gcleaner | 9bae7ac9a2137a2ee80c91bdec7cf9e475a2c9e7822b1a2c63a63516cf00733d

Analysis

max time kernel
136s
max time network
126s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22-08-2024 00:51

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General

Target

b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe
Size

386KB
MD5

b5b72dd8278704a788474db8f2f49ded
SHA1

86e29037f5340e11c4ccd82f87ba63078478f8fe
SHA256

9bae7ac9a2137a2ee80c91bdec7cf9e475a2c9e7822b1a2c63a63516cf00733d
SHA512

cde580116165fa59ff82e979c09588af16984896b85c225c19cf2c58212f0e8c498918b9ed71954f3d84b6163fd7f0513bbe5dd28463aac906946aac6830bfcf
SSDEEP

12288:TtJluZ+meKuRmj6E+hlYLyCRTG99vOKUol:jUQkEPYL1W5Oe

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

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/2756-2-0x0000000002BE0000-0x0000000002C2C000-memory.dmp	family_onlylogger
behavioral2/memory/2756-3-0x0000000000400000-0x000000000044F000-memory.dmp	family_onlylogger
behavioral2/memory/2756-6-0x0000000000400000-0x000000000044F000-memory.dmp	family_onlylogger
behavioral2/memory/2756-5-0x0000000002BE0000-0x0000000002C2C000-memory.dmp	family_onlylogger
behavioral2/memory/2756-4-0x0000000000400000-0x0000000002BD6000-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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4364	2756	WerFault.exe	83

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	b5b72dd8278704a788474db8f2f49ded_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

pid	Process
1484	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1484	taskkill.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2756 wrote to memory of 1556	2756	b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe	91
PID 2756 wrote to memory of 1556	2756	b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe	91
PID 2756 wrote to memory of 1556	2756	b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe	91
PID 1556 wrote to memory of 1484	1556	cmd.exe	95
PID 1556 wrote to memory of 1484	1556	cmd.exe	95
PID 1556 wrote to memory of 1484	1556	cmd.exe	95

C:\Users\Admin\AppData\Local\Temp\b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1556
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "b5b72dd8278704a788474db8f2f49ded_JaffaCakes118.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:1484
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 1268
  2⤵
  - Program crash
  PID:4364

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2756 -ip 2756
1⤵
PID:1252

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2756-1-0x0000000002D20000-0x0000000002E20000-memory.dmp

Filesize
1024KB

Download
memory/2756-2-0x0000000002BE0000-0x0000000002C2C000-memory.dmp

Filesize
304KB

Download
memory/2756-3-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2756-6-0x0000000000400000-0x000000000044F000-memory.dmp

Filesize
316KB

Download
memory/2756-5-0x0000000002BE0000-0x0000000002C2C000-memory.dmp

Filesize
304KB

Download
memory/2756-4-0x0000000000400000-0x0000000002BD6000-memory.dmp

Filesize
39.8MB

Download