gcleaner | 3d3747aa4e6eb4782c1ae5bcb22b736cce54a41a810cd571f9b7eaa34896e9dd

Analysis

max time kernel
117s
max time network
117s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 13:38

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General

Target

JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe
Size

434KB
MD5

660f957f13470d2f9c34713c192920b2
SHA1

07998033267d6a0c8cc6a562c78d9caadaafa918
SHA256

3d3747aa4e6eb4782c1ae5bcb22b736cce54a41a810cd571f9b7eaa34896e9dd
SHA512

7c09911d02ad0d8e05615b80cf228c186b319177beea26e899d5e054f2f35c42187f37b7a5a3d567e3663505aae39f1de274b3be86b1ccf22df2df168ac162cd
SSDEEP

12288:sAo36NmWywy2hqZkuR2eNNhcXwxI7kYEKJFw:sDimTZHcwe7kDqFw

Score

10^/10

gcleaner onlylogger discovery loader

Malware Config

Extracted

Family

gcleaner

gcl-gb.biz

45.9.20.13

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
behavioral1/memory/2004-2-0x00000000001B0000-0x00000000001F9000-memory.dmp	family_onlylogger
behavioral1/memory/2004-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2004-6-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2004-5-0x00000000001B0000-0x00000000001F9000-memory.dmp	family_onlylogger
behavioral1/memory/2004-4-0x0000000000400000-0x000000000089C000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

pid	Process
2228	cmd.exe

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

System Information Discovery
T1082

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	JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
2020	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2020	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2004 wrote to memory of 2228	2004	JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe	30
PID 2004 wrote to memory of 2228	2004	JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe	30
PID 2004 wrote to memory of 2228	2004	JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe	30
PID 2004 wrote to memory of 2228	2004	JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe	30
PID 2228 wrote to memory of 2020	2228	cmd.exe	32
PID 2228 wrote to memory of 2020	2228	cmd.exe	32
PID 2228 wrote to memory of 2020	2228	cmd.exe	32
PID 2228 wrote to memory of 2020	2228	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2004
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2228
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_660f957f13470d2f9c34713c192920b2.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/2004-2-0x00000000001B0000-0x00000000001F9000-memory.dmp

Filesize
292KB

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memory/2004-1-0x00000000002D0000-0x00000000003D0000-memory.dmp

Filesize
1024KB

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memory/2004-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2004-6-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2004-5-0x00000000001B0000-0x00000000001F9000-memory.dmp

Filesize
292KB

Download
memory/2004-4-0x0000000000400000-0x000000000089C000-memory.dmp

Filesize
4.6MB

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