MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a6b57b94e5a97ac7076160af33e18212d0df35f8ac7a0a7b01cea2ce8c1f57b6. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a6b57b94e5a97ac7076160af33e18212d0df35f8ac7a0a7b01cea2ce8c1f57b6
SHA3-384 hash: 4540354c20d390fec76816d07301c1c8c9b2cc99f80623e3f097c908eda4fac6cb75eee3fc49f12a1a9040f58ef3a0ee
SHA1 hash: ffb579c801cef24ee38cc97cef8490400c0ddbff
MD5 hash: 946b2fb4fbd6036de0432ec0c3aeb43b
humanhash: august-venus-ink-speaker
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'674'670 bytes
First seen:2023-02-08 05:30:12 UTC
Last seen:2023-02-08 05:58:50 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'446 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:rdHyxtn70TbPPnbIBnNfPfprhS5y5Gi2F0DlUmbiqghRGR9zGwLLCgv2MR:JHOmXPPncNPfCUirSiurv2MR
TLSH T1EBC5123CB105C5ADC280FEB4CD3AA4E75CD76EE3A990A42270DC7F3F517A289961A117
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 14b0b0fceeaa3b18 (363 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 :
12
# of downloads :
211
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-08 05:32:05 UTC
Tags:
installer
Link:
https://app.any.run/tasks/e75fbf32-6442-4072-ae35-444590ea82bf

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Nymaim
Create hunting rule
Link:
https://www.capesandbox.com/analysis/361777/
Detection(s):
SecuriteInfo.com.Trojan.Moneyinst.746.21331.248.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
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
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
Using the Windows Management Instrumentation requests
Creating a file in the Windows subdirectories
Launching a tool to kill processes
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Link:
https://dragonfly.certego.net/analysis/66390/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
No Threat
Threat level:
  2/10
Confidence:
80%
Tags:
greyware overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63e33397416d38777a7ac814/reports/1aa2471b-bf9b-4f73-9a96-df04cf408f31/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/a6b57b94e5a97ac7076160af33e18212d0df35f8ac7a0a7b01cea2ce8c1f57b6
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/35ea7836-35d8-4e67-95dd-cb614d798805
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1168478
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)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Obfuscated command line found
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 801258 Sample: file.exe Startdate: 08/02/2023 Architecture: WINDOWS Score: 100 48 45.12.253.98 CMCSUS Germany 2->48 50 Snort IDS alert for network traffic 2->50 52 Antivirus detection for URL or domain 2->52 54 Multi AV Scanner detection for submitted file 2->54 56 4 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:\Program Files (x86)\...\FRec28.exe, PE32 14->34 dropped 36 C:\Users\user\AppData\Local\...\_shfoldr.dll, PE32 14->36 dropped 38 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 14->38 dropped 40 7 other files (none is malicious) 14->40 dropped 17 FRec28.exe 24 14->17         started        process9 dnsIp10 42 45.12.253.56, 49703, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49704, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49705, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\yfvFC79ZyTKaQ.exe, PE32 17->30 dropped 21 yfvFC79ZyTKaQ.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
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/a6b57b94e5a97ac7076160af33e18212d0df35f8ac7a0a7b01cea2ce8c1f57b6/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-02-08 05:31:09 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=u22xxfhfvf5mob3bmcxthymcclin6npyvr5au6ybz2rm5da7k63a._file
Verdict:
malicious
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230208-f7pzwshd26/
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:
7f0d5d8e74f7aecb037b98076266660cb6c3aa4ebf69f1f2cf626615a79030c6
MD5 hash:
e2c5a7a8d83ab9485153d3cd6896be77
SHA1 hash:
2340d047948979de262b887ee8ed1bde99420bc3
Detections:
win_nymaim_g0
Create hunting rule
Nymaim
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/ef28948f-9f02-4ba8-8977-1c32f3cdebba/
SH256 hash:
f98a1812d6485bc9c40d59b0cf4e88bbfb483e61478b310b62be13572e40ddd4
MD5 hash:
3688f1936e2b5e2d98514fa415435484
SHA1 hash:
53997a7ef842a3bbb0fa03910354319ed462ca27
Link:
https://www.unpac.me/results/ef28948f-9f02-4ba8-8977-1c32f3cdebba/
SH256 hash:
3fdbe533f13dfc838e2cebada9f8f4945de22fde06e718ee9d4cca07407b7c7b
MD5 hash:
c623a373e7cc0f44307a4662fa3384d7
SHA1 hash:
40aa470d77d9674b74d3858522ec193b63fe332e
Link:
https://www.unpac.me/results/ef28948f-9f02-4ba8-8977-1c32f3cdebba/
SH256 hash:
a6b57b94e5a97ac7076160af33e18212d0df35f8ac7a0a7b01cea2ce8c1f57b6
MD5 hash:
946b2fb4fbd6036de0432ec0c3aeb43b
SHA1 hash:
ffb579c801cef24ee38cc97cef8490400c0ddbff
Link:
https://www.unpac.me/results/ef28948f-9f02-4ba8-8977-1c32f3cdebba/
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/a6b57b94e5a97ac7076160af33e18212d0df35f8ac7a0a7b01cea2ce8c1f57b6

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/361777/
  
URLhaus
https://urlhaus.abuse.ch/url/2509470/

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