MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5fff5f8ae81b7a71be4c1ab4f92b118306685af72ac5ef643e7deb05b2893a51. 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 2 File information Comments 1

SHA256 hash:	5fff5f8ae81b7a71be4c1ab4f92b118306685af72ac5ef643e7deb05b2893a51
SHA3-384 hash:	ea3aac01c5d586ff1e5f7bc301232b68cbd481d0ad1f61a7378e52c2ad981677163bfc6b02fded051ffafeed38db24a4
SHA1 hash:	8691d0cd2b63044685ba6ede30a0e45783b22889
MD5 hash:	91fd3b84e981072435842c9ec4498d0e
humanhash:	mississippi-burger-oregon-yellow
File name:	91fd3b84e981072435842c9ec4498d0e
Download:	download sample
Signature	GCleaner Create hunting rule
File size:	355'328 bytes
First seen:	2024-07-11 00:49:40 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	a3e85d80936c7ef42408e50a5a01f3d6 (2 x GCleaner, 1 x Smoke Loader)
ssdeep	3072:1ypU2bTpcIyvd+ZEwCmXwVBmbwOJ4WoL3Ibo1KpToUR+5m4LcfSXUkYQCeD/e+g:Tk+w/RZ+WoL4bo1KpcX5mcWHQX
Threatray	50 similar samples on MalwareBazaar
TLSH	T1C274E01172F19437D6B35DB044F187B01AAB3E834B75829B6B9812BA1FA23D09FB5353
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):
dhash icon	009890acd9e02088 (2 x GCleaner)
Reporter	zbetcheckin
Tags:	32 exe gcleaner

Intelligence

File Origin

# of uploads :

# of downloads :

457

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

5fff5f8ae81b7a71be4c1ab4f92b118306685af72ac5ef643e7deb05b2893a51.exe

Verdict:

Malicious activity

Analysis date:

2024-07-11 00:50:35 UTC

Tags:

gcleaner loader

Link:

https://app.any.run/tasks/9767cecc-2ad5-4d9e-888b-067b71fe33e5

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Detection(s):

Win.Packer.pkr_ce1a-9980177-0

Verdict:

Malicious

Score:

99.1%

Link:

https://cyber-fortress.com/docs/result/index.php?id=668f2c3b6df1b20b8ec475b6win10vpnfull_triage

Tags:

Execution Infostealer Network Stealth

Verdict:

Likely Malicious

Threat level:

7.5/10

Confidence:

100%

Tags:

epmicrosoft_visual_cc fingerprint microsoft_visual_cc packed

Link:

https://www.filescan.io/uploads/668f2c3a7731d034e881e436/reports/a05e7e38-e3e0-4479-b401-c4bea967b35c/overview

Verdict:

Malicious

Labled as:

Win/malicious_confidence_100%

Link:

https://www.hybrid-analysis.com/sample/5fff5f8ae81b7a71be4c1ab4f92b118306685af72ac5ef643e7deb05b2893a51

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/63be5f45-5d6d-43ee-b896-383a73ac1dd2

Result

Threat name:

GCleaner, Nymaim

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1471202

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

Yara detected Nymaim

Behaviour

Behavior Graph:

Download SVG

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/5fff5f8ae81b7a71be4c1ab4f92b118306685af72ac5ef643e7deb05b2893a51

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/5fff5f8ae81b7a71be4c1ab4f92b118306685af72ac5ef643e7deb05b2893a51/

Threat name:

Win32.Trojan.CrypterX

Status:

Malicious

First seen:

2024-07-11 00:50:06 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

14 of 24 (58.33%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=l77v7cxidn5hdpsmdk2pskyrqmdgqwxxflc66zb6pxvqlmujhjiq._file

Verdict:

malicious

GCleaner

373f1a98cafb50508a6310576eaaf8dff1a3da118a185306fcdb1973b6c7e355

GCleaner

4787c7c6c84642962db915599fbf74082e5bfb52facd4ce1142d38f37813d6ff

GCleaner

abc8791aca686d175c4059f78713272c2da4ccc0897a51505b5ec5eec3e41dab

GCleaner

eff792dadc6701dacb64dc7a8463ba2876b021f11b2a3562679323badcbbf8dd

GCleaner

+ 40 additional samples on MalwareBazaar

Result

Malware family:

gcleaner

Score:

10/10

Tags:

family:gcleaner loader

Link:

https://tria.ge/reports/240711-a6xqfszblk/

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
77.105.160.30
185.172.128.69

Verdict:

Suspicious

Tags:

n/a

YARA:

n/a

Link:

https://app.threat.zone/submission/f4c9fc1b-83d2-4584-b042-879404655613

Unpacked files

SH256 hash:

4952bdcedd7e1b79a220f6aa4e60e8161e5b18a6dc587c14f98052be633df538

MD5 hash:

217b817f890ef7fc49dc9207d55d2a01

SHA1 hash:

c25b4b908a3f7e2ebc24a837fc311f2cba168447

Detections:

GCleaner

win_gcleaner_auto

Link:

https://www.unpac.me/results/e885a27b-d726-4bf2-a72a-c44fe2697407/

Parent samples :
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SH256 hash:

5fff5f8ae81b7a71be4c1ab4f92b118306685af72ac5ef643e7deb05b2893a51

MD5 hash:

91fd3b84e981072435842c9ec4498d0e

SHA1 hash:

8691d0cd2b63044685ba6ede30a0e45783b22889

Link:

https://www.unpac.me/results/e885a27b-d726-4bf2-a72a-c44fe2697407/

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 Create hunting rule
Reference:	https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information

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

Web download

GCleaner

exe 5fff5f8ae81b7a71be4c1ab4f92b118306685af72ac5ef643e7deb05b2893a51

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2934399/

URLhaus

https://urlhaus.abuse.ch/url/2934398/

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

ID	Title	Severity
CHECK_AUTHENTICODE	Missing Authenticode	high
CHECK_DLL_CHARACTERISTICS	Missing dll Security Characteristics (HIGH_ENTROPY_VA)	high
CHECK_NX	Missing Non-Executable Memory Protection	critical
CHECK_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
AUTH_API	Manipulates User Authorization	ADVAPI32.dll::CopySid
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryW KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::AllocConsole KERNEL32.dll::WriteConsoleInputW
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateDirectoryA KERNEL32.dll::CreateFileMappingA KERNEL32.dll::CreateFileA KERNEL32.dll::ReplaceFileA KERNEL32.dll::GetWindowsDirectoryW

Comments

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zbet commented on 2024-07-11 00:49:41 UTC

url : hxxp://77.105.132.5/download.php?pub=univ/