gcleaner | 6828b9d506d4ebece654b79050798e70bea948ff5c017ce06c673ee464c7a990

General

Target

4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe
Size

398KB
MD5

4627cc7a8efa641992b35e467b5352b9
SHA1

aa1820a250038565e356946934aa462e400da53a
SHA256

6828b9d506d4ebece654b79050798e70bea948ff5c017ce06c673ee464c7a990
SHA512

9e19e978dd619a856499f4625e6809ec1d2b8e11df8f08f16dd4efde8bc2ff576774b48436f16df9a0460915037e53216611c46ec5a4ba1d5af497282fc549a5
SSDEEP

6144:b0JIZDyLev6ghkpc0jWW9/78epUpYeGnpyqJL638wOOhxxdeTr/ekI:7yLev6gL0b/YOgYdn1L6Tzxd6L

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
OnlyLogger
A tiny loader that uses IPLogger to get its payload.
loader onlylogger

OnlyLogger payload 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2040-2-0x0000000000470000-0x00000000004B8000-memory.dmp	family_onlylogger
behavioral2/memory/2040-3-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/2040-4-0x0000000000400000-0x0000000000470000-memory.dmp	family_onlylogger
behavioral2/memory/2040-6-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/2040-5-0x0000000000470000-0x00000000004B8000-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:

4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	4627cc7a8efa641992b35e467b5352b9_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
4824	2040	WerFault.exe	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe
1784	2040	WerFault.exe	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe
2304	2040	WerFault.exe	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe
1704	2040	WerFault.exe	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe
4752	2040	WerFault.exe	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe
1052	2040	WerFault.exe	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe
748	2040	WerFault.exe	4627cc7a8efa641992b35e467b5352b9_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:

taskkill.exe4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Kills process with taskkill 1 IoCs
evasion

Processes:

taskkill.exe

pid process

1196 taskkill.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

taskkill.exe

description pid process

Token: SeDebugPrivilege 1196 taskkill.exe

pid	process
1196	taskkill.exe

description	pid	process
Token: SeDebugPrivilege	1196	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.execmd.exe

description	pid	process	target process
PID 2040 wrote to memory of 4300	2040	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 4300	2040	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe	cmd.exe
PID 2040 wrote to memory of 4300	2040	4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe	cmd.exe
PID 4300 wrote to memory of 1196	4300	cmd.exe	taskkill.exe
PID 4300 wrote to memory of 1196	4300	cmd.exe	taskkill.exe
PID 4300 wrote to memory of 1196	4300	cmd.exe	taskkill.exe

C:\Users\Admin\AppData\Local\Temp\4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2040
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 688
  2⤵
  - Program crash
  PID:4824
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 784
  2⤵
  - Program crash
  PID:1784
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 928
  2⤵
  - Program crash
  PID:2304
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 764
  2⤵
  - Program crash
  PID:1704
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 916
  2⤵
  - Program crash
  PID:4752
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 968
  2⤵
  - Program crash
  PID:1052
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4300
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "4627cc7a8efa641992b35e467b5352b9_JaffaCakes118.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1196
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 1128
  2⤵
  - Program crash
  PID:748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2040 -ip 2040
1⤵
PID:3924

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 2040 -ip 2040
1⤵
PID:940

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2040 -ip 2040
1⤵
PID:4520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 2040 -ip 2040
1⤵
PID:4588

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 180 -p 2040 -ip 2040
1⤵
PID:4648

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 2040 -ip 2040
1⤵
PID:624

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2040 -ip 2040
1⤵
PID:4920

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

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Downloads

memory/2040-1-0x00000000006F0000-0x00000000007F0000-memory.dmp

Filesize
1024KB

Download
memory/2040-2-0x0000000000470000-0x00000000004B8000-memory.dmp

Filesize
288KB

Download
memory/2040-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2040-4-0x0000000000400000-0x0000000000470000-memory.dmp

Filesize
448KB

Download
memory/2040-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/2040-5-0x0000000000470000-0x00000000004B8000-memory.dmp

Filesize
288KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads