gcleaner | 9db74178d1441af7488bef5d9f4d0defb036d7db60a90a034f9119e0d9021c7c

General

Target

ec884a36d0759ffcaa1f91e11b500d9e_JaffaCakes118.exe
Size

425KB
MD5

ec884a36d0759ffcaa1f91e11b500d9e
SHA1

60da167fabcdf85b0c9ffccfbc87b82d0054d3d6
SHA256

9db74178d1441af7488bef5d9f4d0defb036d7db60a90a034f9119e0d9021c7c
SHA512

1326f2bc35abb2b2b24ab2b6a8e5de6e080798ac0cf8e522f3be2c842dfc486548c582166bba60ad7c941d0ec4a85c5a30a0433fe9c53e4f61ebe64acaf3df2e
SSDEEP

6144:XZrkNzk+HbYGLSIl9q1UeU5V5rZNCaURt+UiFkc5hvhpizTWF+/2GjiHhkJHTE1b:1kZV7FLSIl9yI5V5KaB5hazFXpTEB

Score

10^/10

gcleaner onlylogger loader

Malware Config

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/840-2-0x00000000009F0000-0x0000000000A3F000-memory.dmp	family_onlylogger
behavioral2/memory/840-3-0x0000000000400000-0x0000000000920000-memory.dmp	family_onlylogger
behavioral2/memory/840-5-0x0000000000400000-0x0000000000920000-memory.dmp	family_onlylogger
behavioral2/memory/840-6-0x00000000009F0000-0x0000000000A3F000-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-1-5-21-557049126-2506969350-2798870634-1000\Control Panel\International\Geo\Nation	ec884a36d0759ffcaa1f91e11b500d9e_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
1436	840	WerFault.exe	83
4480	840	WerFault.exe	83
3616	840	WerFault.exe	83
1452	840	WerFault.exe	83
4540	840	WerFault.exe	83
2912	840	WerFault.exe	83
2920	840	WerFault.exe	83

Kills process with taskkill 1 IoCs

evasion

pid	Process
2752	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2752	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 2344	840	ec884a36d0759ffcaa1f91e11b500d9e_JaffaCakes118.exe	102
PID 840 wrote to memory of 2344	840	ec884a36d0759ffcaa1f91e11b500d9e_JaffaCakes118.exe	102
PID 840 wrote to memory of 2344	840	ec884a36d0759ffcaa1f91e11b500d9e_JaffaCakes118.exe	102
PID 2344 wrote to memory of 2752	2344	cmd.exe	105
PID 2344 wrote to memory of 2752	2344	cmd.exe	105
PID 2344 wrote to memory of 2752	2344	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\ec884a36d0759ffcaa1f91e11b500d9e_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\ec884a36d0759ffcaa1f91e11b500d9e_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:840
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 732
  2⤵
  - Program crash
  PID:1436
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 784
  2⤵
  - Program crash
  PID:4480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 792
  2⤵
  - Program crash
  PID:3616
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 740
  2⤵
  - Program crash
  PID:1452
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 740
  2⤵
  - Program crash
  PID:4540
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 968
  2⤵
  - Program crash
  PID:2912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "ec884a36d0759ffcaa1f91e11b500d9e_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\ec884a36d0759ffcaa1f91e11b500d9e_JaffaCakes118.exe" & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2344
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "ec884a36d0759ffcaa1f91e11b500d9e_JaffaCakes118.exe" /f
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 840 -s 1004
  2⤵
  - Program crash
  PID:2920

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 840 -ip 840
1⤵
PID:4224

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 840 -ip 840
1⤵
PID:5048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 840 -ip 840
1⤵
PID:3980

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 840 -ip 840
1⤵
PID:1048

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 840 -ip 840
1⤵
PID:2432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 840 -ip 840
1⤵
PID:5088

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 840 -ip 840
1⤵
PID:4528

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/840-1-0x0000000000C80000-0x0000000000D80000-memory.dmp

Filesize
1024KB

Download
memory/840-2-0x00000000009F0000-0x0000000000A3F000-memory.dmp

Filesize
316KB

Download
memory/840-3-0x0000000000400000-0x0000000000920000-memory.dmp

Filesize
5.1MB

Download
memory/840-5-0x0000000000400000-0x0000000000920000-memory.dmp

Filesize
5.1MB

Download
memory/840-6-0x00000000009F0000-0x0000000000A3F000-memory.dmp

Filesize
316KB

Download

Analysis

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