MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f6cf41d81be70a37e2e01fe2fe85fa63fd6a7be1aa6de5dbf2c78c098de205c7. 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 3 File information Comments

SHA256 hash: f6cf41d81be70a37e2e01fe2fe85fa63fd6a7be1aa6de5dbf2c78c098de205c7
SHA3-384 hash: dbbeb826d86d4fc63c0cdb12916c9c8e4ecb5829132a721d814e0ec9df0d9d5088b670337cab427a5f3fece315cd87bf
SHA1 hash: d407bd8bec722a8bff9e4e5a5bdcfd087fc4214f
MD5 hash: 3faf3ab3a7f511a727e9bd0d458575c0
humanhash: idaho-butter-white-butter
File name:file
Download: download sample
Signature GCleaner
File size:2'899'501 bytes
First seen:2023-02-17 05:01:03 UTC
Last seen:2023-02-17 05:30:00 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'514 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:vNojzL5qeQ2FekbSvpog54TVKnNIfk5h2p2LWVbRiEOydAbusGxl7uLCgv2MR:Vojn/3RGKrTVxfgUILGLdHsGLOv2MR
Threatray 7'269 similar samples on MalwareBazaar
TLSH T171D522CA4815C4E2E7FEEFF2BC2E80B07997BE5BD5E41453705ABD2A763210E908D509
TrID 78.6% (.EXE) Inno Setup installer (109740/4/30)
10.1% (.EXE) Win32 Executable Delphi generic (14182/79/4)
3.2% (.EXE) Win32 Executable (generic) (4505/5/1)
2.1% (.MZP) WinArchiver Mountable compressed Archive (3000/1)
1.4% (.EXE) Win16/32 Executable Delphi generic (2072/23)
File icon (PE):PE icon
dhash icon f8f0f8f8f8f8f800 (13 x GCleaner)
Reporter andretavare5
Tags:exe gcleaner


Avatar
andretavare5
Sample downloaded from http://45.12.253.74/pineapple.php?pub=mixinte

Intelligence


File Origin
# of uploads :
10
# of downloads :
229
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-17 05:03:26 UTC
Tags:
installer

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Using the Windows Management Instrumentation requests
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Searching for the window
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Sending a custom TCP request
Modifying a system file
Creating a file in the %AppData% subdirectories
Sending an HTTP GET request
Running batch commands
Creating a process with a hidden window
Launching a tool to kill processes
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
greyware installer overlay packed shell32.dll
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
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)
Machine Learning detection for dropped file
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Obfuscated command line found
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 810490 Sample: file.exe Startdate: 17/02/2023 Architecture: WINDOWS Score: 100 48 45.12.253.98 CMCSUS Germany 2->48 50 Snort IDS alert for network traffic 2->50 52 Multi AV Scanner detection for domain / URL 2->52 54 Antivirus detection for URL or domain 2->54 56 5 other signatures 2->56 10 file.exe 2 2->10         started        signatures3 process4 file5 32 C:\Users\user\AppData\Local\Temp\...\file.tmp, PE32 10->32 dropped 60 Obfuscated command line found 10->60 14 file.tmp 17 17 10->14         started        signatures6 process7 file8 34 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 14->34 dropped 36 C:\Users\user\AppData\Local\...\_isdecmp.dll, PE32 14->36 dropped 38 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 14->38 dropped 40 7 other files (6 malicious) 14->40 dropped 17 FRec217.exe 24 14->17         started        process9 dnsIp10 42 45.12.253.56, 49701, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49702, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49703, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\cWxB5AL4oubNi.exe, PE32 17->30 dropped 21 cWxB5AL4oubNi.exe 17->21         started        24 cmd.exe 1 17->24         started        file11 process12 signatures13 58 Multi AV Scanner detection for dropped file 21->58 26 taskkill.exe 1 24->26         started        28 conhost.exe 24->28         started        process14
Threat name:
Win32.Downloader.GCleaner
Status:
Malicious
First seen:
2023-02-17 05:02:09 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
11 of 25 (44.00%)
Threat level:
  3/5
Result
Malware family:
gcleaner
Score:
  10/10
Tags:
family:gcleaner discovery loader
Behaviour
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Program Files directory
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
GCleaner
Malware Config
C2 Extraction:
45.12.253.56
45.12.253.72
45.12.253.98
45.12.253.75
Unpacked files
SH256 hash:
edb11726deee81fbe64e6473df77510c7b4fe83a4081a1cf9a814f6bc3b17959
MD5 hash:
c56f7ee05d5b5f0aa7fd656fb807828e
SHA1 hash:
86ce2e9f85c1eeff349cf7ed738367d3d8034a71
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
2f0744d65a1231229c5c380cb87342d460f92477df0c073f962ca7b8ca46f7d9
MD5 hash:
7bf3060148e48ed93f57fe980aada2c1
SHA1 hash:
e7b505b374a2bc1f5c371f1727c29d27c31ce121
SH256 hash:
570efdfd1b229215a8a39ba790fd363538254f66f22ff23966f229ef53bf8a76
MD5 hash:
7b5921dbea58bd881123132d9394ce58
SHA1 hash:
9abcb7d8da7e979717419831790f4ad2113fa094
SH256 hash:
202cf8df66bab7e889bcfbd73d8aad4464d1a7d74abf4af6bd582a30aa7242c0
MD5 hash:
844783e02e063789bafef9555c14d769
SHA1 hash:
4ab58f68b2372f0079d44f7c4692362bb4041f6e
SH256 hash:
f6cf41d81be70a37e2e01fe2fe85fa63fd6a7be1aa6de5dbf2c78c098de205c7
MD5 hash:
3faf3ab3a7f511a727e9bd0d458575c0
SHA1 hash:
d407bd8bec722a8bff9e4e5a5bdcfd087fc4214f
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:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:shellcode
Author:nex
Description:Matched shellcode byte patterns
Rule name:win_gcleaner_auto
Author:Felix Bilstein - yara-signator at cocacoding dot com
Description:Detects win.gcleaner.

File information


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

  
Dropped by
PrivateLoader
  
Delivery method
Distributed via drive-by

Comments