MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 cfbf75c729655bd23b26df184d5091bcd0a5227b165f86a335150477e6af7237. 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: 16


Intelligence 16 IOCs YARA 19 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: cfbf75c729655bd23b26df184d5091bcd0a5227b165f86a335150477e6af7237
SHA3-384 hash: 9ef57bd41de6503d7991c10a156f300d34832f060021ce4c2cc54f37350c6800fdc7403694b4806c18837f41163e8db7
SHA1 hash: e927b4c51ea6e3936cdd49dc95d65fbc5178cc5e
MD5 hash: 17823a653265a49098b59fe2eb266a8a
humanhash: april-vegan-equal-hotel
File name:random.exe
Download: download sample
Signature GCleaner
Create hunting rule
File size:4'521'472 bytes
First seen:2025-04-05 06:08:59 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 2eabe9054cad5152567f0699947a2c5b (2'852 x LummaStealer, 1'312 x Stealc, 1'026 x Healer)
ssdeep 98304:1wXYt8Fx0eIZypY3RcoORhggAmFvjq/oL0uqrn:1wuGijZ8eufggAmhj/0ui
TLSH T138263347FFB2AA10F1AD0C715977928636E24650FE830F2B7671AB8C1767C452EC5A38
TrID 35.7% (.EXE) Win32 Executable (generic) (4504/4/1)
16.4% (.EXE) Win16/32 Executable Delphi generic (2072/23)
16.0% (.EXE) OS/2 Executable (generic) (2029/13)
15.8% (.EXE) Generic Win/DOS Executable (2002/3)
15.8% (.EXE) DOS Executable Generic (2000/1)
Magika pebin
dhash icon e0f8fafbc3f3f8d8 (41 x GCleaner, 3 x Amadey, 1 x Rhadamanthys)
Reporter abuse_ch
Tags:exe gcleaner

Intelligence

File Origin
# of uploads :
1
# of downloads :
390
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
amadey
Create hunting rule
ID:
1
File name:
2d7d262551e3387c3d070fd72f8d448a.exe
Verdict:
Malicious activity
Analysis date:
2025-04-05 06:08:11 UTC
Tags:
amadey botnet stealer rdp themida lumma loader telegram vidar auto generic autoit gcleaner darkvision rat
Link:
https://app.any.run/tasks/b88705b8-c6c6-4c16-aa3a-8c6c92066886

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/687/
Detection(s):
SecuriteInfo.com.Trojan.Lumma-1.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.9%
Link:
https://cyber-fortress.com/docs/result/index.php?id=67f0cc1a855e5ec5240f0bf1
Tags:
cobalt emotet
Result
Verdict:
Malware
Maliciousness:

