MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a5bf97d2e228cd4ebeb835d844a3949867a703bc874f06d9ee461c24a2b13adc. 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

SHA256 hash: a5bf97d2e228cd4ebeb835d844a3949867a703bc874f06d9ee461c24a2b13adc
SHA3-384 hash: 2729e5f6803497b1574ac3c93326c7c7b6ba0f03e709fc79370e87aaddc7c3ba28dbf56ba23819367d8743d889f39af1
SHA1 hash: 87ac046d460a1de177f31c616226df2ab8d3e656
MD5 hash: 330846f9ee7235792f46a53b57ad2654
humanhash: black-ack-item-ink
File name:file
Download: download sample
Signature GCleaner
File size:2'208'279 bytes
First seen:2023-01-31 22:01:58 UTC
Last seen:2023-01-31 22:28:41 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:C2NQ8xlWwcU1VsVPMvWoY1Tb1NPRPxNwZJLj6F+oLCgv2MR:dNrMUDw0uoY1VNpQZVj6Mgv2MR
TLSH T1DEA53309E0F5943BCA655F38770643033A397EA65036282D718F7A5E8BB73E0946DB36
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 :
13
# of downloads :
214
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-31 22:05:10 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
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
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
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
greyware overlay packed shell32.dll
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.
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: 795523 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, 49706, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49707, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49708, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\bfmMBkwYQx.exe, PE32 17->30 dropped 21 bfmMBkwYQx.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 22:02:09 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
16 of 26 (61.54%)
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:
950000f129b707b794ff1d8d3225bca48c63b9a5e5d038c5105ed5f28ca40fb5
MD5 hash:
bd10163dc4c287ce214255b520f1c623
SHA1 hash:
d60acf554531ee7839b5e52bf6f2a93d0225d0ad
Detections:
Nymaim
SH256 hash:
5aee27b77a81b5d55e9caac69cf6983edfa8a8e65eccc98e5715c3677533c5bb
MD5 hash:
03409e11d1ad9b5ca6ed3e3296c329b3
SHA1 hash:
bb7e68c6845748a7134f75ab360270f25862940d
SH256 hash:
f699fe0f25262908726aa12a0c88e3d5a09b0c6415aeeeb7faccbff60cd3f069
MD5 hash:
148b9ea46c05bc852700e46db3e15137
SHA1 hash:
ab18f006edf62c1d8d555b6e92bd2a8448420c0b
SH256 hash:
a5bf97d2e228cd4ebeb835d844a3949867a703bc874f06d9ee461c24a2b13adc
MD5 hash:
330846f9ee7235792f46a53b57ad2654
SHA1 hash:
87ac046d460a1de177f31c616226df2ab8d3e656
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