gcleaner | 81c56ebb5ce329cbde207a7bc43e71d90375ec932fd292436341ae212cfda275 | Triage

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Overview

overview

Static

static

3

81c56ebb5c...75.exe

windows7-x64

81c56ebb5c...75.exe

windows10-2004-x64

Sharing

General

Target

81c56ebb5ce329cbde207a7bc43e71d90375ec932fd292436341ae212cfda275
Size

1.8MB
Sample

241226-x2z2cawjgt
MD5

fc2c2bf84a859d674e3d0c4844ad4e70
SHA1

ad3068dbf9bcfa9672e353acd9ef916d9b6e7e45
SHA256

81c56ebb5ce329cbde207a7bc43e71d90375ec932fd292436341ae212cfda275
SHA512

091d2a6b24715af3bee4e2f5970b77ec63ec6fc886d7d513ca059d61e764ca82448ae6e9606f919da9c1ab240b984b5c20df73296158281b0efa1bdade5e334c
SSDEEP

49152:fQkuSJnhtNj8vTCBKt5fHOcizQ9kHtb2Bf1e5vE:4W1NAYKaQCHtb2VY+

Score

10^/10

gcleaner discovery evasion loader

Static task

static1

1 signatures

Behavioral task

behavioral1

Sample

81c56ebb5ce329cbde207a7bc43e71d90375ec932fd292436341ae212cfda275.exe

Resource

win7-20240903-en

gcleaner discovery evasion loader

windows7-x64

11 signatures

150 seconds

Behavioral task

behavioral2

Sample

81c56ebb5ce329cbde207a7bc43e71d90375ec932fd292436341ae212cfda275.exe

Resource

win10v2004-20241007-en

gcleaner discovery evasion loader

windows10-2004-x64

11 signatures

150 seconds

Malware Config

Targets

- Target
  
  81c56ebb5ce329cbde207a7bc43e71d90375ec932fd292436341ae212cfda275
- Size
  
  1.8MB
- MD5
  
  fc2c2bf84a859d674e3d0c4844ad4e70
- SHA1
  
  ad3068dbf9bcfa9672e353acd9ef916d9b6e7e45
- SHA256
  
  81c56ebb5ce329cbde207a7bc43e71d90375ec932fd292436341ae212cfda275
- SHA512
  
  091d2a6b24715af3bee4e2f5970b77ec63ec6fc886d7d513ca059d61e764ca82448ae6e9606f919da9c1ab240b984b5c20df73296158281b0efa1bdade5e334c
- SSDEEP
  
  49152:fQkuSJnhtNj8vTCBKt5fHOcizQ9kHtb2Bf1e5vE:4W1NAYKaQCHtb2VY+
Score

10^/10

gcleaner discovery evasion loader
- 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)
  evasion
- Downloads MZ/PE file
- Checks BIOS information in registry
  BIOS information is often read in order to detect sandboxing environments.
- Identifies Wine through registry keys
  Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
  evasion
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
behavioral1 behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

Credential Access

Discovery

Query Registry

System Information Discovery

System Location Discovery

System Language Discovery

Virtualization/Sandbox Evasion

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Tasks

static1

behavioral1

gcleanerdiscoveryevasionloader

behavioral2

gcleanerdiscoveryevasionloader

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