gcleaner | fa83eba7e3b3197c422823db67eb3ce509293eda358b29536cec627aa424865c

General

Target

b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe
Size

339KB
MD5

b7d610ea84da74ede9f9dfeab88f8475
SHA1

852d7c21e13e6fa5fc2a58941d926af734e02959
SHA256

fa83eba7e3b3197c422823db67eb3ce509293eda358b29536cec627aa424865c
SHA512

4f2270efc792598c1f21f0d44840ca6cdcfe7757a6e3d938db2e10689a216cbe5f49a32ec54ad416669a04d8ade92e38511533be90090d964f46df1adb16abfa
SSDEEP

6144:6H79ve/t8CucAkoJNNABqA3dg23C5IPTOphn7B4FjKiSM+Xb:6H79veiCunjNctggCqqpd9UH7

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

resource	yara_rule
behavioral2/memory/780-2-0x0000000000E60000-0x0000000000EA8000-memory.dmp	family_onlylogger
behavioral2/memory/780-3-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/780-6-0x0000000000400000-0x000000000044B000-memory.dmp	family_onlylogger
behavioral2/memory/780-5-0x0000000000E60000-0x0000000000EA8000-memory.dmp	family_onlylogger
behavioral2/memory/780-4-0x0000000000400000-0x0000000000885000-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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe

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

System Information Discovery
T1082

Program crash 6 IoCs

pid	pid_target	Process	procid_target
2480	780	WerFault.exe	82
2996	780	WerFault.exe	82
2180	780	WerFault.exe	82
1636	780	WerFault.exe	82
2668	780	WerFault.exe	82
5100	780	WerFault.exe	82

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4800	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4800	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 780 wrote to memory of 1852	780	b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe	103
PID 780 wrote to memory of 1852	780	b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe	103
PID 780 wrote to memory of 1852	780	b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe	103
PID 1852 wrote to memory of 4800	1852	cmd.exe	105
PID 1852 wrote to memory of 4800	1852	cmd.exe	105
PID 1852 wrote to memory of 4800	1852	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:780
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 736
  2⤵
  - Program crash
  PID:2480
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 784
  2⤵
  - Program crash
  PID:2996
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 792
  2⤵
  - Program crash
  PID:2180
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 776
  2⤵
  - Program crash
  PID:1636
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 792
  2⤵
  - Program crash
  PID:2668
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 780 -s 976
  2⤵
  - Program crash
  PID:5100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1852
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "b7d610ea84da74ede9f9dfeab88f8475_JaffaCakes118.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4800

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 780 -ip 780
1⤵
PID:4740

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 780 -ip 780
1⤵
PID:3096

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 500 -p 780 -ip 780
1⤵
PID:4936

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 780 -ip 780
1⤵
PID:3932

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 780 -ip 780
1⤵
PID:3996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 780 -ip 780
1⤵
PID:2588

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

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Downloads

memory/780-1-0x0000000000A30000-0x0000000000B30000-memory.dmp

Filesize
1024KB

Download
memory/780-2-0x0000000000E60000-0x0000000000EA8000-memory.dmp

Filesize
288KB

Download
memory/780-3-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/780-6-0x0000000000400000-0x000000000044B000-memory.dmp

Filesize
300KB

Download
memory/780-5-0x0000000000E60000-0x0000000000EA8000-memory.dmp

Filesize
288KB

Download
memory/780-4-0x0000000000400000-0x0000000000885000-memory.dmp

Filesize
4.5MB

Download

Analysis

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