MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f0a6f13b482273d029a6a8613664c33a8f6381dcf98d2cdc7954bbf161c93f49. 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: 14


Intelligence 14 IOCs YARA 6 File information Comments 1

SHA256 hash: f0a6f13b482273d029a6a8613664c33a8f6381dcf98d2cdc7954bbf161c93f49
SHA3-384 hash: a171c02d847293f998acde5b9b9abef58d4b0ae8b13f2cc707693d6576ece70c97b4d6c53f65e3edd383ff3e46657d90
SHA1 hash: d99699c361864fe49ce29c50f9421ef4813c74a0
MD5 hash: c095c87e67b0964a91603f3af00dcd97
humanhash: golf-victor-double-river
File name:c095c87e67b0964a91603f3af00dcd97
Download: download sample
Signature GCleaner
File size:292'352 bytes
First seen:2024-04-02 19:40:01 UTC
Last seen:2024-04-02 20:30:18 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 84fe06240982f1bd102fcac07fa31539 (2 x GCleaner)
ssdeep 6144:D8qrKd3vhpFsfpmG/1DjHyYmT2t+34XVe:Br03vhbc1DGC+oV
TLSH T11F54BE01FFD1D872D5622534CD65CBA51B7EBC329E34428B7B902A2F6EB02D04A36776
TrID 52.5% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
17.7% (.EXE) Win64 Executable (generic) (10523/12/4)
8.4% (.EXE) Win16 NE executable (generic) (5038/12/1)
7.5% (.EXE) Win32 Executable (generic) (4504/4/1)
3.4% (.ICL) Windows Icons Library (generic) (2059/9)
File icon (PE):PE icon
dhash icon 71f0bc8e8e96e871 (1 x GCleaner)
Reporter zbetcheckin
Tags:32 exe gcleaner

Intelligence


File Origin
# of uploads :
2
# of downloads :
374
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
f0a6f13b482273d029a6a8613664c33a8f6381dcf98d2cdc7954bbf161c93f49.exe
Verdict:
Malicious activity
Analysis date:
2024-04-02 19:41:42 UTC
Tags:
loader gcleaner

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)
Sending an HTTP GET request to an infection source
Сreating synchronization primitives
Connection attempt to an infection source
Verdict:
No Threat
Threat level:
  10/10
Confidence:
100%
Tags:
fingerprint
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
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Snort IDS alert for network traffic
Yara detected GCleaner
Behaviour
Behavior Graph:
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1419010 Sample: cKuMbfgnQu.exe Startdate: 02/04/2024 Architecture: WINDOWS Score: 100 25 Snort IDS alert for network traffic 2->25 27 Malicious sample detected (through community Yara rule) 2->27 29 Antivirus detection for URL or domain 2->29 31 3 other signatures 2->31 7 cKuMbfgnQu.exe 14 2->7         started        process3 dnsIp4 23 185.172.128.90, 49730, 80 NADYMSS-ASRU Russian Federation 7->23 33 Detected unpacking (changes PE section rights) 7->33 35 Detected unpacking (overwrites its own PE header) 7->35 11 cmd.exe 7->11         started        13 WerFault.exe 16 7->13         started        15 WerFault.exe 16 7->15         started        17 7 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 taskkill.exe 11->21         started       
Threat name:
Win32.Ransomware.GandCrab
Status:
Malicious
First seen:
2024-04-02 19:41:04 UTC
File Type:
PE (Exe)
Extracted files:
34
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Verdict:
malicious
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
Deletes itself
GCleaner
Malware Config
C2 Extraction:
185.172.128.90
5.42.65.64
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: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:DebuggerHiding__Active
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 f0a6f13b482273d029a6a8613664c33a8f6381dcf98d2cdc7954bbf161c93f49

(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::FindNextVolumeMountPointA
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::ReadConsoleOutputA
KERNEL32.dll::SetConsoleOutputCP
KERNEL32.dll::SetConsoleTitleA
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthW
KERNEL32.dll::GetConsoleAliasExesLengthW
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateHardLinkA
KERNEL32.dll::CreateFileA
KERNEL32.dll::CreateFileW

Comments



Avatar
zbet commented on 2024-04-02 19:40:02 UTC

url : hxxp://5.42.65.64/download.php?pub=inte/