MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 027f5be3a4581f03ae89654c543504913f6d8e0cde4a8ccf9f10088097d2f8b1. 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: 027f5be3a4581f03ae89654c543504913f6d8e0cde4a8ccf9f10088097d2f8b1
SHA3-384 hash: 53ee39672d0c36f31255a2f6a290f23d5688c08d5b3a501fae6adfae765370c2725f6cc2f0d801d72db854dc5e3c6997
SHA1 hash: a09e556df5d1e0317d457d87ef6c890fdd565750
MD5 hash: 78bc9e6b8f54759b0e794f53ef3cdb1a
humanhash: charlie-wyoming-april-asparagus
File name:file
Download: download sample
Signature GCleaner
File size:3'314'922 bytes
First seen:2023-02-13 18:02:56 UTC
Last seen:2023-02-13 18:28:49 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'455 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 98304:JH6lBpoF4mZmTiwxb/PCsFJa8nwlTvPyMZC9Iv2MR:d6l/oF406iwF/qsztwlbZC9IvjR
TLSH T19BE5127C710589ADC280FEB48D39D4F75DE66EE3E9A4A46230D8BF3E52BD1849B09113
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 :
217
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-13 18:08:42 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
Creating a file in the Windows subdirectories
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 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: 806464 Sample: file.exe Startdate: 13/02/2023 Architecture: WINDOWS Score: 100 47 45.12.253.98 CMCSUS Germany 2->47 49 Snort IDS alert for network traffic 2->49 51 Antivirus detection for URL or domain 2->51 53 Multi AV Scanner detection for submitted file 2->53 55 5 other signatures 2->55 10 file.exe 2 2->10         started        signatures3 process4 file5 31 C:\Users\user\AppData\Local\Temp\...\file.tmp, PE32 10->31 dropped 57 Obfuscated command line found 10->57 14 file.tmp 18 17 10->14         started        signatures6 process7 file8 33 C:\Users\user\AppData\Local\...\_setup64.tmp, PE32+ 14->33 dropped 35 C:\Users\user\AppData\Local\...\_isdecmp.dll, PE32 14->35 dropped 37 C:\Users\user\AppData\Local\...\_iscrypt.dll, PE32 14->37 dropped 39 7 other files (6 malicious) 14->39 dropped 17 FRec213.exe 24 14->17         started        process9 dnsIp10 41 45.12.253.56, 49699, 80 CMCSUS Germany 17->41 43 45.12.253.72, 49700, 80 CMCSUS Germany 17->43 45 45.12.253.75, 49701, 80 CMCSUS Germany 17->45 29 C:\Users\user\AppData\Roaming\...\aZ7KuW.exe, PE32 17->29 dropped 21 cmd.exe 1 17->21         started        23 aZ7KuW.exe 17->23         started        file11 process12 process13 25 taskkill.exe 1 21->25         started        27 conhost.exe 21->27         started       
Threat name:
Win32.Trojan.Privateloader
Status:
Malicious
First seen:
2023-02-13 18:03:09 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
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:
9f899d6bba3e81366ea41ef44073dbd1f85aa91a51edd1e201aaa4dfd4c011b4
MD5 hash:
c3dbb140a1c17c62216a7428d991e0cb
SHA1 hash:
a9e63e1cac110732358510a00f2e6fcf5533db11
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
fbbef7878bdf0efa8b98dd8495d248d1707e37b009de5d1e36120f155601becf
MD5 hash:
9020cfb6698656f6a4cd68b5550eb3c9
SHA1 hash:
e8ecef89d5486903fea920e10e587b05753ddce8
SH256 hash:
dcfaf8c6df573d12223e0fdfa31bb04cc95e722dc9de0d69a58492ba2d136f22
MD5 hash:
fd11d417ad04c2200e71384ba0d34bae
SHA1 hash:
91e01f483179158b8ceac96d30b620ca79d0adfd
SH256 hash:
444895ff6cac43c035f77b853cd9f684c1d2c7e7242bce187e4455757c1e6e5f
MD5 hash:
ad1886a254960878bd31216a2f183e3e
SHA1 hash:
29d197300da8c9046df6ac21c60df7e364030bc5
SH256 hash:
027f5be3a4581f03ae89654c543504913f6d8e0cde4a8ccf9f10088097d2f8b1
MD5 hash:
78bc9e6b8f54759b0e794f53ef3cdb1a
SHA1 hash:
a09e556df5d1e0317d457d87ef6c890fdd565750
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