MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 63c28edf52979a1cc3b621872db1bc1135d32545f2ec5a6a461a5187fcb0d53c. 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 6 File information Comments

SHA256 hash: 63c28edf52979a1cc3b621872db1bc1135d32545f2ec5a6a461a5187fcb0d53c
SHA3-384 hash: 88540b9cd529c77c580c4b701ec4ee007149aa9b71958034c4a61b96b0d6799943d907f2cb0ca7432eff35fcaa696e51
SHA1 hash: 97497261f754261da811436ef8e61c6779b6ea3b
MD5 hash: 55e085ce8fa8716438cc05109301b978
humanhash: princess-twelve-oscar-dakota
File name:55e085ce8fa8716438cc05109301b978.exe
Download: download sample
Signature GCleaner
File size:4'651'520 bytes
First seen:2025-03-26 15:08:39 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:CjDm5fWuicPDD4CmE1wYzf3T54eCNcpRPYfsESoRr8uurgJrSCVi0X:km5f1KExfD5MNuRgfhrorWrS4X
TLSH T16F2633C89D1469D0CC296F3C92E3DFACB67A611B0DA1A33D471733BA0CF16F66592A05
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 :
449
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
55e085ce8fa8716438cc05109301b978.exe
Verdict:
Malicious activity
Analysis date:
2025-03-26 15:15:43 UTC
Tags:
gcleaner loader 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
Sending an HTTP GET request to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
borland_delphi packed packed packer_detected
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:
CryptOne
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Allocates memory in foreign processes
Detected unpacking (changes PE section rights)
Hides threads from debuggers
Injects a PE file into a foreign processes
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:
Threat name:
Win32.Trojan.Amadey
Status:
Malicious
First seen:
2025-03-26 13:45:15 UTC
File Type:
PE (Exe)
Extracted files:
32
AV detection:
18 of 24 (75.00%)
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
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
Loads dropped DLL
Downloads MZ/PE file
Identifies VirtualBox via ACPI registry values (likely anti-VM)
GCleaner
Gcleaner family
Unpacked files
SH256 hash:
c65e9f06ed6361a6e1e8497c2505950ba44fe1de660d184c73915059308f7114
MD5 hash:
29c98dc3f0307476d775dbc73bc4c4c5
SHA1 hash:
47bb49d5da143ac06dbdcc9a69a5c47464333334
Detections:
GCleaner
SH256 hash:
63c28edf52979a1cc3b621872db1bc1135d32545f2ec5a6a461a5187fcb0d53c
MD5 hash:
55e085ce8fa8716438cc05109301b978
SHA1 hash:
97497261f754261da811436ef8e61c6779b6ea3b
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:pe_detect_tls_callbacks
Rule name:PE_Digital_Certificate
Author:albertzsigovits
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 63c28edf52979a1cc3b621872db1bc1135d32545f2ec5a6a461a5187fcb0d53c

(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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