gcleaner | c13ecbd3925ff79e202fa6a09e2dbab7efc52470e72d15e16aed8319767950f7

General

Target

7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe
Size

398KB
MD5

7f660b3298f73735b2ed7872f1441ccd
SHA1

91f1a81fc50b6de12a3d1f2c2979d8361257ffaf
SHA256

c13ecbd3925ff79e202fa6a09e2dbab7efc52470e72d15e16aed8319767950f7
SHA512

723194a9fe300d1606d51db8014e1444b0605d0d02cb990f292e878f1250f4bd8a748d1d2dc1759f73eebc3311ae696d9b7f34e6cc542f31b5c129e57e949dbf
SSDEEP

6144:WNGIZN+uTOGcz91LArlBLwqTYwoIWUM0qJL6vOOhxxdeTr/ekI:TuTOX918RBLwgOIW9L6Tzxd6L

Score

10^/10

gcleaner onlylogger discovery loader

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
Gcleaner family
gcleaner
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger
Onlylogger family
onlylogger

OnlyLogger payload 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4420-2-0x0000000000540000-0x0000000000588000-memory.dmp	family_onlylogger
behavioral2/memory/4420-3-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/4420-4-0x0000000000400000-0x0000000000470000-memory.dmp	family_onlylogger
behavioral2/memory/4420-6-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/4420-5-0x0000000000540000-0x0000000000588000-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

Processes:

7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	7f660b3298f73735b2ed7872f1441ccd_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

Processes:

WerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exeWerFault.exe

pid	pid_target	process	target process
1560	4420	WerFault.exe	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe
3200	4420	WerFault.exe	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe
976	4420	WerFault.exe	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe
2724	4420	WerFault.exe	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe
3772	4420	WerFault.exe	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe
4640	4420	WerFault.exe	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe
1656	4420	WerFault.exe	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.execmd.exetaskkill.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1960 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1960 taskkill.exe

pid	process
1960	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1960	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.execmd.exe

description	pid	process	target process
PID 4420 wrote to memory of 3828	4420	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe	cmd.exe
PID 4420 wrote to memory of 3828	4420	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe	cmd.exe
PID 4420 wrote to memory of 3828	4420	7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe	cmd.exe
PID 3828 wrote to memory of 1960	3828	cmd.exe	taskkill.exe
PID 3828 wrote to memory of 1960	3828	cmd.exe	taskkill.exe
PID 3828 wrote to memory of 1960	3828	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 696
  2⤵
  - Program crash
  PID:1560
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 760
  2⤵
  - Program crash
  PID:3200
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 920
  2⤵
  - Program crash
  PID:976
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 924
  2⤵
  - Program crash
  PID:2724
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 936
  2⤵
  - Program crash
  PID:3772
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 948
  2⤵
  - Program crash
  PID:4640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3828
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "7f660b3298f73735b2ed7872f1441ccd_JaffaCakes118.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1960
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4420 -s 1008
  2⤵
  - Program crash
  PID:1656

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4420 -ip 4420
1⤵
PID:1096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4420 -ip 4420
1⤵
PID:3684

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 4420 -ip 4420
1⤵
PID:1500

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4420 -ip 4420
1⤵
PID:4972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4420 -ip 4420
1⤵
PID:1740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4420 -ip 4420
1⤵
PID:4188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4420 -ip 4420
1⤵
PID:2428

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/4420-1-0x0000000000730000-0x0000000000830000-memory.dmp

Filesize
1024KB

Download
memory/4420-2-0x0000000000540000-0x0000000000588000-memory.dmp

Filesize
288KB

Download
memory/4420-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4420-4-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/4420-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/4420-5-0x0000000000540000-0x0000000000588000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads