MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d66cdab94fb0231de6ddd6201c606115b2fa8174cc9f25816aabcb3347acc398. 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

SHA256 hash: d66cdab94fb0231de6ddd6201c606115b2fa8174cc9f25816aabcb3347acc398
SHA3-384 hash: 498785973058d3d412b066c672a53b89546e3b907d2ec750b76b872d10dda16a6cf489c0fc09b5b74f33c2eddb95c21b
SHA1 hash: 1c00733dbeae30efde5a4b25cd54106d47a79516
MD5 hash: eeae06fd1bf4581cc65c8348d9a3d702
humanhash: blue-sierra-florida-michigan
File name:file
Download: download sample
Signature GCleaner
File size:3'148'819 bytes
First seen:2023-02-13 19:32:07 UTC
Last seen:2023-02-13 20:00:01 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'445 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:rdHCizbDh42bSN+ITY2KU5N0SNCtXcFtSTc5E7iCsPJSLpyRLCgv2MR:JHCeXh4nI2KQSRXcFQTcvZx009v2MR
TLSH T188E5127C7219C9ADD680BD748836A8E75CEB6DE3E9A4A02230DD7F3F517D2C8460A147
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 :
8
# of downloads :
5'604
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-13 19:43:15 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
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
Sending a custom TCP request
Running batch commands
Creating a process with a hidden window
Using the Windows Management Instrumentation requests
Launching a tool to kill processes
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckCmdLine
Gathering data
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 submitted file
Obfuscated command line found
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 806546 Sample: file.exe Startdate: 13/02/2023 Architecture: WINDOWS Score: 100 47 45.12.253.98 CMCSUS Germany 2->47 49 Snort IDS alert for network traffic 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 5 other signatures 2->55 10 file.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\Temp\...\file.tmp, PE32 10->31 dropped 57 Obfuscated command line found 10->57 14 file.tmp 18 17 10->14         started        signatures6 process7 file8 33 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 14->33 dropped 35 C:\Users\user\AppData\Local\...\_isdecmp.dll, PE32 14->35 dropped 37 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 14->37 dropped 39 7 other files (6 malicious) 14->39 dropped 17 FRec213.exe 20 14->17         started        process9 dnsIp10 41 45.12.253.56, 49698, 80 CMCSUS Germany 17->41 43 45.12.253.72, 49699, 80 CMCSUS Germany 17->43 45 45.12.253.75, 49700, 80 CMCSUS Germany 17->45 29 C:\Users\user\AppData\Roaming\...\tiiwZ.exe, PE32 17->29 dropped 21 cmd.exe 1 17->21         started        23 tiiwZ.exe 17->23         started        file11 process12 process13 25 taskkill.exe 1 21->25         started        27 conhost.exe 21->27         started       
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2023-02-13 19:33:15 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Verdict:
malicious
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:
255615b2ed0ef4d07e4bfe1c6d1e79df481011c1e55edf0841156d623d41e619
MD5 hash:
e5c49e614439e87efa27c08b5dfba945
SHA1 hash:
b681d09f7d60a4a426bad67b4b9d2dd01a04abff
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
62d7c943fbfc43627dcccbdd11249126fda8369e02e5622475edfef2cf83156d
MD5 hash:
5647c8f2569de7986cc55b399f99d33b
SHA1 hash:
a98962b2e8566c2e21d4e800d4006e37bb5590f5
SH256 hash:
829bad6ad99d0dce4d3c628ef8d5764225fe1c164f5ab38295885dfbd83a3da6
MD5 hash:
46326643e4847cbb97f1f39df97277f4
SHA1 hash:
522bc8afb60dfe53c6241480abe542bb5c256a79
SH256 hash:
d66cdab94fb0231de6ddd6201c606115b2fa8174cc9f25816aabcb3347acc398
MD5 hash:
eeae06fd1bf4581cc65c8348d9a3d702
SHA1 hash:
1c00733dbeae30efde5a4b25cd54106d47a79516
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