MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ff8f82b43811e61b65d707f35cac31af19e0fa5d7a15e920e665524a18ca1fdf. 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: 12

Intelligence 12 IOCs YARA 6 File information Comments 1

SHA256 hash:	ff8f82b43811e61b65d707f35cac31af19e0fa5d7a15e920e665524a18ca1fdf
SHA3-384 hash:	ee73abd122acaca34d3d39bb48c1ee5ab6c0a912ad547b8a56c7790c8c4d19ee94e40149e8d465f1d9087f1f04c64c55
SHA1 hash:	e29747c6db83e26bb11b23e53f847ecb163c5b2f
MD5 hash:	dd49b01b20c449788ebd53a85934696b
humanhash:	montana-cola-wisconsin-michigan
File name:	dd49b01b20c449788ebd53a85934696b
Download:	download sample
Signature	GCleaner Create hunting rule
File size:	262'144 bytes
First seen:	2024-05-10 11:07:34 UTC
Last seen:	Never
File type:	exe
MIME type:	application/x-dosexec
imphash	c7c40a60900333ddf55dd487e2300ddd (1 x GCleaner)
ssdeep	3072:kCOdUMn2kOMPp2MItjGBmYpd1+HVBKkWqsNtrH5J99O7ZK0MtJbTCPwjVnWZs1F1:kRnBdItjBS7xNhZbCXCTkwZnsouTS
TLSH	T1D844BFD13EE4C073E5774631483089B01B7AFC779E659D9B3398EB5F68302D0AA16B62
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	0301110908141500 (1 x GCleaner)
Reporter	zbetcheckin
Tags:	32 exe gcleaner

Intelligence

File Origin

# of uploads :

# of downloads :

314

Origin country :

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

ff8f82b43811e61b65d707f35cac31af19e0fa5d7a15e920e665524a18ca1fdf.exe

Verdict:

Malicious activity

Analysis date:

2024-05-10 11:10:35 UTC

Tags:

gcleaner loader

Link:

https://app.any.run/tasks/a3bc87db-dc5d-406a-a4ad-cd1157625c43

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

Result

Verdict:

Clean

Maliciousness:

Behaviour

Searching for the window

Verdict:

Suspicious

Threat level:

5/10

Confidence:

100%

Tags:

fingerprint packed

Link:

https://www.filescan.io/uploads/663e00211c9796b80ab996f5/reports/381e335d-511b-4b4c-81c6-a342057f05c8/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/ff8f82b43811e61b65d707f35cac31af19e0fa5d7a15e920e665524a18ca1fdf

Malware family:

STOP Ransomware

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/849f7b03-8e7b-4384-a452-6bec0ec491fc

Result

Threat name:

GCleaner

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1439556

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

Score:

100%

Verdict:

Malware

File Type:

Link:

https://malprob.io/report/ff8f82b43811e61b65d707f35cac31af19e0fa5d7a15e920e665524a18ca1fdf

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/ff8f82b43811e61b65d707f35cac31af19e0fa5d7a15e920e665524a18ca1fdf/

Threat name:

Win32.Trojan.SmokeLoader

Status:

Malicious

First seen:

2024-05-10 10:41:09 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

22 of 24 (91.67%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=76hyfnbychtbwzoxa7zvzlbrv4m6b6s5pik6sihgmvjeuggkd7pq._file

Verdict:

malicious

Result

Malware family:

gcleaner

Score:

10/10

Tags:

family:gcleaner loader

Link:

https://tria.ge/reports/240510-m8jmtsec39/

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:

ff8f82b43811e61b65d707f35cac31af19e0fa5d7a15e920e665524a18ca1fdf

MD5 hash:

dd49b01b20c449788ebd53a85934696b

SHA1 hash:

e29747c6db83e26bb11b23e53f847ecb163c5b2f

Link:

https://www.unpac.me/results/c3cce805-fefe-46e0-be6b-afd707133e55/

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/ff8f82b43811e61b65d707f35cac31af19e0fa5d7a15e920e665524a18ca1fdf

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

exe ff8f82b43811e61b65d707f35cac31af19e0fa5d7a15e920e665524a18ca1fdf

(this sample)

Delivery method

Distributed via web download

URLhaus

https://urlhaus.abuse.ch/url/2798339/

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

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
WIN32_PROCESS_API	Can Create Process and Threads	KERNEL32.dll::CloseHandle
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryExA KERNEL32.dll::LoadLibraryExW KERNEL32.dll::GetVolumeInformationA KERNEL32.dll::GetStartupInfoW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleA KERNEL32.dll::WriteConsoleW KERNEL32.dll::ReadConsoleInputA KERNEL32.dll::ReadConsoleW KERNEL32.dll::SetConsoleOutputCP KERNEL32.dll::SetStdHandle
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateHardLinkA KERNEL32.dll::CreateFileW KERNEL32.dll::GetWindowsDirectoryA KERNEL32.dll::GetSystemDirectoryA KERNEL32.dll::RemoveDirectoryA KERNEL32.dll::GetTempPathA
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.dll::GetComputerNameA

Comments

Login required

You need to login to in order to write a comment. Login with your abuse.ch account.

zbet commented on 2024-05-10 11:07:35 UTC

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