Behaviour
Сreating synchronization primitives
Searching for analyzing tools
Searching for the window
Creating a window
Using the Windows Management Instrumentation requests
Creating a file in the %temp% directory
Creating a process from a recently created file
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Connection attempt to an infection source
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
borland_delphi packed packed packer_detected
Link:
https://www.filescan.io/uploads/67f0c90cb070fb3f945f2199/reports/c64693d6-2b02-40f5-b51a-17f390908831/overview
Verdict:
Malicious
Labled as:
Zusy.Generic
Link:
https://www.hybrid-analysis.com/sample/cfbf75c729655bd23b26df184d5091bcd0a5227b165f86a335150477e6af7237
Verdict:
Suspicious
Link:
https://analyze.intezer.com/analyses/d937a99c-04b5-4118-b27b-ed25d9cf78d3
Result
Threat name:
CryptOne
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1657147
Signature
Allocates memory in foreign processes
Antivirus detection for URL or domain
Detected unpacking (changes PE section rights)
Hides threads from debuggers
Injects a PE file into a foreign processes
Joe Sandbox ML detected suspicious sample
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Potentially malicious time measurement code found
Sample uses process hollowing technique
Tries to detect process monitoring tools (Task Manager, Process Explorer etc.)
Tries to detect sandboxes / dynamic malware analysis system (registry check)
Tries to detect sandboxes and other dynamic analysis tools (window names)
Tries to detect virtualization through RDTSC time measurements
Tries to evade debugger and weak emulator (self modifying code)
Writes to foreign memory regions
Yara detected CryptOne packer
Behaviour
Behavior Graph:
Download SVG
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/cfbf75c729655bd23b26df184d5091bcd0a5227b165f86a335150477e6af7237
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/cfbf75c729655bd23b26df184d5091bcd0a5227b165f86a335150477e6af7237/
Threat name:
Win32.Trojan.Tepfer
Create hunting rule
Status:
Malicious
First seen:
2025-04-05 06:09:18 UTC
File Type:
PE (Exe)
Extracted files:
31
AV detection:
16 of 24 (66.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=z67xlrzjmvn5eozg34me2uerxtikkit3czpynizvcuchpzvpoi3q._file
Result
Malware family:
gcleaner
Create hunting rule
Score:
  10/10
Tags:
family:gcleaner defense_evasion discovery loader
Link:
https://tria.ge/reports/250405-gwlnrsvky4/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtSetInformationThreadHideFromDebugger
Suspicious use of SetThreadContext
Checks BIOS information in registry
Executes dropped EXE
Identifies Wine through registry keys
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
GCleaner
Gcleaner family
Malware Config
C2 Extraction:
185.156.73.98
45.91.200.135
Verdict:
Malicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/9aec66fb-3b13-433f-a48d-acb0c9fd9972
Unpacked files
SH256 hash:
cfbf75c729655bd23b26df184d5091bcd0a5227b165f86a335150477e6af7237
MD5 hash:
17823a653265a49098b59fe2eb266a8a
SHA1 hash:
e927b4c51ea6e3936cdd49dc95d65fbc5178cc5e
Link:
https://www.unpac.me/results/6372bf14-a101-4f9c-82bd-b3c4bf2393e5/
SH256 hash:
0aa4618778086ed2941659e861f9243d17d6afbe87e2a71001cbbaa081281aed
MD5 hash:
16e3ba871718c053aa007ae5ae0850f7
SHA1 hash:
344d2a712557f01d837c9f1ec8608277df4e15bc
Detections:
GCleaner
Create hunting rule
Link:
https://www.unpac.me/results/6372bf14-a101-4f9c-82bd-b3c4bf2393e5/
Malware family:
GCleaner
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/_mb/cfbf75c72965/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/cfbf75c729655bd23b26df184d5091bcd0a5227b165f86a335150477e6af7237

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:BobSoftMiniDelphiBoBBobSoft
Create hunting rule
Author:malware-lu
Rule name:Borland
Create hunting rule
Author:malware-lu
Rule name:Check_OutputDebugStringA_iat
Create hunting rule
Rule name:cobalt_strike_tmp01925d3f
Create hunting rule
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:DebuggerCheck__QueryInfo
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Create hunting rule
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:meth_stackstrings
Create hunting rule
Author:Willi Ballenthin
Rule name:pe_detect_tls_callbacks
Create hunting rule
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:RIPEMD160_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for RIPEMD-160 constants
Rule name:SHA1_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for SHA1 constants
Rule name:shellcode
Create hunting rule
Author:nex
Description:Matched shellcode byte patterns
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:ThreadControl__Context
Create hunting rule
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques
Rule name:with_urls
Create hunting rule
Author:Antonio Sanchez <asanchez@hispasec.com>
Description:Rule to detect the presence of an or several urls
Reference:http://laboratorio.blogs.hispasec.com/

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

GCleaner

Executable exe cfbf75c729655bd23b26df184d5091bcd0a5227b165f86a335150477e6af7237

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3452050/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/687/

BLint

The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_NXMissing Non-Executable Memory Protectioncritical
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh

Comments