MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c99505c2c39961e0428e3ecd9bc26514c55eca2bdfbe8fc39f8864a650966384. 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: c99505c2c39961e0428e3ecd9bc26514c55eca2bdfbe8fc39f8864a650966384
SHA3-384 hash: e215fd993c6253c7fcfd663782d338f0f20d41726cbe47d082bacaa93012a49386b5ea1a0327a90fdf9fc205e8f71b3c
SHA1 hash: 0fb23b4a5a56d3c15ce79dc4fedc4fcae333375d
MD5 hash: 3ac5fc592b8f87a1f8df0fa6736de32b
humanhash: equal-blossom-grey-white
File name:file
Download: download sample
Signature GCleaner
File size:3'171'419 bytes
First seen:2023-02-16 17:15:53 UTC
Last seen:2023-02-16 17:55:27 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'446 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:97bUAsynhliQl518Bl3N8C4zz7t/Elk5jVb5OQKc2GScOpk9/si9cMfq1WbCBQNb:xbU4hUY833SC45/C6kVFq18MPNZv2MR
Threatray 7'281 similar samples on MalwareBazaar
TLSH T11FE5234B7695CAEDE3A1CE739C5E56A029272C14A4B1C05F39997E2F39F22DD800EF44
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 12f0f4b26284e162 (24 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 :
11
# 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 17:16:59 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
Launching a process
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:
100%
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: 809982 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 submitted file 2->54 56 5 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 14 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 24 14->17         started        process9 dnsIp10 42 45.12.253.56, 49701, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49702, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49703, 49704, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\BO7apS4hJMg1.exe, PE32 17->30 dropped 21 BO7apS4hJMg1.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:
2023-02-16 17:16:07 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
15 of 25 (60.00%)
Threat level:
  5/5
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:
2bdab2d8389616e531524989ffaefecf7c11721c8b8aff18ae56ed7620976750
MD5 hash:
bdd581d716de28298e4beded90da9b32
SHA1 hash:
e706c1dd94d4e2beac8e6b5b196674cd2fcc8941
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
ffd25fdfc16e9dd5fbaae076baa3606a3d75835dcf141795b43d48b6bf8d3c02
MD5 hash:
0f3cb207b84a7759ed93a77f11497ca4
SHA1 hash:
bb9e230d700119e7c9736343a47a2f6e7a339318
SH256 hash:
67fc1edd2adc49516b9a0d25e49fc53a2c2ec97b53d13c60eeda76a219244366
MD5 hash:
20a34c1d79cf4ab33c502ab1117f0125
SHA1 hash:
6f5e7a94f2136dbbae295e57f577e017cf0137c1
SH256 hash:
c99505c2c39961e0428e3ecd9bc26514c55eca2bdfbe8fc39f8864a650966384
MD5 hash:
3ac5fc592b8f87a1f8df0fa6736de32b
SHA1 hash:
0fb23b4a5a56d3c15ce79dc4fedc4fcae333375d
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