gcleaner | 29fc9e60d4b92944739c3cef4ad4bb781d4ef4549c1f49a2d33e940bd0f6c62d

Analysis

max time kernel
118s
max time network
118s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
07-01-2025 15:17

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General

Target

JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe
Size

444KB
MD5

6a52bc5eb7167b1b9388750a87a37459
SHA1

08eee7cd20b0bb9d1097357a8bcc877be72c6010
SHA256

29fc9e60d4b92944739c3cef4ad4bb781d4ef4549c1f49a2d33e940bd0f6c62d
SHA512

e3155809ded9a013f7388650a0be5cd2a02d5286287fadaf541aea89926cef68ec0167dd6bdb28634c098c91b7bab3908960ff4eef6efd8b97508f955d05c376
SSDEEP

12288:efdgTBtlvcWmxZ1S9nTQD6erx3fuwBdCnkNTDevWh:eFg9tcXS9cxPuJnkZD

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/2380-2-0x00000000002D0000-0x0000000000319000-memory.dmp	family_onlylogger
behavioral1/memory/2380-3-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2380-5-0x0000000000400000-0x000000000044C000-memory.dmp	family_onlylogger
behavioral1/memory/2380-4-0x0000000000400000-0x000000000089E000-memory.dmp	family_onlylogger

Deletes itself 1 IoCs

pid	Process
2984	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_6a52bc5eb7167b1b9388750a87a37459.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
2388	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2388	taskkill.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2380 wrote to memory of 2984	2380	JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe	30
PID 2380 wrote to memory of 2984	2380	JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe	30
PID 2380 wrote to memory of 2984	2380	JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe	30
PID 2380 wrote to memory of 2984	2380	JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe	30
PID 2984 wrote to memory of 2388	2984	cmd.exe	32
PID 2984 wrote to memory of 2388	2984	cmd.exe	32
PID 2984 wrote to memory of 2388	2984	cmd.exe	32
PID 2984 wrote to memory of 2388	2984	cmd.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2380
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /im "JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe" & exit
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2984
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /im "JaffaCakes118_6a52bc5eb7167b1b9388750a87a37459.exe" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2388

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

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Downloads

memory/2380-2-0x00000000002D0000-0x0000000000319000-memory.dmp

Filesize
292KB

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memory/2380-1-0x0000000000940000-0x0000000000A40000-memory.dmp

Filesize
1024KB

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memory/2380-3-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

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memory/2380-5-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/2380-4-0x0000000000400000-0x000000000089E000-memory.dmp

Filesize
4.6MB

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