MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b26ad6c1a2b8ffdce829114d9c4e35a5edb817cb2eb1fd623c0b52a2c824dbcc. 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: b26ad6c1a2b8ffdce829114d9c4e35a5edb817cb2eb1fd623c0b52a2c824dbcc
SHA3-384 hash: 349f6cda87b0e98f253bff7ef436e576c6f4a278b9e778b080a4187cef6a093c19e204a971e7bd005497db4c3e577047
SHA1 hash: 2dd8e04487e7258c15d10be4584276471aa3f3e1
MD5 hash: 919b183d3b4f9b2ac14ffd4c7c4bf4ab
humanhash: winner-three-michigan-eighteen
File name:file
Download: download sample
Signature GCleaner
File size:3'374'799 bytes
First seen:2023-02-16 05:03:37 UTC
Last seen:2023-02-16 05:44:59 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'446 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 98304:JHa/VD9ohMOxXDJCtDxM6HtbQ9OBGv2MR:da/9/OlItDiJ9OBGvjR
TLSH T1CEF5127C7505D86DC280BEB48C3A98EB6CD76EF3E994946270DDBF3E91381849B19603
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 :
9
# of downloads :
222
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-16 05:09:48 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 tool to kill processes
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
80%
Tags:
greyware installer 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
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 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: 809675 Sample: file.exe Startdate: 16/02/2023 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 dropped file 2->54 56 6 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 FRec216.exe 20 14->17         started        process9 dnsIp10 42 45.12.253.56, 49695, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49696, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49697, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\Roaming\...\YEZ0OAg.exe, PE32 17->30 dropped 21 YEZ0OAg.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:
Suspicious
First seen:
2023-02-16 05:04:12 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
14 of 38 (36.84%)
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:
f37e750a40db311b48c1edd8165e753e40e5611eda15ca96db23444edbd4595b
MD5 hash:
344d8d052044eaa93ede02ac4d3eedd4
SHA1 hash:
904978dcc8166ff58ba91eb42501176f02f8e20a
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
6cc310c07284870fae48b2dfb87409c036ea053ec5367c0bd3ef7090f1c8e094
MD5 hash:
99f6361eb484939df813faad115b2f8a
SHA1 hash:
ec02ee1ea34f7ff58d520f2b7ffeb427f899d911
SH256 hash:
129defed4797087d20f5122af1a8de08502fb77dd713ea1cf84ff038d167116f
MD5 hash:
96f65b7be79ebbf77c00e35fea942a6a
SHA1 hash:
d4f215f4b498cd5848e3b1dd55a96dfb41fc7a7f
SH256 hash:
9d0dd78cf634cda9c242a310c846449761374543116fb73b7383c2a819950fd4
MD5 hash:
15d3de80916329e74a3944045833e2ae
SHA1 hash:
3e42f192befa8418da8478553dd32c7991a28243
SH256 hash:
b26ad6c1a2b8ffdce829114d9c4e35a5edb817cb2eb1fd623c0b52a2c824dbcc
MD5 hash:
919b183d3b4f9b2ac14ffd4c7c4bf4ab
SHA1 hash:
2dd8e04487e7258c15d10be4584276471aa3f3e1
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