gcleaner | 0249c4c6a5a773c57b3dac1ec14e0ab27f72c3a125e93e626257495e23b99176

Analysis

max time kernel
99s
max time network
142s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250113-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
21/01/2025, 20:18

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General

Target

random.exe
Size

1.8MB
MD5

a4c5cc46761da6530f33389f74ee963e
SHA1

55b559a5a0e923af78c13ed217399356b92fb462
SHA256

0249c4c6a5a773c57b3dac1ec14e0ab27f72c3a125e93e626257495e23b99176
SHA512

8bd34f54d589721ab09967c94764bd2161837419e203c0bbab3d926620ff32601b5bc0cc2fe159acbe99bd6260a55b2fcc7e7dba1f52b17f641a1edb00be3f25
SSDEEP

49152:YWulScYtBYCvaKvctCoxiuqYJ7R9boxwCUKIG:YWuVYgCDg7iy5Rt4wC/I

Score

10^/10

gcleaner defense_evasion discovery loader

Malware Config

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.exe

Downloads MZ/PE file

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\VideoBiosVersion	random.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	random.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-1-5-21-3406519639-3774642266-3926631722-1000\Software\Wine	random.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
4412	random.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2112	4412	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 1 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.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4412	random.exe
4412	random.exe

C:\Users\Admin\AppData\Local\Temp\random.exe
"C:\Users\Admin\AppData\Local\Temp\random.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
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4412
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4412 -s 516
  2⤵
  - Program crash
  PID:2112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 4412 -ip 4412
1⤵
PID:2320

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PXSTLLAR\download[1].htm

Filesize
1B

MD5
cfcd208495d565ef66e7dff9f98764da

SHA1
b6589fc6ab0dc82cf12099d1c2d40ab994e8410c

SHA256
5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9

SHA512
31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99

Download Submit
memory/4412-4-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-18-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-3-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-0-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-6-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-7-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-11-0x0000000010000000-0x000000001001C000-memory.dmp

Filesize
112KB

Download
memory/4412-15-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-2-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/4412-20-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-17-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/4412-1-0x0000000077B45000-0x0000000077B47000-memory.dmp

Filesize
8KB

Download
memory/4412-22-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-26-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-31-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download
memory/4412-41-0x0000000000401000-0x0000000000426000-memory.dmp

Filesize
148KB

Download
memory/4412-40-0x0000000000400000-0x0000000000C46000-memory.dmp

Filesize
8.3MB

Download