MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 db39b86eb665bc0b5e819ad7fb2d91481570df424077f808df24218da03bb095. 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: db39b86eb665bc0b5e819ad7fb2d91481570df424077f808df24218da03bb095
SHA3-384 hash: ff759bf082c7fd3f06477dae36f363df0c35d12b37b9a3d557c332b3b1450fc614843c610b49560185873a1f94a77a8e
SHA1 hash: 966ecc06429da9fbbea0d324c25b41b282f8fdd0
MD5 hash: f02ce1a83a291d58982aee263ae1ea05
humanhash: friend-nitrogen-enemy-utah
File name:file
Download: download sample
Signature GCleaner
File size:2'455'130 bytes
First seen:2023-02-12 00:33:06 UTC
Last seen:2023-02-12 00:59:52 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'447 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:rdHKCtDNF3S31vlIYrjmenjFtY6ekyXrtuV9exgLCgv2MR:JHZq1djmWjFtYIKIhv2MR
TLSH T1DAB5017C7144C4ADD6C0BEB88C3AE8E75CD6ADE3A9A4A16270CD7F3F9578288460D147
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 :
8
# of downloads :
200
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-02-12 00:36:00 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 process
Launching a tool to kill processes
Result
Malware family:
n/a
Score:
  5/10
Tags:
n/a
Behaviour
MalwareBazaar
CheckCmdLine
Gathering data
Result
Verdict:
MALICIOUS
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: 805118 Sample: file.exe Startdate: 12/02/2023 Architecture: WINDOWS Score: 100 48 45.12.253.98 CMCSUS Germany 2->48 50 Snort IDS alert for network traffic 2->50 52 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 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 FRec211.exe 24 14->17         started        process9 dnsIp10 42 45.12.253.56, 49712, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49713, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49714, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\a4sI7Z5LBNn.exe, PE32 17->30 dropped 21 a4sI7Z5LBNn.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.Generic
Status:
Suspicious
First seen:
2023-02-12 00:34:08 UTC
File Type:
PE (Exe)
Extracted files:
5
AV detection:
6 of 39 (15.38%)
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 behavior: GetForegroundWindowSpam
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:
445ef5e2038f5003e82d9811c7030f3fcf762eb1d34b6f99aa201cbf9e6a2378
MD5 hash:
71c9e231083aa27c214f42d6704c7831
SHA1 hash:
ca3df6add1720cea476833fe80b73f50bd016287
Detections:
win_nymaim_g0 Nymaim win_gcleaner_auto
SH256 hash:
bb09bab59c1cfb3950cb49a3a396c980afa0f8d673ac9377e29914b5058f95f2
MD5 hash:
7caf38ee6ff5ef71c2f33d344acd5667
SHA1 hash:
b784a2ea865923f239e2c19989827db204b9f084
SH256 hash:
e05ac1b9103d265692823218abc29e0e2ead6b94b03aa779233cc7cffb4226ed
MD5 hash:
a58f2fda7407242ba5ce5d0371e52ed6
SHA1 hash:
a85fe06a906aaf549cb8828814e192e5a4d25864
SH256 hash:
f6d48eb213e5f468ffcabe6807309f1b81d631c25a78d34786ec7ec4e2eaa3cb
MD5 hash:
1c7c46a5f57ab8b1610cb625c113eaf3
SHA1 hash:
6c399063e3aaa7d508a850617be109438c7d30b3
SH256 hash:
db39b86eb665bc0b5e819ad7fb2d91481570df424077f808df24218da03bb095
MD5 hash:
f02ce1a83a291d58982aee263ae1ea05
SHA1 hash:
966ecc06429da9fbbea0d324c25b41b282f8fdd0
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