gcleaner | 4e8157b371ab0a9cd7eaba33a329ea684b22527a4a4e83e57c81e54847b837d9

Analysis

max time kernel
149s
max time network
126s
platform
windows11-21h2_x64
resource
win11-20251229-en
resource tags

arch:x64arch:x86image:win11-20251229-enlocale:en-usos:windows11-21h2-x64system
submitted
26/01/2026, 21:56

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General

Target
file.exe
Size 817KB
Sample260126-1te8raby8d
SHA256 4e8157b371ab0a9cd7eaba33a329ea684b22527a4a4e83e57c81e54847b837d9
MD5 a8663c181a5d19364bfdb6385ea8cb4e
SHA1 0c259aa037a686f9698262242f0508947e41df26
SHA512 99ff301cb92463f1adc68961339a93d6220cfd6b9775a93756b8ea5744f07171ee0d09cb96b7644edf793ff967c070e1d32a0ac290d3af3743aa2c61cc18232a
SSDEEP 12288:nWxa7+IlSRsrHxyG5HaBtW6N3jU4auCRccGG:WwvlPt3AHBDoRc
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

discovery gcleaner loader

Malware Config

Signatures

GCleaner
GCleaner is a Pay-Per-Install malware loader first discovered in early 2019.
loader gcleaner
Gcleaner family
gcleaner

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 4896 created 2796	4896	file.exe	51

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4896 set thread context of 4736	4896	file.exe	77

System Location Discovery: System Language Discovery 1 TTPs 2 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	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4896	file.exe
4896	file.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4896 wrote to memory of 4736	4896	file.exe	77
PID 4896 wrote to memory of 4736	4896	file.exe	77
PID 4896 wrote to memory of 4736	4896	file.exe	77
PID 4896 wrote to memory of 4736	4896	file.exe	77
PID 4896 wrote to memory of 4736	4896	file.exe	77
PID 4896 wrote to memory of 4736	4896	file.exe	77
PID 4896 wrote to memory of 4736	4896	file.exe	77

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:2796
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:4896
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4736

Network

MITRE ATT&CK Enterprise v16

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/4736-9-0x00000000012D0000-0x00000000012F9000-memory.dmp

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memory/4736-10-0x00000000012D0000-0x00000000012F9000-memory.dmp

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memory/4736-8-0x00000000012D0000-0x00000000012F9000-memory.dmp

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memory/4736-12-0x00000000012D0000-0x00000000012F9000-memory.dmp

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memory/4736-7-0x00000000012D0000-0x00000000012F9000-memory.dmp

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memory/4736-6-0x00000000012D0000-0x00000000012F9000-memory.dmp

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memory/4736-5-0x00000000012C0000-0x00000000012C1000-memory.dmp

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memory/4896-0-0x0000000002370000-0x0000000002371000-memory.dmp

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memory/4896-1-0x0000000000462000-0x0000000000463000-memory.dmp

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memory/4896-2-0x00000000023A0000-0x00000000023A1000-memory.dmp

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memory/4896-3-0x0000000000400000-0x00000000004D2000-memory.dmp

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memory/4896-4-0x00000000025A0000-0x00000000025C5000-memory.dmp

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