MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b1298ec9ff44e02af0c6d5d132c47aa89a97de749d29398ada458ee328a23a94. 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: b1298ec9ff44e02af0c6d5d132c47aa89a97de749d29398ada458ee328a23a94
SHA3-384 hash: af352f046e2fa63d97eaad99c87c78d95b9c673dd65ad4faffc9b61fd8752dc8dee94ff8731740833965d9b402d24858
SHA1 hash: 848bf5d68998314262768b99477165a82b00976b
MD5 hash: eeb32a877bfc609b1aa9958532f8245d
humanhash: pennsylvania-black-nuts-summer
File name:file
Download: download sample
Signature GCleaner
File size:2'055'392 bytes
First seen:2023-01-22 23:31:45 UTC
Last seen:2023-01-22 23:59:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'460 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 24576:k3LiEvV9MEHAankpayMFrtFTneq+zF43QuiPL3QMDcHR2B6z7nAqUr6qkVxADqWd:kb7V3dsurFPr3Q7LAWI06zsqUrn4xAp
TLSH T14D95129171809638E1E9AE32DE41485C25337D283F60731F6CE47E9B7BBF6C35A19262
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 c1c0d8ccb434cce8 (50 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 :
215
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-22 23:32:20 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
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
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:
92 / 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
Obfuscated command line found
Snort IDS alert for network traffic
Yara detected Nymaim
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 789387 Sample: file.exe Startdate: 23/01/2023 Architecture: WINDOWS Score: 92 48 45.12.253.98 CMCSUS Germany 2->48 50 Snort IDS alert for network traffic 2->50 52 Detected unpacking (changes PE section rights) 2->52 54 Detected unpacking (overwrites its own PE header) 2->54 56 3 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 22 16 10->14         started        signatures6 process7 file8 34 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 14->34 dropped 36 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 14->36 dropped 38 C:\Users\user\AppData\Local\...\_RegDLL.tmp, PE32 14->38 dropped 40 6 other files (5 malicious) 14->40 dropped 17 finalrecovery.exe 24 14->17         started        process9 dnsIp10 42 45.12.253.56, 49699, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49700, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49703, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\Roaming\...\2vd7T1.exe, PE32 17->30 dropped 21 2vd7T1.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:
2023-01-22 23:32:08 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
15 of 26 (57.69%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
gcleaner
Score:
  10/10
Tags:
family:gcleaner discovery loader
Behaviour
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Kills process with taskkill
Suspicious behavior: EnumeratesProcesses
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:
476df1745ed487802870a47d22b498766ea5ec1b879230da0d763c363d161984
MD5 hash:
28ea0e2f8743b0998c582a61ca371b4e
SHA1 hash:
4871635ad08075af7a003d8095e6208f59faf02e
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
455ec705b00800e2b475017c116c2a24173b38d30e99655380dde4266a9992c0
MD5 hash:
62afaa5a456bc371457e453af9f61e8e
SHA1 hash:
cca98e406753ac5a8b0e0aa601d35e8dec429c95
SH256 hash:
8e69ca3c94a51f10934658c0f7f5498cc6472d5b1552e68aea338fb9288cca7c
MD5 hash:
19c3cab64a4af018eea445f912ed0f46
SHA1 hash:
cb33567375926d35da337edf498d0c44613dc8d2
SH256 hash:
b1298ec9ff44e02af0c6d5d132c47aa89a97de749d29398ada458ee328a23a94
MD5 hash:
eeb32a877bfc609b1aa9958532f8245d
SHA1 hash:
848bf5d68998314262768b99477165a82b00976b
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