MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 f4a8e4307944c6decec264820f699e4e4adee02fc71da530ad862dee959528cb. 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


CNBackdoor


Vendor detections: 10


Intelligence 10 IOCs YARA 9 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: f4a8e4307944c6decec264820f699e4e4adee02fc71da530ad862dee959528cb
SHA3-384 hash: 53f09d18757a07fb7a80d51525d579e41b48c99d262f9868d89795ac28e90a4f7efd5018618054902ee0c5b4046e0a30
SHA1 hash: e87636567b277c51b7c4fb6e5f71e4f1b8f8997a
MD5 hash: fe1df8e405bcd3672f3cafbb667831c0
humanhash: pasta-helium-berlin-asparagus
File name:LauncherV33281.exe
Download: download sample
Signature CNBackdoor
Create hunting rule
File size:15'284'224 bytes
First seen:2026-08-15 00:29:30 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash a56f115ee5ef2625bd949acaeec66b76 (57 x Stealc, 57 x PureHVNC, 36 x CoinMiner)
ssdeep 393216:cI0EHldZw7OgWtsKvdJhYZDr7fQCx7VR3QSMMaVTH0D2:cwSOptsKvdUz1xJxjMMEH
TLSH T198F633A64256D15ADDB1503A6BD0E9B99B11BB448C1D030D2FE33ABDF2E52B2BFC105C
TrID 38.3% (.EXE) Win16 NE executable (generic) (5038/12/1)
15.6% (.ICL) Windows Icons Library (generic) (2059/9)
15.4% (.EXE) OS/2 Executable (generic) (2029/13)
15.2% (.EXE) Generic Win/DOS Executable (2002/3)
15.2% (.EXE) DOS Executable (generic) (2000/1)
Magika pebin
dhash icon 10d2e2e6dcecc6e2 (1 x CNBackdoor)
Reporter aachum
Tags:CNBackdoor exe


Avatar
iamaachum
https://dl89sfilesbase.top/downloads/K8fRy6W/Packed

CNBackdoor C2:
https://tommysbakescodes.ws/mnlinmwv/insris.php
https://tabbysbakescodes.ws/mnlinmwv/insris.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
165
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-08-15 00:35:18 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/19527abf-bfc3-4f82-b2b1-af4270691ede

