MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b6140ac8bac8defcb5a9ed1525aa3dabe86801373e7f9561a086b25c8358a01e. 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: b6140ac8bac8defcb5a9ed1525aa3dabe86801373e7f9561a086b25c8358a01e
SHA3-384 hash: de26ecad2036d53b72bf4b98ef0fdd8a601348b794592e2726fa772df7dc8e76d82645b237b0a8ff505803c940cd4118
SHA1 hash: 1ea2d710c09a0e50c2e0d3483b595fe86142b1d5
MD5 hash: 1e49573d0a13facb3758afacd2ff36fc
humanhash: december-yellow-alaska-pasta
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:2'599'736 bytes
First seen:2023-06-17 21:17:02 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 80417b621299e3e1de617305557a3c68 (48 x GCleaner, 44 x Backdoor.TeamViewer, 31 x Socks5Systemz)
ssdeep 49152:s6dKT2swK/r4+7y66TQT+RrqJ85xERdUwT5nUJd/V8LEenwDOZ:LdM2UvqETEqcytmd/V0EtDOZ
TLSH T1DEC53393C36288B1D4638BF0BE375A248B57BE7669370048339DB56C1B772D20C9A767
TrID 80.3% (.EXE) Inno Setup installer (109740/4/30)
10.3% (.EXE) Win32 Executable Delphi generic (14182/79/4)
3.2% (.EXE) Win32 Executable (generic) (4505/5/1)
1.5% (.EXE) Win16/32 Executable Delphi generic (2072/23)
1.4% (.EXE) OS/2 Executable (generic) (2029/13)
File icon (PE):PE icon
dhash icon 01f8c0e8e8bcfc00 (25 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 :
1
# of downloads :
279
Origin country :
US US
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-06-17 21:18:03 UTC
Tags:
installer gcleaner
Link:
https://app.any.run/tasks/9da7a86a-58ac-463f-bdf3-c3938827b54a

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/399888/
Detection(s):
SecuriteInfo.com.Trojan.DownLoader25.56768.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
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/91224/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
greyware installer lolbin overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/648e22dfce20f07ce9ee0f2f/reports/e4340cfc-2b6d-4a3b-b96f-6a48ee979acb/overview
Verdict:
Malicious
Labled as:
Win/grayware_confidence_60%
Link:
https://www.hybrid-analysis.com/sample/b6140ac8bac8defcb5a9ed1525aa3dabe86801373e7f9561a086b25c8358a01e
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/7721339b-7ecf-413b-ab5a-ceaf0a6d6166
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1256610
Signature
Antivirus / Scanner detection for submitted sample
Antivirus detection for dropped file
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
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 889630 Sample: file.exe Startdate: 17/06/2023 Architecture: WINDOWS Score: 100 47 45.12.253.98 CMCSUS Germany 2->47 49 Snort IDS alert for network traffic 2->49 51 Found malware configuration 2->51 53 Antivirus detection for URL or domain 2->53 55 7 other signatures 2->55 10 file.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\...\is-45FQS.tmp, PE32 10->31 dropped 13 is-45FQS.tmp 10 24 10->13         started        process6 file7 33 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 13->33 dropped 35 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 13->35 dropped 37 C:\Users\user\AppData\Local\...\_RegDLL.tmp, PE32 13->37 dropped 39 6 other files (5 malicious) 13->39 dropped 16 Rec617.exe 24 13->16         started        process8 dnsIp9 41 45.12.253.56, 49683, 80 CMCSUS Germany 16->41 43 45.12.253.72, 49684, 80 CMCSUS Germany 16->43 45 45.12.253.75, 49685, 80 CMCSUS Germany 16->45 29 C:\Users\user\AppData\...PApQCBviC89Bq.exe, PE32 16->29 dropped 20 EPApQCBviC89Bq.exe 16->20         started        23 cmd.exe 1 16->23         started        file10 process11 signatures12 57 Multi AV Scanner detection for dropped file 20->57 25 taskkill.exe 1 23->25         started        27 conhost.exe 23->27         started        process13
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/b6140ac8bac8defcb5a9ed1525aa3dabe86801373e7f9561a086b25c8358a01e/
Threat name:
Win32.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2023-06-17 21:18:06 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
5 of 37 (13.51%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=wykavsf2zdppznnj5ukslkr5vpugqajxhz7zkynaq2zfza2yuapa._file
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230617-z43alacf5w/
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:
6c12cb230fc0048c2412a8ec276c4ef81f5bef29e1312309eee35908e675a143
MD5 hash:
c79f08f095df7f682cf2e81bb62576bf
SHA1 hash:
157327d1227dd9698fe607fcbd5d56dcb799cf63
Detections:
Nymaim
Create hunting rule
win_nymaim_g0
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/86846309-66e1-416c-9183-1c2d252cae51/
SH256 hash:
5012806c307b66419847212b3dbfbab187242535522ffb6e844fc90cdde714e3
MD5 hash:
a9081abac596360efecf5e7c66487359
SHA1 hash:
a7a6549aefe707dd376a062db638f45361d5a8c5
Link:
https://www.unpac.me/results/86846309-66e1-416c-9183-1c2d252cae51/
SH256 hash:
b6140ac8bac8defcb5a9ed1525aa3dabe86801373e7f9561a086b25c8358a01e
MD5 hash:
1e49573d0a13facb3758afacd2ff36fc
SHA1 hash:
1ea2d710c09a0e50c2e0d3483b595fe86142b1d5
Link:
https://www.unpac.me/results/86846309-66e1-416c-9183-1c2d252cae51/
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/b6140ac8bac8defcb5a9ed1525aa3dabe86801373e7f9561a086b25c8358a01e

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/399888/
  
URLhaus
https://urlhaus.abuse.ch/url/2509470/

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