gcleaner | 979d7afda8224f12d4fbf3baf313d34317869d30e52608fe3e2f959fa2998b49

Analysis

max time kernel
110s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2025, 15:41

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General

Target
random.exe
Size 4.5MB
Sample250307-s4s9cssrs6
SHA256 979d7afda8224f12d4fbf3baf313d34317869d30e52608fe3e2f959fa2998b49
MD5 f23cde620e1aa927df2729ab5bc026ba
SHA1 17a28874ec64756b561f6bff36a9ce15bc86e023
SHA512 48e7969a0a10d42d92e13a16d86ca653201a5a6456adf1640f323a805d5e088ff50cca60fed50560c05df83913d513ec7ae7119e11883c4360ba46294a73e810
SSDEEP 98304:zM0e0fXDXjFhL5lSad4tsJlwqiEciGVS4UG4iLexAOzEo0kU:zM0e0fLjFhNlDWWlTx2Z5iC
MD5 SHA1 SHA512 SSDEEP

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.exe

Downloads MZ/PE file 1 IoCs

flow	pid	Process
30	2960	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-1-5-21-22591836-1183090055-1220658180-1000\Software\Wine	random.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3976	random.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3976 set thread context of 2960	3976	random.exe	95

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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3976	random.exe
3976	random.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3976 wrote to memory of 2960	3976	random.exe	95
PID 3976 wrote to memory of 2960	3976	random.exe	95
PID 3976 wrote to memory of 2960	3976	random.exe	95
PID 3976 wrote to memory of 2960	3976	random.exe	95
PID 3976 wrote to memory of 2960	3976	random.exe	95
PID 3976 wrote to memory of 2960	3976	random.exe	95
PID 3976 wrote to memory of 2960	3976	random.exe	95
PID 3976 wrote to memory of 2960	3976	random.exe	95
PID 3976 wrote to memory of 2960	3976	random.exe	95
PID 3976 wrote to memory of 2960	3976	random.exe	95

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:3976
- C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe
  "C:\Windows\BitLockerDiscoveryVolumeContents\BitLockerToGo.exe"
  2⤵
  - Downloads MZ/PE file
  - System Location Discovery: System Language Discovery
  PID:2960

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\VHQUNTV1\service[1].htm
Size 1B
SHA256 5feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
MD5 cfcd208495d565ef66e7dff9f98764da
SHA1 b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA512 31bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99
MD5 SHA1 SHA512

Submit Download

memory/2960-15-0x0000000010000000-0x000000001001C000-memory.dmp

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memory/2960-9-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2960-37-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2960-22-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2960-10-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2960-7-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2960-11-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/3976-2-0x0000000000711000-0x00000000009C7000-memory.dmp

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memory/3976-6-0x0000000000710000-0x000000000133E000-memory.dmp

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memory/3976-8-0x0000000000710000-0x000000000133E000-memory.dmp

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memory/3976-5-0x0000000000710000-0x000000000133E000-memory.dmp

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memory/3976-0-0x0000000000710000-0x000000000133E000-memory.dmp

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memory/3976-1-0x0000000077384000-0x0000000077386000-memory.dmp

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memory/3976-4-0x0000000000710000-0x000000000133E000-memory.dmp

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memory/3976-3-0x0000000000710000-0x000000000133E000-memory.dmp

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