MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4d676a7138edbc5021f59051cb50217a7e5481e35c29a6f12ea5e4bc19651413. 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: 4d676a7138edbc5021f59051cb50217a7e5481e35c29a6f12ea5e4bc19651413
SHA3-384 hash: afb012e7cf847fad98b28e0cac0a9ba2fff5d56b94f5eeb5eb11a702f2be76a2230ad2e6251b65e641e1d185ce07bcd5
SHA1 hash: 0a0949294ea805357d398c115953bc2c55a54c86
MD5 hash: b5b2c3c59cb7659233b0b413cc3f3a1f
humanhash: arizona-stream-jig-oscar
File name:file
Download: download sample
Signature GCleaner
File size:2'174'570 bytes
First seen:2023-01-31 03:46:38 UTC
Last seen:2023-01-31 05:14:54 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:ufN/bzxKp1lVP4rwabE+BOd5dMNgJAYLCgv2MR:AlyP5AED5mSJ5v2MR
TLSH T108A53351B69193B9F0438E700279071B6AA7BCBB60B13A59724E379D3F27B409D8F702
TrID 75.1% (.EXE) Inno Setup installer (109740/4/30)
9.7% (.EXE) Win32 Executable Delphi generic (14182/79/4)
4.5% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.0% (.EXE) Win32 Executable (generic) (4505/5/1)
2.0% (.MZP) WinArchiver Mountable compressed Archive (3000/1)
File icon (PE):PE icon
dhash icon a4d6caeab2928ed4 (97 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 :
45
# of downloads :
203
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-31 03:49:38 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
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 process
Launching a tool to kill processes
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
No Threat
Threat level:
  2/10
Confidence:
80%
Tags:
greyware 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
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 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: 794871 Sample: file.exe Startdate: 31/01/2023 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 submitted file 2->52 54 Detected unpacking (changes PE section rights) 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 18 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 finalrecovery.exe 24 14->17         started        process9 dnsIp10 42 45.12.253.56, 49692, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49693, 80 CMCSUS Germany 17->44 46 2 other IPs or domains 17->46 30 C:\Users\user\AppData\...\Vsrg1XfSUdVW.exe, PE32 17->30 dropped 21 Vsrg1XfSUdVW.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.Trojan.Privateloader
Status:
Malicious
First seen:
2023-01-31 03:47:09 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
13 of 26 (50.00%)
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
Loads dropped DLL
Executes dropped EXE
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:
4acee8d75363b140ded7422447a267c53d37a192d008e3bf0823a9b995330ba0
MD5 hash:
77cdf9d95b1c84079f9e2b8a5a08320a
SHA1 hash:
b08d34b2b0a5279f6ee36fb339a87830248a9d1f
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
fbbef7878bdf0efa8b98dd8495d248d1707e37b009de5d1e36120f155601becf
MD5 hash:
9020cfb6698656f6a4cd68b5550eb3c9
SHA1 hash:
e8ecef89d5486903fea920e10e587b05753ddce8
SH256 hash:
c76427a6adc6ed8e01e223984c5e9ce81661e500efa78ddb53919c2dc0bec16b
MD5 hash:
be76bd11a1d3bd00baa462b7c08ee2f0
SHA1 hash:
b1836668ec5101d22196782f8334e8dba973e1b3
SH256 hash:
dcfaf8c6df573d12223e0fdfa31bb04cc95e722dc9de0d69a58492ba2d136f22
MD5 hash:
fd11d417ad04c2200e71384ba0d34bae
SHA1 hash:
91e01f483179158b8ceac96d30b620ca79d0adfd
SH256 hash:
4d676a7138edbc5021f59051cb50217a7e5481e35c29a6f12ea5e4bc19651413
MD5 hash:
b5b2c3c59cb7659233b0b413cc3f3a1f
SHA1 hash:
0a0949294ea805357d398c115953bc2c55a54c86
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