MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b90902d1d8e0ffa8a17aafaf6d74cf725393c59a852d4384fe2a588ca5112c68. 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: 12


Intelligence 12 IOCs YARA 3 File information Comments

SHA256 hash: b90902d1d8e0ffa8a17aafaf6d74cf725393c59a852d4384fe2a588ca5112c68
SHA3-384 hash: 572bed94461735b81024b0283f463cf718636dfd35d7d7587f4169b8547f9ccbc312c8e89c3b81572a323c16fd85489d
SHA1 hash: 7f30f05d3300c7a7df60902b058d6b727d344925
MD5 hash: d20bbeac93127b552084669d04af9b49
humanhash: aspen-magazine-virginia-virginia
File name:file
Download: download sample
Signature GCleaner
File size:1'824'225 bytes
First seen:2023-01-21 19:15:18 UTC
Last seen:2023-01-21 19:44:29 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:qlC8K/VxKbI7BdnkAVSlKvPSGLwM/IDptiGmmSYCCAkc7EXM:OC5Vx7dnnVSluwmI1tiGtS+AXEc
TLSH T19D853392FAB8463FC2966BF8796A94186F2B35112D747410F2FDA1CE5BF44C0121EB72
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 b9f8f2d2b6a8ec76 (42 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 :
18
# of downloads :
185
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-21 19:18:23 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:
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:
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: 789002 Sample: file.exe Startdate: 21/01/2023 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 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, 49689, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49690, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49691, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\eZKkEmvoeq5QU.exe, PE32 17->30 dropped 21 eZKkEmvoeq5QU.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.Injuke
Status:
Malicious
First seen:
2023-01-21 19:16:08 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
11 of 26 (42.31%)
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:
1e817b9bc074fac29dc54d04f14d0793c828f970bddad9e1263c106a308a0b9a
MD5 hash:
a4c93eec9068141c0be587e590bb8f5d
SHA1 hash:
91a997df633beeb0505ceacaf7211a8d60dc1254
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
6aa7bb0b95a181247620e7b3c013369ef49f2813ee4d0b43340f1944f5dc2cf1
MD5 hash:
af6a1c94e6383cfc59509b10a34f4ad1
SHA1 hash:
f15245e5b013354fb259b6def1e05f78c8dc8516
SH256 hash:
0320b8764d00396006d7296684fcf9ab78f18f24d0041a142bd32a8937ce5395
MD5 hash:
3652f41248b0c80208b5f34a0e45364d
SHA1 hash:
3680687498426b69c8f3b4b3bf5f87dd6fc742dd
SH256 hash:
b90902d1d8e0ffa8a17aafaf6d74cf725393c59a852d4384fe2a588ca5112c68
MD5 hash:
d20bbeac93127b552084669d04af9b49
SHA1 hash:
7f30f05d3300c7a7df60902b058d6b727d344925
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