MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6f4c8936d3a99cb30a58c294ceeaf158587a6fc1776a6dba4213134e4225734c. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



GCleaner


Vendor detections: 16


Intelligence 16 IOCs YARA 6 File information Comments

SHA256 hash: 6f4c8936d3a99cb30a58c294ceeaf158587a6fc1776a6dba4213134e4225734c
SHA3-384 hash: eb5e113abec381bd65176cdff1e67842a76073c47ad05c9c9bd3be9d61a6b40f17f6e8663b548d6a118726b96ad44535
SHA1 hash: 690e83f77e71a3d5366453ce20809e0815f97105
MD5 hash: e4ff3bee77eea05ba54f0e0757341837
humanhash: sixteen-michigan-fish-glucose
File name:e4ff3bee77eea05ba54f0e0757341837.exe
Download: download sample
Signature GCleaner
File size:315'904 bytes
First seen:2024-08-30 07:57:03 UTC
Last seen:2024-08-30 08:30:57 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash fcf09202fd7906eb4c9ecda72c90fed3 (1 x GCleaner)
ssdeep 3072:nMjOScSxw4QffmVYe+xm5Y3mh8vJY+pvK7UOt1FI2JsHI4aMvy/:nMjOSzxdQxeD5Yc8vK7wYso4amy
Threatray 12 similar samples on MalwareBazaar
TLSH T1E264AE1122E6C022EF674735593086A49E2BBD9BAB3251BF22707E2FDE733935955303
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
Magika pebin
File icon (PE):PE icon
dhash icon 1030326664321000 (1 x GCleaner)
Reporter abuse_ch
Tags:exe gcleaner

Intelligence


File Origin
# of uploads :
2
# of downloads :
369
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
e4ff3bee77eea05ba54f0e0757341837.exe
Verdict:
Malicious activity
Analysis date:
2024-08-30 08:27:37 UTC
Tags:
gcleaner loader

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
Tags:
Execution Infostealer Network Stealth Zpack
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Running batch commands
Creating a process with a hidden window
Launching the default Windows debugger (dwwin.exe)
Using the Windows Management Instrumentation requests
Searching for the window
Connection attempt to an infection source
Launching a tool to kill processes
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
GCleaner
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
AI detected suspicious sample
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Yara detected GCleaner
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1501687 Sample: XeNqCUWGCR.exe Startdate: 30/08/2024 Architecture: WINDOWS Score: 100 23 206.23.85.13.in-addr.arpa 2->23 27 Multi AV Scanner detection for domain / URL 2->27 29 Found malware configuration 2->29 31 Malicious sample detected (through community Yara rule) 2->31 33 6 other signatures 2->33 8 XeNqCUWGCR.exe 24 2->8         started        signatures3 process4 dnsIp5 25 80.66.75.114, 49730, 80 RISS-ASRU Russian Federation 8->25 35 Detected unpacking (changes PE section rights) 8->35 37 Detected unpacking (overwrites its own PE header) 8->37 12 WerFault.exe 21 16 8->12         started        15 cmd.exe 1 8->15         started        signatures6 process7 file8 21 C:\ProgramData\Microsoft\...\Report.wer, Unicode 12->21 dropped 17 taskkill.exe 1 15->17         started        19 conhost.exe 15->19         started        process9
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2024-08-29 01:08:06 UTC
File Type:
PE (Exe)
Extracted files:
49
AV detection:
19 of 24 (79.17%)
Threat level:
  5/5
Result
Malware family:
gcleaner
Score:
  10/10
Tags:
family:gcleaner discovery loader
Behaviour
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
System Location Discovery: System Language Discovery
Checks computer location settings
Deletes itself
GCleaner
Malware Config
C2 Extraction:
80.66.75.114
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerHiding__Active
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:pe_detect_tls_callbacks

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

GCleaner

Executable exe 6f4c8936d3a99cb30a58c294ceeaf158587a6fc1776a6dba4213134e4225734c

(this sample)

  
Delivery method
Distributed via web download

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleOutputW
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleMode
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasExesLengthA
KERNEL32.dll::GetConsoleAliasesLengthA
KERNEL32.dll::GetConsoleAliasesW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateDirectoryW
KERNEL32.dll::CreateFileW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW
KERNEL32.dll::QueryDosDeviceW

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