MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 b4c9e35a4a2cf3bcf13e21faeb0e3d25a4fbbf1c0db0a4c22ae537b99bd49f9f. 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: 15


Intelligence 15 IOCs YARA 8 File information Comments

SHA256 hash: b4c9e35a4a2cf3bcf13e21faeb0e3d25a4fbbf1c0db0a4c22ae537b99bd49f9f
SHA3-384 hash: 9cdfc9e9212c768d956b8abdf60eb179bc03bfc81ab9697a51ebdecea7bc6a73848a26141819112e45f328d768c00ae5
SHA1 hash: fbfa5a86b3f119fade2c8fb7d6acca01c95f12c2
MD5 hash: d1677a501c259b44c72bbe4c6c89325f
humanhash: victor-utah-coffee-autumn
File name:random.exe
Download: download sample
Signature GCleaner
File size:4'576'256 bytes
First seen:2025-04-25 16:34:42 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:ixiwyQA7k8rFs0M6eLh/dH5M8FBgfwwewdB/fGBx9BRPKfIt:iRyQA1Fu6eLhzxI4qAx9jK
TLSH T189263353DD10E598F40110BC978B23DA76B84555A8FA2783AA1E1E712E8F2F5C71CF3A
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
Reporter abuse_ch
Tags:exe gcleaner

Intelligence


File Origin
# of uploads :
1
# of downloads :
451
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
random.exe
Verdict:
Malicious activity
Analysis date:
2025-04-25 16:47:42 UTC
Tags:
auto generic

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Verdict:
Malicious
Score:
99.9%
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
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
borland_delphi entropy packed packed packer_detected rat virtual
Result
Threat name:
CryptOne
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
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 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:
Threat name:
Win32.Infostealer.Tinba
Status:
Malicious
First seen:
2025-04-25 16:35:28 UTC
File Type:
PE (Exe)
Extracted files:
20
AV detection:
17 of 24 (70.83%)
Threat level:
  5/5
Result
Malware family:
gcleaner
Score:
  10/10
Tags:
family:gcleaner defense_evasion discovery loader
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
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
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:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
b4c9e35a4a2cf3bcf13e21faeb0e3d25a4fbbf1c0db0a4c22ae537b99bd49f9f
MD5 hash:
d1677a501c259b44c72bbe4c6c89325f
SHA1 hash:
fbfa5a86b3f119fade2c8fb7d6acca01c95f12c2
SH256 hash:
1fa0519dcf320149431157a060a35793f4fe3dfc9b8b86354a99ecab62f9943b
MD5 hash:
be0007535ed475cde25a4c8403f4fb4a
SHA1 hash:
61264f66684f943044abb946242b076846149ca0
Detections:
GCleaner
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:Borland
Author:malware-lu
Rule name:Check_OutputDebugStringA_iat
Rule name:cobalt_strike_tmp01925d3f
Author:The DFIR Report
Description:files - file ~tmp01925d3f.exe
Reference:https://thedfirreport.com
Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara
Rule name:golang_bin_JCorn_CSC846
Author:Justin Cornwell
Description:CSC-846 Golang detection ruleset
Rule name:pe_detect_tls_callbacks
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)
Rule name:vmdetect
Author:nex
Description:Possibly employs anti-virtualization techniques

File information


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

Web download

GCleaner

Executable exe b4c9e35a4a2cf3bcf13e21faeb0e3d25a4fbbf1c0db0a4c22ae537b99bd49f9f

(this sample)

  
Delivery method
Distributed via web download

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

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