MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a. 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: 15

Intelligence 15 IOCs YARA 5 File information Comments 1

SHA256 hash:	2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a
SHA3-384 hash:	7a58eb7d52a3cf7a5059575e4cee52953c8230953fc93ab9fdbf0e47a81e6bd6362af601844ca85ed87781107c5f24cb
SHA1 hash:	936b70906d011f4888e249a52f0544e8836f9a70
MD5 hash:	679f8f09e36c8e01467d665b3cc125c2
humanhash:	apart-ack-uncle-cup
File name:	679f8f09e36c8e01467d665b3cc125c2
Download:	download sample
Signature	GCleaner Create hunting rule
File size:	227'840 bytes
First seen:	2024-03-10 19:59:31 UTC
Last seen:	2024-03-10 21:26:58 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	ea7aba1287be4e37d15aa590ab1d2eb7 (1 x GCleaner)
ssdeep	3072:1i3bLVyBgwKUEf+5AR/rH9pPay1Dfuw5j6A3hxq9PsDPxt2tpRa:g/pUEW5y5pl1Th5di9PE5t2
Threatray	15 similar samples on MalwareBazaar
TLSH	T11324E0903AE08475E4A31A344474DAA55A7A7C92977006AF33BF373E4F357C08E753AA
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):
dhash icon	64d29a9989b9a989 (1 x GCleaner)
Reporter	zbetcheckin
Tags:	32 exe gcleaner

Intelligence

File Origin

# of uploads :

# of downloads :

437

Origin country :

Vendor Threat Intelligence

Malware family:

stop

ID:

File name:

2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a.exe

Verdict:

Malicious activity

Analysis date:

2024-03-10 20:03:01 UTC

Tags:

gcleaner loader opendir vodkagats djvu ransomware stop vidar raccoonclipper

Link:

https://app.any.run/tasks/a7fc7f78-667e-493a-82fb-76159ef60286

Note:

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

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/478431/

Detection(s):

SecuriteInfo.com.W32.GenKryptik.GVVP.tr.29054.3616.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Searching for the window

Searching for synchronization primitives

Launching the default Windows debugger (dwwin.exe)

Sending an HTTP GET request to an infection source

Running batch commands

Creating a process with a hidden window

Connection attempt to an infection source

Launching a tool to kill processes

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

fingerprint

Link:

https://www.filescan.io/uploads/65ee11435cd908a33dad8d4f/reports/a96d26a6-2fae-490a-9f34-d4866d025130/overview

Verdict:

Malicious

Labled as:

Malware

Link:

https://www.hybrid-analysis.com/sample/2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a

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.

Malware family:

STOP Ransomware

Verdict:

Malicious

Link:

https://analyze.intezer.com/analyses/0657c04c-2db6-431e-9fc8-b2f8a04420cd

Result

Threat name:

GCleaner

Detection:

malicious

Classification:

troj.evad

Score:

100 / 100

Link:

https://www.joesandbox.com/analysis/1406215

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 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/2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a/

Threat name:

Win32.Trojan.Privateloader

Status:

Malicious

First seen:

2024-03-10 20:00:07 UTC

File Type:

PE (Exe)

Extracted files:

AV detection:

20 of 24 (83.33%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=fnz46elccoowz256mtpm5clw3zckxeemxnyykwlk3hdn3gidayna._file

Verdict:

malicious

GCleaner

d8fc9a7c6db8a578346d38375a467bdaec5e184149613bf7d1a4c5108ceb2b7c

GCleaner

d930ff3e1d83a347d05e9ccc86460e3ba2463a7284471081ff6c578ff5c6133a

GCleaner

edf1e3dcedbd126aab837c69aa8b81dd3767df139b0d17c1fafcac5a84627fa1

GCleaner

+ 5 additional samples on MalwareBazaar

Result

Malware family:

gcleaner

Score:

10/10

Tags:

family:gcleaner loader

Link:

https://tria.ge/reports/240310-yqyvksba33/

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

Link:

https://www.unpac.me/results/494b78a5-02f3-4b44-b449-04f738cceac9/

Parent samples :
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SH256 hash:

2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a

MD5 hash:

679f8f09e36c8e01467d665b3cc125c2

SHA1 hash:

936b70906d011f4888e249a52f0544e8836f9a70

Link:

https://www.unpac.me/results/494b78a5-02f3-4b44-b449-04f738cceac9/

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/2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a

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_Smokeloader_3687686f 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 2b73cf1162139d6cebbe64dece8976de44ab908cbb7185596ad9c6dd9903061a

(this sample)

Delivery method

Distributed via web download

Cape

https://www.capesandbox.com/analysis/478431/

URLhaus

https://urlhaus.abuse.ch/url/2755494/

URLhaus

https://urlhaus.abuse.ch/url/2755475/

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_PIE	Missing Position-Independent Executable (PIE) Protection	high

Reviews

ID	Capabilities	Evidence
WIN_BASE_API	Uses Win Base API	KERNEL32.dll::TerminateProcess KERNEL32.dll::FindNextVolumeMountPointW KERNEL32.dll::LoadLibraryW KERNEL32.dll::LoadLibraryA KERNEL32.dll::GetStartupInfoW KERNEL32.dll::GetCommandLineW
WIN_BASE_EXEC_API	Can Execute other programs	KERNEL32.dll::WriteConsoleOutputCharacterA KERNEL32.dll::ScrollConsoleScreenBufferW KERNEL32.dll::GetConsoleAliasExesLengthA KERNEL32.dll::GetConsoleDisplayMode
WIN_BASE_IO_API	Can Create Files	KERNEL32.dll::CreateHardLinkA KERNEL32.dll::GetFileAttributesA
WIN_BASE_USER_API	Retrieves Account Information	KERNEL32.dll::DnsHostnameToComputerNameA

Comments

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zbet commented on 2024-03-10 19:59:32 UTC

url : hxxp://5.42.65.115/download.php?pub=inte/