gcleaner | a8a39400f62a9033bc9c447cca7c5b69a66555fbfe5913a5d773503d9f1cad9b

Analysis

max time kernel
121s
max time network
123s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
06/01/2025, 16:38

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General

Target

JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe
Size

433KB
MD5

2ea682eee8468fdee8f1361934625225
SHA1

264c0d6f5722df8f4480ffd14a89ea8a982bfe3e
SHA256

a8a39400f62a9033bc9c447cca7c5b69a66555fbfe5913a5d773503d9f1cad9b
SHA512

d17b8c12b52b970b0295339b8348820743f4729adbd8101b06dbd307b307ecb550778d22a88393cccf2a8e36f822af1319a050ff8c8ba4042a2cd765bb1cfdc4
SSDEEP

12288:vbRN4YywAwR2TlHAqNiw18kPKlGR0zp4U:v9N4/wR2hDekPcGR8

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 4 IoCs

resource	yara_rule
behavioral1/memory/1712-2-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/1712-4-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/1712-5-0x0000000000400000-0x000000000089B000-memory.dmp	family_onlylogger
behavioral1/memory/1712-3-0x0000000000400000-0x000000000089B000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

pid	Process
2140	cmd.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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	JaffaCakes118_2ea682eee8468fdee8f1361934625225.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
888	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	888	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 2140	1712	JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe	30
PID 1712 wrote to memory of 2140	1712	JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe	30
PID 1712 wrote to memory of 2140	1712	JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe	30
PID 1712 wrote to memory of 2140	1712	JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe	30
PID 2140 wrote to memory of 888	2140	cmd.exe	32
PID 2140 wrote to memory of 888	2140	cmd.exe	32
PID 2140 wrote to memory of 888	2140	cmd.exe	32
PID 2140 wrote to memory of 888	2140	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2140
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_2ea682eee8468fdee8f1361934625225.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1712-1-0x0000000000A00000-0x0000000000B00000-memory.dmp

Filesize
1024KB

Download
memory/1712-2-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1712-4-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/1712-5-0x0000000000400000-0x000000000089B000-memory.dmp

Filesize
4.6MB

Download
memory/1712-3-0x0000000000400000-0x000000000089B000-memory.dmp

Filesize
4.6MB

Download
memory/1712-6-0x0000000000400000-0x000000000089B000-memory.dmp

Filesize
4.6MB

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