gcleaner | 7c978fad574a7cd3d8559b5903e7b70fbcd890d06a86a851a3c0514a2db10bb8

General

Target

26515120e283a959ae2076bbf0b93048_JaffaCakes118.exe
Size

383KB
MD5

26515120e283a959ae2076bbf0b93048
SHA1

33e339fce6d51584f78c849f6e9d754aa6c565b2
SHA256

7c978fad574a7cd3d8559b5903e7b70fbcd890d06a86a851a3c0514a2db10bb8
SHA512

bef21b38bb8ac6a7b45e5bc837138bedf2fda1e1f6d55fbed721b3e583e26ecbb44de440fc885a92bfaca8a6e7375090442dbc649d27af6fa1ec099a5bc79a6a
SSDEEP

6144:bzZ8p0KIafZG+fHeDcsl+L2X82H8d2jgq3CtyYZPuvAk6fxUOs3vCCC:bK0KIy0U+Dcs8odtgt5hVf+Os3K

Score

10^/10

gcleaner onlylogger loader

Malware Config

Extracted

Family

gcleaner

C2

gcleaner.pro

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 5 IoCs

resource	yara_rule
behavioral2/memory/4004-2-0x0000000002BF0000-0x0000000002C3C000-memory.dmp	family_onlylogger
behavioral2/memory/4004-3-0x0000000000400000-0x000000000044F000-memory.dmp	family_onlylogger
behavioral2/memory/4004-5-0x0000000002BF0000-0x0000000002C3C000-memory.dmp	family_onlylogger
behavioral2/memory/4004-6-0x0000000000400000-0x000000000044F000-memory.dmp	family_onlylogger
behavioral2/memory/4004-4-0x0000000000400000-0x0000000002B01000-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-1-5-21-3642458265-1901903390-453309326-1000\Control Panel\International\Geo\Nation	26515120e283a959ae2076bbf0b93048_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
1736	4004	WerFault.exe	80
1548	4004	WerFault.exe	80
4884	4004	WerFault.exe	80
2020	4004	WerFault.exe	80
2948	4004	WerFault.exe	80
2988	4004	WerFault.exe	80
4672	4004	WerFault.exe	80
4344	4004	WerFault.exe	80

Kills process with taskkill 1 IoCs

evasion

pid	Process
832	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	832	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4004 wrote to memory of 4052	4004	26515120e283a959ae2076bbf0b93048_JaffaCakes118.exe	98
PID 4004 wrote to memory of 4052	4004	26515120e283a959ae2076bbf0b93048_JaffaCakes118.exe	98
PID 4004 wrote to memory of 4052	4004	26515120e283a959ae2076bbf0b93048_JaffaCakes118.exe	98
PID 4052 wrote to memory of 832	4052	cmd.exe	102
PID 4052 wrote to memory of 832	4052	cmd.exe	102
PID 4052 wrote to memory of 832	4052	cmd.exe	102

C:\Users\Admin\AppData\Local\Temp\26515120e283a959ae2076bbf0b93048_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\26515120e283a959ae2076bbf0b93048_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4004
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 612
  2⤵
  - Program crash
  PID:1736
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 632
  2⤵
  - Program crash
  PID:1548
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 740
  2⤵
  - Program crash
  PID:4884
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 784
  2⤵
  - Program crash
  PID:2020
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 832
  2⤵
  - Program crash
  PID:2948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 1212
  2⤵
  - Program crash
  PID:2988
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 1240
  2⤵
  - Program crash
  PID:4672
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "26515120e283a959ae2076bbf0b93048_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\26515120e283a959ae2076bbf0b93048_JaffaCakes118.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4052
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "26515120e283a959ae2076bbf0b93048_JaffaCakes118.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:832
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4004 -s 1252
  2⤵
  - Program crash
  PID:4344

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 4004 -ip 4004
1⤵
PID:4836

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 4004 -ip 4004
1⤵
PID:1572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 4004 -ip 4004
1⤵
PID:940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4004 -ip 4004
1⤵
PID:1732

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 4004 -ip 4004
1⤵
PID:3188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 4004 -ip 4004
1⤵
PID:4944

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4004 -ip 4004
1⤵
PID:4316

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 572 -p 4004 -ip 4004
1⤵
PID:3096

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/4004-1-0x0000000002CF0000-0x0000000002DF0000-memory.dmp

Filesize
1024KB

Download
memory/4004-2-0x0000000002BF0000-0x0000000002C3C000-memory.dmp

Filesize
304KB

Download
memory/4004-3-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4004-5-0x0000000002BF0000-0x0000000002C3C000-memory.dmp

Filesize
304KB

Download
memory/4004-6-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/4004-4-0x0000000000400000-0x0000000002B01000-memory.dmp

Filesize
39.0MB

Download

Analysis

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