MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 83ffccb23ae448ae1199d5df4346b5532c3bab16b5006122e6d9387cb91e87eb. 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: 13


Intelligence 13 IOCs YARA 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 83ffccb23ae448ae1199d5df4346b5532c3bab16b5006122e6d9387cb91e87eb
SHA3-384 hash: 2b669509b4eb3a01f88be1f2b44b9ed54f051dd9d713fe6a3fc4615620f714abe9dc3b215cac067c3f411c791f60c500
SHA1 hash: 8aca77f396fcc76202b175aa0ab97b232d40256e
MD5 hash: d8296869d5da253e2bc6b40bad662be7
humanhash: edward-idaho-helium-pizza
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'020'175 bytes
First seen:2023-05-11 19:54:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash da86ff6d22d7419ae7f10724a403dffd (1'679 x GCleaner, 1 x Socks5Systemz)
ssdeep 49152:snBN5lIT14NRIySisVsRwrLu83o6RC66kAG5cL:sBNHlTI/yaT0kXcL
Threatray 3'110 similar samples on MalwareBazaar
TLSH T1F49533A2FF958635D82ED7308DB6420119B6FCB554FE6DAC37DC128E1EEE0A19C10786
TrID 81.0% (.EXE) Inno Setup installer (109740/4/30)
10.4% (.EXE) Win32 Executable Delphi generic (14182/79/4)
3.3% (.EXE) Win32 Executable (generic) (4505/5/1)
2.2% (.MZP) WinArchiver Mountable compressed Archive (3000/1)
1.4% (.EXE) Generic Win/DOS Executable (2002/3)
File icon (PE):PE icon
dhash icon b298acbab2ca7a72 (2'327 x GCleaner, 1'631 x Socks5Systemz, 67 x RedLineStealer)
Reporter andretavare5
Tags:exe gcleaner


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

Intelligence

File Origin
# of uploads :
1
# of downloads :
286
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-05-11 19:56:24 UTC
Tags:
installer gcleaner
Link:
https://app.any.run/tasks/e5167a50-2787-4140-8b8b-428c39679094

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/388541/
Detection(s):
PUA.Win.Packer.Overlay-1
Create hunting rule

SecuriteInfo.com.Win32.Malware-gen.24316.29731.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a file in the %temp% subdirectories
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Creating a file in the Program Files subdirectories
Moving a file to the Program Files subdirectory
Modifying a system file
Creating a file in the %AppData% subdirectories
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Creating a file in the Windows subdirectories
Launching a tool to kill processes
Sending an HTTP GET request to an infection source
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/83578/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware installer overlay packed packed
Link:
https://www.filescan.io/uploads/645d4818ab1bf6e404654b9c/reports/ea5d12b2-e77a-435c-98d6-1aceeab7d03e/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_70%
Link:
https://www.hybrid-analysis.com/sample/83ffccb23ae448ae1199d5df4346b5532c3bab16b5006122e6d9387cb91e87eb
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/52563d72-d260-4bc0-8d95-4718c7c0685f
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1231092
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)
Found malware configuration
Machine Learning detection for dropped file
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/83ffccb23ae448ae1199d5df4346b5532c3bab16b5006122e6d9387cb91e87eb/
Threat name:
Win32.Trojan.Nekark
Create hunting rule
Status:
Malicious
First seen:
2023-05-11 19:55:08 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
14 of 24 (58.33%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=qp74zmr24rek4emz2xpugrvvkmwdxkywwuagcixg3e4hzoi6q7vq._file
Verdict:
malicious
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121a989787cc300ec5239c8e4da3823e38d302604f0b14ccb1c560294b33f462
GCleaner
15d6bf017cea7a3c15d078cc48fe69e579fe6ae3dfc170fb0dd4a9f27926e19e
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37ccdde661e06ba2901c01b94c96a05e1ba77863ed75aceee5c89c7c402f9f39
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38cf550bdfc6ee19117649f70a28eba50610a4abc737c3bb908935ffce2620b6
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59d0a86e29a877fe6ab943b03f01a553274e626eb5f2da49605b98aaa23e6ab4
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6ea56da5d33549744187c65f81749be722d2e5d8ae1bc93e0d61d2e8d2fb74cf
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7c4af0439fa5ea83916252977f59415c652b7efe851c79a17bda55f1b77a890f
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819c80050c2c41c85c28f745b153bef2ebe52a8c468182f5e3fe44a816fca109
GCleaner
8ffab91769a6ff3e57f1c5b26f580e0fe41e6dfe5cf05154dbcb77f181508d49
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bf7d9b82ff0c3842fbd1dff7ffa94389d376af2b5d01ce504072f7985b556325
GCleaner
+ 3'100 additional samples on MalwareBazaar
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230511-ym477aad64/
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:
161ecf1ebf754c8384f841b3959c8505dc8eebbf80a0bd0498380ba0dadcc24d
MD5 hash:
e31e65578f4e3ce639c58be182bee3e9
SHA1 hash:
72d00cedc4a2d52cbf6cd8a8cd39c7c57b5225a7
Detections:
Nymaim
Create hunting rule
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/237ccbfe-c17d-47f4-a2be-f3cc17cdbf97/
SH256 hash:
bcd09d12dcac7c85244642bc9208fc5cc18ced67be8423c3fff765c4c34de360
MD5 hash:
6e2eea9edcaf7852828a4e0e708e81bf
SHA1 hash:
a8f20eb6ed18c65852b0e34b27ee5440e9146c2a
Link:
https://www.unpac.me/results/237ccbfe-c17d-47f4-a2be-f3cc17cdbf97/
SH256 hash:
0668272b0f12c321f3e42c29d4a715d899b33076cb14dc4ee738808631ce14a3
MD5 hash:
e3da819f5c670ff95e5815c3090a4d69
SHA1 hash:
92ee5d1b3bad4f68d463a659a2b8d11b5a2933a6
Link:
https://www.unpac.me/results/237ccbfe-c17d-47f4-a2be-f3cc17cdbf97/
SH256 hash:
83ffccb23ae448ae1199d5df4346b5532c3bab16b5006122e6d9387cb91e87eb
MD5 hash:
d8296869d5da253e2bc6b40bad662be7
SHA1 hash:
8aca77f396fcc76202b175aa0ab97b232d40256e
Link:
https://www.unpac.me/results/237ccbfe-c17d-47f4-a2be-f3cc17cdbf97/
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/83ffccb23ae448ae1199d5df4346b5532c3bab16b5006122e6d9387cb91e87eb

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:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:win_gcleaner_auto
Create hunting rule
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
Cape
Cape
https://www.capesandbox.com/analysis/388541/
  
URLhaus
https://urlhaus.abuse.ch/url/2509470/

Comments