MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 949671d23c3e73fd7e4551f5bb20afc7ad4a0f6b60a1d73f704756daf61a231e. 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: 15


Intelligence 15 IOCs YARA 8 File information Comments 1

SHA256 hash: 949671d23c3e73fd7e4551f5bb20afc7ad4a0f6b60a1d73f704756daf61a231e
SHA3-384 hash: 3b11a21818f039e1e5d88abb53231611c80529497a0782e819b7676215e63a323b63f7cab514429825769f59d4f0d423
SHA1 hash: 3cee044b621d03ffc88dc7e06a33427258e28fab
MD5 hash: cce2c9c00b43e41ec26232861f2625b4
humanhash: crazy-juliet-oxygen-jig
File name:cce2c9c00b43e41ec26232861f2625b4
Download: download sample
Signature GCleaner
File size:327'680 bytes
First seen:2024-06-19 02:23:32 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash fc3173abdf91fccb3912647bd7da85fd (1 x GCleaner)
ssdeep 6144:bn1GmElpUAGTMmVhoISJPFhFzBURQmNT:hGmElpPsToISV8/
Threatray 11 similar samples on MalwareBazaar
TLSH T1D9644A0292917D97EB264E329E6FC2E8760DB911CE193B7A3258AF3F1471172C276731
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)
File icon (PE):PE icon
dhash icon 020604010a383000 (1 x GCleaner)
Reporter zbetcheckin
Tags:32 exe gcleaner

Intelligence


File Origin
# of uploads :
1
# of downloads :
428
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
949671d23c3e73fd7e4551f5bb20afc7ad4a0f6b60a1d73f704756daf61a231e.exe
Verdict:
Malicious activity
Analysis date:
2024-06-19 02:25:54 UTC
Tags:
gcleaner loader opendir

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for synchronization primitives
Launching the default Windows debugger (dwwin.exe)
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed
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 dropped file
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 dropped file
Multi AV Scanner detection for submitted file
Snort IDS alert for network traffic
Yara detected GCleaner
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1459264 Sample: dwS7xbnPuD.exe Startdate: 19/06/2024 Architecture: WINDOWS Score: 100 46 Snort IDS alert for network traffic 2->46 48 Multi AV Scanner detection for domain / URL 2->48 50 Found malware configuration 2->50 52 9 other signatures 2->52 7 dwS7xbnPuD.exe 17 2->7         started        process3 dnsIp4 42 185.172.128.69, 49732, 80 NADYMSS-ASRU Russian Federation 7->42 44 185.172.128.90, 49731, 80 NADYMSS-ASRU Russian Federation 7->44 26 C:\Users\user\AppData\...\0z9vuMIxaqdG.exe, PE32 7->26 dropped 28 C:\Users\user\AppData\Local\...\TWO[1].file, PE32 7->28 dropped 54 Detected unpacking (changes PE section rights) 7->54 56 Detected unpacking (overwrites its own PE header) 7->56 12 0z9vuMIxaqdG.exe 1 7->12         started        15 WerFault.exe 16 7->15         started        18 WerFault.exe 16 7->18         started        20 7 other processes 7->20 file5 signatures6 process7 file8 58 Antivirus detection for dropped file 12->58 60 Multi AV Scanner detection for dropped file 12->60 30 C:\ProgramData\Microsoft\...\Report.wer, Unicode 15->30 dropped 32 C:\ProgramData\Microsoft\...\Report.wer, Unicode 18->32 dropped 34 C:\ProgramData\Microsoft\...\Report.wer, Unicode 20->34 dropped 36 C:\ProgramData\Microsoft\...\Report.wer, Unicode 20->36 dropped 38 C:\ProgramData\Microsoft\...\Report.wer, Unicode 20->38 dropped 40 3 other malicious files 20->40 dropped 22 conhost.exe 20->22         started        24 taskkill.exe 20->24         started        signatures9 process10
Threat name:
Win32.Trojan.Gcleaner
Status:
Malicious
First seen:
2024-06-17 16:42:34 UTC
File Type:
PE (Exe)
Extracted files:
76
AV detection:
18 of 24 (75.00%)
Threat level:
  5/5
Result
Malware family:
gcleaner
Score:
  10/10
Tags:
family:gcleaner loader
Behaviour
Kills process with taskkill
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Checks computer location settings
GCleaner
Malware Config
C2 Extraction:
185.172.128.90
185.172.128.69
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
949671d23c3e73fd7e4551f5bb20afc7ad4a0f6b60a1d73f704756daf61a231e
MD5 hash:
cce2c9c00b43e41ec26232861f2625b4
SHA1 hash:
3cee044b621d03ffc88dc7e06a33427258e28fab
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:Check_OutputDebugStringA_iat
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerException__SetConsoleCtrl
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Generic_Threat_97c1a260
Author:Elastic Security
Rule name:Windows_Trojan_Generic_2993e5a5
Author:Elastic Security

File information


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

Web download

GCleaner

Executable exe 949671d23c3e73fd7e4551f5bb20afc7ad4a0f6b60a1d73f704756daf61a231e

(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_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::WriteProcessMemory
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryExA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetDiskFreeSpaceW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::GetConsoleAliasA
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkW
KERNEL32.dll::GetWindowsDirectoryW
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::GetComputerNameW

Comments



Avatar
zbet commented on 2024-06-19 02:23:33 UTC

url : hxxp://185.172.128.69/download.php?pub=inte/