gcleaner | d8e9dc3d146b15aeb76bae6ea7909562e44169646cbcd65df0c1c406956b4d44

Analysis

max time kernel
149s
max time network
130s
platform
windows11-21h2_x64
resource
win11-20251211-en
resource tags

arch:x64arch:x86image:win11-20251211-enlocale:en-usos:windows11-21h2-x64system
submitted
15/12/2025, 10:38

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General

Target
a071dc8e005c6c14f99c9e0cac3ac29c.exe
Size 4.2MB
Sample251215-mpxeksvlam
SHA256 d8e9dc3d146b15aeb76bae6ea7909562e44169646cbcd65df0c1c406956b4d44
MD5 a071dc8e005c6c14f99c9e0cac3ac29c
SHA1 2631a00f6690c5fb4bc61584514ec0686441be5e
SHA512 243bc3e50186d3490cac7cddee3eef0ae7842766e2ede13544822e579c5615c295ace280ca4f622f873e0c2b424483dcc7eafa11150e9d0710d4fce3061a5379
SSDEEP 49152:IKc9bcI3QlXbEE2zk+cDDH7s3qwaCDdo3cmTvlYow6xm1XKRjNCUYCNhSh3H:I/9AbeAXQ15SlYwK6xNhgX
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

discovery gcleaner loader

Malware Config

Extracted

Family

gcleaner

185.156.73.98

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
4732	svchost015.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4800 set thread context of 4732	4800	a071dc8e005c6c14f99c9e0cac3ac29c.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	a071dc8e005c6c14f99c9e0cac3ac29c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost015.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 4732	4800	a071dc8e005c6c14f99c9e0cac3ac29c.exe	77
PID 4800 wrote to memory of 4732	4800	a071dc8e005c6c14f99c9e0cac3ac29c.exe	77
PID 4800 wrote to memory of 4732	4800	a071dc8e005c6c14f99c9e0cac3ac29c.exe	77
PID 4800 wrote to memory of 4732	4800	a071dc8e005c6c14f99c9e0cac3ac29c.exe	77
PID 4800 wrote to memory of 4732	4800	a071dc8e005c6c14f99c9e0cac3ac29c.exe	77
PID 4800 wrote to memory of 4732	4800	a071dc8e005c6c14f99c9e0cac3ac29c.exe	77
PID 4800 wrote to memory of 4732	4800	a071dc8e005c6c14f99c9e0cac3ac29c.exe	77

C:\Users\Admin\AppData\Local\Temp\a071dc8e005c6c14f99c9e0cac3ac29c.exe
"C:\Users\Admin\AppData\Local\Temp\a071dc8e005c6c14f99c9e0cac3ac29c.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4800
- C:\Users\Admin\AppData\Local\Temp\svchost015.exe
  "C:\Users\Admin\AppData\Local\Temp\a071dc8e005c6c14f99c9e0cac3ac29c.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:4732

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

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Downloads

service[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\Y6714MXA\service[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

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svchost015.exe

Path C:\Users\Admin\AppData\Local\Temp\svchost015.exe
Size 2.9MB
SHA256 7824b50acdd144764dac7445a4067b35cf0fef619e451045ab6c1f54f5653a5b
MD5 b826dd92d78ea2526e465a34324ebeea
SHA1 bf8a0093acfd2eb93c102e1a5745fb080575372e
SHA512 1ac4b731b9b31cabf3b1c43aee37206aee5326c8e786abe2ab38e031633b778f97f2d6545cf745c3066f3bd47b7aaf2ded2f9955475428100eaf271dd9aeef17
SSDEEP 49152:/INqIwJA7BYAzLOhHpB63X4oQaM35DhnSYf7bPZcYsO5+th1:wNqC7BZEHSQz5DhnSy7ujL
MD5 SHA1 SHA512 SSDEEP

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memory/4732-5-0x00000000000D0000-0x00000000000D1000-memory.dmp

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memory/4732-15-0x00000000000E0000-0x0000000000109000-memory.dmp

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memory/4732-9-0x00000000000E0000-0x0000000000109000-memory.dmp

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memory/4732-8-0x00000000000E0000-0x0000000000109000-memory.dmp

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memory/4732-7-0x00000000000E0000-0x0000000000109000-memory.dmp

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memory/4732-6-0x00000000000E0000-0x0000000000109000-memory.dmp

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memory/4732-10-0x00000000000E0000-0x0000000000109000-memory.dmp

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memory/4800-0-0x00000000026E0000-0x00000000026E1000-memory.dmp

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memory/4800-1-0x0000000000480000-0x0000000000481000-memory.dmp

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memory/4800-3-0x0000000000400000-0x0000000000832000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads