MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 27b042992e4ca1c4d3b2b2f33f3b869602c0d07906a34114d6a002f941e47078. 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: 14


Intelligence 14 IOCs YARA 4 File information Comments

SHA256 hash: 27b042992e4ca1c4d3b2b2f33f3b869602c0d07906a34114d6a002f941e47078
SHA3-384 hash: 18a3b934acda45c863e9cb6b291ad27c95db482a6048d47d05aa5952940138a31d348470eb0308d180576a872310a7b7
SHA1 hash: 0ba20317561847b5325ddb168ec0503b5240c2ec
MD5 hash: 0015c340d2e8a3bac775f8ff73e74188
humanhash: football-don-nine-cardinal
File name:random.exe
Download: download sample
Signature GCleaner
File size:4'584'960 bytes
First seen:2025-04-03 06:52:41 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:ytq4CkcV1kEdVnO5eOP+//IDOLgVAzW/1FbIRWFi7z0H:sskcV1kEnO5k//IyLQmW/E0FN
TLSH T1A826335DBE67A978F8A1943195F7E7562E20F2A0032BEBCF9347B77B640D090938D025
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 :
429
Origin country :
NL NL
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
random.exe
Verdict:
Malicious activity
Analysis date:
2025-04-03 07:24:38 UTC
Tags:
gcleaner loader auto generic inno installer delphi rust

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
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 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.Tepfer
Status:
Malicious
First seen:
2025-04-03 01:06:15 UTC
File Type:
PE (Exe)
Extracted files:
31
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
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:
Suspicious
Tags:
n/a
YARA:
n/a
Unpacked files
SH256 hash:
27b042992e4ca1c4d3b2b2f33f3b869602c0d07906a34114d6a002f941e47078
MD5 hash:
0015c340d2e8a3bac775f8ff73e74188
SHA1 hash:
0ba20317561847b5325ddb168ec0503b5240c2ec
SH256 hash:
da5e9cab7742a1b1fc90193d39ccfcefd0b9b31c77115d1a6527abbf7a5e2369
MD5 hash:
7961e0a32169323ba54916c8b5783c27
SHA1 hash:
d2b9920c3fcc5baece93f55380ac8eacf40634ef
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: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 27b042992e4ca1c4d3b2b2f33f3b869602c0d07906a34114d6a002f941e47078

(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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