	4676	cmd.exe	114
PID 4676 wrote to memory of 1464	4676	cmd.exe	114
PID 4676 wrote to memory of 1464	4676	cmd.exe	114

C:\Users\Admin\AppData\Local\Temp\5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3252
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 612
  2⤵
  - Program crash
  PID:2876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 632
  2⤵
  - Program crash
  PID:832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 640
  2⤵
  - Program crash
  PID:2092
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 576
  2⤵
  - Program crash
  PID:1060
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 852
  2⤵
  - Program crash
  PID:4160
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 1196
  2⤵
  - Program crash
  PID:4080
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 1220
  2⤵
  - Program crash
  PID:3704
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4676
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "5cb1e75311bd45338d7c3daff1d841f2_JaffaCakes118.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1464
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3252 -s 1080
  2⤵
  - Program crash
  PID:4528

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3252 -ip 3252
1⤵
PID:3416

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3252 -ip 3252
1⤵
PID:3332

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3252 -ip 3252
1⤵
PID:2580

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3252 -ip 3252
1⤵
PID:1980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 3252 -ip 3252
1⤵
PID:3468

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3252 -ip 3252
1⤵
PID:3216

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 3252 -ip 3252
1⤵
PID:3504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 3252 -ip 3252
1⤵
PID:5076

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/3252-2-0x0000000001080000-0x00000000010C6000-memory.dmp

Filesize
280KB

Download
memory/3252-3-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/3252-1-0x0000000001180000-0x0000000001280000-memory.dmp

Filesize
1024KB

Download
memory/3252-5-0x0000000000400000-0x0000000000449000-memory.dmp

Filesize
292KB

Download
memory/3252-4-0x0000000000400000-0x0000000000F97000-memory.dmp

Filesize
11.6MB

Download

Analysis

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