gcleaner | 0d7db567df0c03f033db70107c7699d21fdc046d3b502160e45b6c26a7a5291d

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
17/02/2025, 22:04

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General

Target

quarantine/random_2.exe
Size

3.7MB
MD5

ff29a4631f60ccbe8844522cb56f13d4
SHA1

b6b97814827a755ffc8b519452ccdc2acf2bc702
SHA256

51af8a171cb7c4a6ff8b609de204a24004a1ba6c759e8fb21d5dc1dfc5ab4e49
SHA512

9d14c6dc5469e308fb98be43bb342d8f3acda70e0fd0572bfec21ce88179993ef8bfc28d0b06675d19510b3aaa617de50570015ba345734a331f9850ba484835
SSDEEP

98304:XV+uV1x+LyoyA4NyO/bGbH889uErrLRQ:XVzxkyZBGH3R

Score

10^/10

gcleaner defense_evasion discovery loader

Malware Config

Extracted

Family

gcleaner

185.156.73.73

Signatures

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

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	random_2.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
4	2796	BitLockerToGo.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	random_2.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	random_2.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

defense_evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Wine	random_2.exe

Loads dropped DLL 1 IoCs

pid	Process
2796	BitLockerToGo.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2988	random_2.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2988 set thread context of 2796	2988	random_2.exe	31

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	random_2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	BitLockerToGo.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2988	random_2.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31
PID 2988 wrote to memory of 2796	2988	random_2.exe	31

C:\Users\Admin\AppData\Local\Temp\quarantine\random_2.exe
"C:\Users\Admin\AppData\Local\Temp\quarantine\random_2.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - Downloads MZ/PE file
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\9GP4P3HF\service[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
\Users\Admin\AppData\Local\Temp\EwfeZ7BGrsJe2s2YeJwGvG\Y-Cleaner.exe

Filesize
987KB

MD5
f49d1aaae28b92052e997480c504aa3b

SHA1
a422f6403847405cee6068f3394bb151d8591fb5

SHA256
81e31780a5f2078284b011c720261797eb8dd85e1b95a657dbce7ac31e9df1f0

SHA512
41f715eea031fd8d7d3a22d88e0199277db2f86be73f830819288c0f0665e81a314be6d356fdc66069cb3f2abf0dd02aaa49ac3732f3f44a533fcec0dfd6f773

Download Submit
memory/2796-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-41-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-24-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-18-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/2796-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2796-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2988-8-0x0000000000270000-0x0000000000C77000-memory.dmp

Filesize
10.0MB

Download
memory/2988-0-0x0000000000270000-0x0000000000C77000-memory.dmp

Filesize
10.0MB

Download
memory/2988-7-0x0000000000270000-0x0000000000C77000-memory.dmp

Filesize
10.0MB

Download
memory/2988-14-0x0000000000270000-0x0000000000C77000-memory.dmp

Filesize
10.0MB

Download
memory/2988-6-0x0000000000270000-0x0000000000C77000-memory.dmp

Filesize
10.0MB

Download
memory/2988-5-0x0000000000270000-0x0000000000C77000-memory.dmp

Filesize
10.0MB

Download
memory/2988-4-0x0000000000270000-0x0000000000C77000-memory.dmp

Filesize
10.0MB

Download
memory/2988-3-0x0000000000270000-0x0000000000C77000-memory.dmp

Filesize
10.0MB

Download
memory/2988-2-0x0000000000271000-0x0000000000470000-memory.dmp

Filesize
2.0MB

Download
memory/2988-1-0x00000000771B0000-0x00000000771B2000-memory.dmp

Filesize
8KB

Download