gcleaner | 661fbb18ad3921c09efad5a71a07883c79b4db81ae8065dce828dfe1338d99e7

Analysis

max time kernel
92s
max time network
100s
platform
windows11-21h2_x64
resource
win11-20250217-en
resource tags

arch:x64arch:x86image:win11-20250217-enlocale:en-usos:windows11-21h2-x64system
submitted
08/03/2025, 14:35

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General

Target
random.exe
Size 3.8MB
Sample250308-rx617symw2
SHA256 661fbb18ad3921c09efad5a71a07883c79b4db81ae8065dce828dfe1338d99e7
MD5 d56e4165f6fed101c7d8e73a499a94fe
SHA1 788168b102e46ccdc900af1c1f313a4cf7611161
SHA512 639fedd532faabd3b065987860c5544022b07fce0ae1491584129446c148de39544a1a98926688ed2d503378baede8b6b8fdda11dca0d5e5026428c78b057f0a
SSDEEP 98304:G2SuLEIef0bnwORwz/8s4tr7heN/6ArEWuGpX2Z:G2SswDks4t/heUmuGX2
MD5 SHA1 SHA512 SSDEEP

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 1 IoCs

flow	pid	Process
1	4796	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.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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-1-5-21-1298619118-249045975-4264763259-1000\Software\Wine	random.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1592	random.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1592 set thread context of 4796	1592	random.exe	81

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1592	random.exe
1592	random.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1592 wrote to memory of 4796	1592	random.exe	81
PID 1592 wrote to memory of 4796	1592	random.exe	81
PID 1592 wrote to memory of 4796	1592	random.exe	81
PID 1592 wrote to memory of 4796	1592	random.exe	81
PID 1592 wrote to memory of 4796	1592	random.exe	81
PID 1592 wrote to memory of 4796	1592	random.exe	81
PID 1592 wrote to memory of 4796	1592	random.exe	81
PID 1592 wrote to memory of 4796	1592	random.exe	81
PID 1592 wrote to memory of 4796	1592	random.exe	81
PID 1592 wrote to memory of 4796	1592	random.exe	81

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
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1592
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - Downloads MZ/PE file
  - System Location Discovery: System Language Discovery
  PID:4796

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

service[1].htm

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\52VEWGFH\service[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/1592-6-0x0000000000B10000-0x0000000001515000-memory.dmp

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memory/1592-19-0x0000000000B10000-0x0000000001515000-memory.dmp

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memory/1592-3-0x0000000000B10000-0x0000000001515000-memory.dmp

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memory/1592-4-0x0000000000B10000-0x0000000001515000-memory.dmp

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memory/1592-5-0x0000000000B10000-0x0000000001515000-memory.dmp

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memory/1592-0-0x0000000000B10000-0x0000000001515000-memory.dmp

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memory/1592-7-0x0000000000B10000-0x0000000001515000-memory.dmp

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memory/1592-2-0x0000000000B11000-0x0000000000D10000-memory.dmp

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memory/1592-1-0x0000000077546000-0x0000000077548000-memory.dmp

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memory/4796-8-0x0000000000520000-0x000000000054F000-memory.dmp

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memory/4796-18-0x0000000000520000-0x000000000054F000-memory.dmp

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memory/4796-13-0x0000000000520000-0x000000000054F000-memory.dmp

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memory/4796-23-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/4796-9-0x0000000000520000-0x000000000054F000-memory.dmp

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