MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 536fcb99034026b8777fda97132708c2dbdd2844c5375807be025c5b18af23a1. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 536fcb99034026b8777fda97132708c2dbdd2844c5375807be025c5b18af23a1
SHA3-384 hash: dcd132a24552028d00786222864fc683f40a56643ae3ca2eaa00def76d4de4563b714f3a7766f088fd534539534d3128
SHA1 hash: 08b82533601eef0448177182f6f0a1e9f2ea6df0
MD5 hash: 569ac447137e11d65265432631501176
humanhash: princess-robin-sink-missouri
File name:file
Download: download sample
Signature GCleaner
Create hunting rule
File size:1'796'274 bytes
First seen:2023-01-25 17:16:58 UTC
Last seen:2023-01-25 17:43:19 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash 884310b1928934402ea6fec1dbd3cf5e (3'725 x GCleaner, 3'514 x Socks5Systemz, 262 x RaccoonStealer)
ssdeep 49152:ZxpTj5CHsavkyPhGZs2XBGB1R5mA8M6LCgv2MR:3pbav1hGisIBpmA8Dv2MR
TLSH T143853302F8729472F1A396FA1C5DA50066B7FE2906A5575E70CC2ABC3E77BD4880B34D
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 b298acbab2ca7a72 (2'327 x GCleaner, 1'631 x Socks5Systemz, 67 x RedLineStealer)
Reporter andretavare5
Tags:exe gcleaner


Avatar
andretavare5
Sample downloaded from http://45.12.253.74/pineapple.php?pub=mixinte

Intelligence

File Origin
# of uploads :
12
# of downloads :
207
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
file
Verdict:
Malicious activity
Analysis date:
2023-01-25 17:18:12 UTC
Tags:
installer
Link:
https://app.any.run/tasks/4750449c-cfc9-4e36-bc8a-06b506ea4440

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Nymaim
Create hunting rule
Link:
https://www.capesandbox.com/analysis/356786/
Detection(s):
SecuriteInfo.com.Trojan.Moneyinst.746.21331.248.UNOFFICIAL
Create hunting rule

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
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
Link:
https://dragonfly.certego.net/analysis/63032/overview
Behaviour
MalwareBazaar
CheckCmdLine
Verdict:
No Threat
Threat level:
  2/10
Confidence:
100%
Tags:
greyware overlay packed shell32.dll
Link:
https://www.filescan.io/uploads/63d1640ffcc41339192e98b3/reports/db1c0a0e-3f99-431f-85fe-d3f6b569c05c/overview
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.
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f0daafca-fb25-46f7-8cce-e406651866a3
Result
Threat name:
Nymaim
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
92 / 100
Link:
https://www.joesandbox.com/analysis/1158900
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:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 791637 Sample: file.exe Startdate: 25/01/2023 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 18 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, 49700, 80 CMCSUS Germany 17->42 44 45.12.253.72, 49701, 80 CMCSUS Germany 17->44 46 45.12.253.75, 49702, 80 CMCSUS Germany 17->46 30 C:\Users\user\AppData\...\UdRc7PzGF.exe, PE32 17->30 dropped 21 UdRc7PzGF.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
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/536fcb99034026b8777fda97132708c2dbdd2844c5375807be025c5b18af23a1/
Threat name:
Win32.Trojan.Privateloader
Create hunting rule
Status:
Malicious
First seen:
2023-01-25 18:12:41 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
17 of 26 (65.38%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=knx4xgidiatlq5373klrgjyiyln52kceyu3vqb56ajofwgfpeoqq._file
Verdict:
malicious
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner discovery loader
Link:
https://tria.ge/reports/230125-vtn8rshb75/
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:
d2607ddff8b20b8b91e940698e284839b711ff317313da52eadad8ef6c132e30
MD5 hash:
fdb85e08a01763ac5e12ced8f97baa87
SHA1 hash:
21d25dec39263c7fe87966506fee48b94b114619
Detections:
win_nymaim_g0
Create hunting rule
Nymaim
Create hunting rule
win_gcleaner_auto
Create hunting rule
Link:
https://www.unpac.me/results/3ad3fb37-dccc-4965-bd3f-dce7ce7f1f52/
SH256 hash:
2bcbebd84eaa1fafba09a319624a9cba3cee0f65ff1938e9a567a576f1f60f70
MD5 hash:
c760fe19b4e223ea0634caaf187556ef
SHA1 hash:
b7130414ca4281a32f18504da9ee580976aa7a71
Link:
https://www.unpac.me/results/3ad3fb37-dccc-4965-bd3f-dce7ce7f1f52/
SH256 hash:
536fcb99034026b8777fda97132708c2dbdd2844c5375807be025c5b18af23a1
MD5 hash:
569ac447137e11d65265432631501176
SHA1 hash:
08b82533601eef0448177182f6f0a1e9f2ea6df0
Link:
https://www.unpac.me/results/3ad3fb37-dccc-4965-bd3f-dce7ce7f1f52/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
0.98
Link:
https://yomi.yoroi.company/submissions/536fcb99034026b8777fda97132708c2dbdd2844c5375807be025c5b18af23a1

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
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:win_gcleaner_auto
Create hunting rule
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
  
URLhaus
https://urlhaus.abuse.ch/url/2509470/
Cape
Cape
https://www.capesandbox.com/analysis/356786/

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