MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6. 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 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6
SHA3-384 hash: 3674f4cf0d623521f9868386ab804ed1f6a729eb791914191e18afb1deab8702a596324c2c6f319e6b944da3bd3f8041
SHA1 hash: 0e1b2040faeff6dea4146b13d1f0a83fe517bde5
MD5 hash: f42d86b084ab4f227d53dfad7320c393
humanhash: robin-robert-butter-cold
File name:f42d86b084ab4f227d53dfad7320c393.exe
Download: download sample
Signature GCleaner
Create hunting rule
File size:291'328 bytes
First seen:2024-03-29 07:30:26 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash e87c9c66e32f791de60bd46f1df17fc3 (1 x Smoke Loader, 1 x Stealc, 1 x GCleaner)
ssdeep 3072:qvnUB2XKOHJWbFqZ6R+aKkarpzKuUfqpRbMRZNYec9fJjSA84XV1aLd1k8JC03Zk:qvUAXKSsAmckGDpRExo5SA84Xrl8JCU
TLSH T18D54CF11B6F0D077FAF3073199349A54263FFC639EB48A8B3398264E5D712D04A267A7
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 0808190860101000 (1 x GCleaner)
Reporter abuse_ch
Tags:exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
336
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6.exe
Verdict:
Malicious activity
Analysis date:
2024-03-29 07:42:27 UTC
Tags:
gcleaner loader opendir lumma stealer
Link:
https://app.any.run/tasks/bf551c6c-be20-430d-83e5-c7c0cb6c9914

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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint
Link:
https://www.filescan.io/uploads/66066e3daeca3665d3b2a9bb/reports/8b28e341-66b3-4b09-85d3-e18bcd274ee2/overview
Verdict:
Malicious
Labled as:
Malware
Link:
https://www.hybrid-analysis.com/sample/4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/208dd2a2-3e4b-4b8b-9b64-4e3817f4ed8a
Result
Threat name:
GCleaner
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1417410
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)
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: 1417410 Sample: E2PuGKXg4o.exe Startdate: 29/03/2024 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 4 other signatures 2->31 7 E2PuGKXg4o.exe 14 2->7         started        process3 dnsIp4 23 185.172.128.90, 49704, 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       
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6/
Threat name:
Win32.Ransomware.Stopcrypt
Create hunting rule
Status:
Malicious
First seen:
2024-03-28 22:33:43 UTC
AV detection:
23 of 24 (95.83%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=jnqdfqthpqogov7lhhrytgas37tdijvptmeubfdynsna5zfkghla._file
Verdict:
malicious
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner loader
Link:
https://tria.ge/reports/240329-jcegfsdb42/
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
5.42.65.115
Unpacked files
SH256 hash:
110c64b4a03a6ed6c8ffd2baba0a5831fd8bd59ca6b23d6e885a8f34e13461fc
MD5 hash:
fa092cd96d9916f2e247067653cd1110
SHA1 hash:
b21b8b0914adc6d9c8a1d83e0ca0ddb83cd28d23
Detections:
GCleaner
Create hunting rule
Link:
https://www.unpac.me/results/2cb35653-748e-461e-9de6-f8ab5cec8d6e/
Parent samples :
2f956197a4d1936813be2945bd9bd2bad0c30613d5929a0826bc95e106d2714d
7c610d2fd42fde5780d57768926e3a5f8575e6905b8a5ea62dd43ebda36759f5
d0d93869aac6091af6c953475915831f4b300377931bb4dac2adcdceeb5616b2
99d42ee02b2d43170796ccb36e5f05318a713fbbb2b48067024a555a58a57dc9
1f4db635b14e316532f5c29e3c03a52459ce43df9517adf81c7b2057450ab037
151ef2d3caa9606e6aa1531750361b3e413433c1f884f4d700304f1c6501978a
4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6
3ffdada986edc6412a966b49b35d63b38d836252f77c4c6488b3b564653f3af7
b85e0613ef25472f1001e21c2cc4c80ccb133477751927cd9d885a6e2d5661f1
029d1969a657a18577dab2bcc61a8c2aabce1d01fdcd9db4b0273e970ed173a1
b0968bdb6a175a38ec05efcf605ed61411d16e63e692bc0d7b8f1f747ce3b2e5
SH256 hash:
4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6
MD5 hash:
f42d86b084ab4f227d53dfad7320c393
SHA1 hash:
0e1b2040faeff6dea4146b13d1f0a83fe517bde5
Link:
https://www.unpac.me/results/2cb35653-748e-461e-9de6-f8ab5cec8d6e/
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/4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6

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:DebuggerException__SetConsoleCtrl
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:EXE_Stealer_StealC_Feb2024
Create hunting rule
Author:Yashraj Solanki - Cyber Threat Intelligence Analyst at Bridewell
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 4b6032c2677c1c6757eb39e3899812dfe63426af9b094094786c9a0ee4aa31d6

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/2755475/
  
Delivery method
Distributed via web download
  
URLhaus
https://urlhaus.abuse.ch/url/2755494/

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::FindFirstVolumeMountPointW
KERNEL32.dll::FindNextVolumeW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::LoadLibraryExW
KERNEL32.dll::GetVolumeInformationW
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleW
KERNEL32.dll::PeekConsoleInputA
KERNEL32.dll::ReadConsoleA
KERNEL32.dll::SetConsoleCtrlHandler
KERNEL32.dll::SetStdHandle
KERNEL32.dll::GetConsoleAliasesLengthA
KERNEL32.dll::GetConsoleAliasW
KERNEL32.dll::GetConsoleAliasExesLengthA
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileW
KERNEL32.dll::GetWindowsDirectoryA
KERNEL32.dll::RemoveDirectoryA
WIN_BASE_USER_APIRetrieves Account InformationKERNEL32.dll::QueryDosDeviceW

Comments