MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3. 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: 13


Intelligence 13 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3
SHA3-384 hash: 230cb2b6438fb57672ebfa6c1e116774a1fb16c81b2e58eb723048d2a2d0110e6fe1f58c812d2fb0d88d6adcd96087fe
SHA1 hash: 1c7061c2dc32dbf3fa0d31fc81536a523899b8c4
MD5 hash: 8c7c9042307b9cdd83daa9e8b5bbd450
humanhash: oven-mike-texas-hydrogen
File name:a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3
Download: download sample
Signature GCleaner
Create hunting rule
File size:354'304 bytes
First seen:2024-05-09 10:55:45 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 983de695fc8588c3739e5fcc4e670757 (1 x GCleaner)
ssdeep 6144:9q6RYBumm/SqmNbPm/W4ydhsmeb3ClZwQZLMlyEcNPg33q:HYMmgWX4GsmdlhdMlyEyW3
Threatray 31 similar samples on MalwareBazaar
TLSH T13874CF6132A4F972D76309F04E66C6F116FEFCB25A64938733442A1F7AB17D0C62A361
TrID 37.3% (.EXE) Win64 Executable (generic) (10523/12/4)
17.8% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.9% (.EXE) Win32 Executable (generic) (4504/4/1)
7.3% (.ICL) Windows Icons Library (generic) (2059/9)
7.2% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 3370ecdaccf0335a (3 x Stealc, 2 x GCleaner, 1 x LummaStealer)
Reporter adrian__luca
Tags:exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
291
Origin country :
HU HU
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3.exe
Verdict:
Malicious activity
Analysis date:
2024-05-09 10:58:04 UTC
Tags:
gcleaner loader
Link:
https://app.any.run/tasks/bff0d5ec-b86c-45af-b89b-37752040102c

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection(s):
Win.Adware.Glupteba-10026320-0
Create hunting rule

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
Running batch commands
Creating a process with a hidden window
Connection attempt to an infection source
Launching a tool to kill processes
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint ransomware zbot
Link:
https://www.filescan.io/uploads/663cabc5df07636df8d2cde0/reports/94ed2009-2846-4c06-89fd-d4c384edf3cb/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/89392ed4-8380-4729-8de7-252fcc9120d3
Result
Threat name:
GCleaner
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1438869
Signature
Antivirus / Scanner detection for submitted 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
Snort IDS alert for network traffic
Yara detected GCleaner
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 1438869 Sample: MDtS71mamg.exe Startdate: 09/05/2024 Architecture: WINDOWS Score: 100 25 Snort IDS alert for network traffic 2->25 27 Multi AV Scanner detection for domain / URL 2->27 29 Found malware configuration 2->29 31 7 other signatures 2->31 7 MDtS71mamg.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 6 other processes 7->17 signatures5 process6 process7 19 conhost.exe 11->19         started        21 taskkill.exe 11->21         started       
Score:
99%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3/
Threat name:
Win32.Ransomware.StopCrypt
Create hunting rule
Status:
Malicious
First seen:
2024-04-04 18:31:07 UTC
File Type:
PE (Exe)
Extracted files:
48
AV detection:
21 of 24 (87.50%)
Threat level:
  5/5
Detection(s):
Malicious file
Link:
https://check.spamhaus.org/check/?searchterm=vf36wapvd634bhgegplyktim6iumiycbvgsmhxqddkim2q4idtzq._file
Verdict:
malicious
Similar samples:
037a46151276b43c63d80cff902a606130b50c73cd0f381fb7b9054f8d84f983
GCleaner
114aa6cb595ed49423707788c3a06a79e250d23d0615108cbb3fb5bdd20af5c8
GCleaner
176468f01cd7ca28f666e4b3ffed69b76b4306a6081bed0859c984950d344d83
GCleaner
8b3ee970a1b172952a665247aa5ff590d12d8f4b33c0775573044595df6383c9
GCleaner
ee36bc6d088eefecf233a4592027abfe4934fdd240afd39dc654da60e49b710c
GCleaner
f0a6f13b482273d029a6a8613664c33a8f6381dcf98d2cdc7954bbf161c93f49
GCleaner
+ 21 additional samples on MalwareBazaar
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner loader
Link:
https://tria.ge/reports/240509-m1nxksdh4v/
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
Unpacked files
SH256 hash:
9c7b9e215019ee60b020594d925e16ba46891fe0c856031dd18f0261917af204
MD5 hash:
3f77b69c60f28f076bd02d531490b300
SHA1 hash:
b2070e496f5b062131c36c1a1ec99b243dada692
Detections:
GCleaner
Create hunting rule
Link:
https://www.unpac.me/results/b72b80ea-286a-4690-b96a-923f5b599d99/
Parent samples :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 hash:
a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3
MD5 hash:
8c7c9042307b9cdd83daa9e8b5bbd450
SHA1 hash:
1c7061c2dc32dbf3fa0d31fc81536a523899b8c4
Link:
https://www.unpac.me/results/b72b80ea-286a-4690-b96a-923f5b599d99/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3

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
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:maldoc_find_kernel32_base_method_1
Create hunting rule
Author:Didier Stevens (https://DidierStevens.com)
Rule name:Windows_Generic_Threat_97c1a260
Create hunting rule
Author:Elastic Security
Rule name:Windows_Trojan_Generic_2993e5a5
Create hunting rule
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 a977eb01f51fb7c09cc433d7854d0cf228c46041a9a4c3de031a90cd43881cf3

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2798339/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2798218/

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
AUTH_APIManipulates User AuthorizationADVAPI32.dll::GetAce
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::FindFirstVolumeMountPointW
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetStartupInfoW
KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleOutputA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleCP
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::CreateHardLinkW
KERNEL32.dll::CreateFileW

Comments