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/81253/
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for analyzing tools
Searching for the window
Creating a file in the %temp% directory
Launching a process
Creating a process from a recently created file
Creating a window
Using the Windows Management Instrumentation requests
Creating a file in the %AppData% subdirectories
Running batch commands
Creating a file
Сreating synchronization primitives
Unauthorized injection to a recently created process
Adding an exclusion to Microsoft Defender
Enabling autorun by creating a file
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
obfuscated packed packed themidawinlicense
Link:
https://www.filescan.io/uploads/6a7fb336898bbdcd6b87850c/reports/849b6222-8644-4f67-a579-624c423c037e/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Link:
https://www.hybrid-analysis.com/sample/f4a8e4307944c6decec264820f699e4e4adee02fc71da530ad862dee959528cb
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-08-14T22:52:00Z UTC
Last seen:
2026-08-16T10:00:00Z UTC
Hits:
~100
Link:
https://opentip.kaspersky.com/f4a8e4307944c6decec264820f699e4e4adee02fc71da530ad862dee959528cb/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/1d822323-3406-4b32-8c45-5780b7dea823
Result
Threat name:
n/a
Detection:
malicious
Classification:
spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1958467
Signature
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Detected unpacking (changes PE section rights)
Drops PE files with benign system names
Found direct / indirect Syscall (likely to bypass EDR)
Hides threads from debuggers
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Multi AV Scanner detection for submitted file
PE file contains section with special chars
Sigma detected: Files With System Process Name In Unsuspected Locations
Sigma detected: Powershell Base64 Encoded MpPreference Cmdlet
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: System File Execution Location Anomaly
Suspicious powershell command line found
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)
Yara detected GenericBot
Yara detected MSIL Injector
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1958467 Sample: LauncherV33281.exe Startdate: 15/08/2026 Architecture: WINDOWS Score: 100 48 tommysbakescodes.ws 2->48 50 tommysbakescodes.cv 2->50 52 tabbysbakescodes.ws 2->52 60 Antivirus / Scanner detection for submitted sample 2->60 62 Multi AV Scanner detection for submitted file 2->62 64 Yara detected GenericBot 2->64 66 7 other signatures 2->66 10 LauncherV33281.exe 2 2->10         started        signatures3 process4 file5 44 C:\Users\user\...ffectsPropertyCheck.exe, PE32+ 10->44 dropped 46 C:\Users\user\...\LauncherV33281.exe.log, CSV 10->46 dropped 70 Detected unpacking (changes PE section rights) 10->70 72 Suspicious powershell command line found 10->72 74 Tries to detect sandboxes and other dynamic analysis tools (window names) 10->74 76 5 other signatures 10->76 14 powershell.exe 12 10->14         started        16 powershell.exe 23 10->16         started        signatures6 process7 signatures8 19 EffectsPropertyCheck.exe 12 14->19         started        23 conhost.exe 14->23         started        58 Loading BitLocker PowerShell Module 16->58 25 WmiPrvSE.exe 16->25         started        27 conhost.exe 16->27         started        process9 file10 38 C:\Users\user\AppData\...\services.exe, PE32+ 19->38 dropped 40 C:\Users\user\AppData\Roaming\...\pcwutl.dll, PE32+ 19->40 dropped 42 C:\Users\user\AppData\Roaming\...\dosvc.dll, PE32+ 19->42 dropped 68 Drops PE files with benign system names 19->68 29 cmd.exe 19->29         started        31 services.exe 14 2 19->31         started        signatures11 process12 dnsIp13 34 conhost.exe 29->34         started        36 timeout.exe 29->36         started        54 tabbysbakescodes.ws 104.21.43.229, 443, 49716, 49719 CLOUDFLARENET-CloudflareIncUS Canada 31->54 56 tommysbakescodes.ws 172.67.148.26, 443, 49714, 49715 CLOUDFLARENET-CloudflareIncUS Canada 31->56 process14
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/f4a8e4307944c6decec264820f699e4e4adee02fc71da530ad862dee959528cb
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/fe1df8e405bcd3672f3cafbb667831c0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/f4a8e4307944c6decec264820f699e4e4adee02fc71da530ad862dee959528cb/
Threat name:
Win64.Trojan.Kepavll
Create hunting rule
Status:
Malicious
First seen:
2026-08-15 00:30:55 UTC
File Type:
PE+ (Exe)
Extracted files:
3
AV detection:
19 of 38 (50.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=6suoimdzitdn5twcmsba62m6jzfn5ybpy4o2kmfnqyw65fmvfdfq._file
Result
Malware family:
n/a
Score:
  9/10
Tags:
defense_evasion execution persistence privilege_escalation themida trojan
Link:
https://tria.ge/reports/260815-atw86acl8w/
Behaviour
Checks processor information in registry
Delays execution with timeout.exe
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Executes a command shell one-liner
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks whether UAC is enabled
Checks BIOS information in registry
Creates a file in the Startup directory
Executes dropped EXE
Themida packer
Command and Scripting Interpreter: PowerShell
Looks for VMWare Tools registry key
Enumerates VirtualBox registry keys
Identifies VirtualBox via ACPI registry values (likely anti-VM)
Looks for VirtualBox Guest Additions in registry
Unpacked files
SH256 hash:
f4a8e4307944c6decec264820f699e4e4adee02fc71da530ad862dee959528cb
MD5 hash:
fe1df8e405bcd3672f3cafbb667831c0
SHA1 hash:
e87636567b277c51b7c4fb6e5f71e4f1b8f8997a
Link:
https://www.unpac.me/results/68dcaf6a-3cf4-4925-bf86-04ec346eb8ee/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.56
Link:
https://yomi.yoroi.company/submissions/f4a8e4307944c6decec264820f699e4e4adee02fc71da530ad862dee959528cb

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:CP_Script_Inject_Detector
Create hunting rule
Author:DiegoAnalytics
Description:Detects attempts to inject code into another process across PE, ELF, Mach-O binaries
Rule name:HeavensGate
Create hunting rule
Author:kevoreilly
Description:Heaven's Gate: Switch from 32-bit to 64-mode
Rule name:INDICATOR_EXE_Packed_Themida
Create hunting rule
Author:ditekSHen
Description:Detects executables packed with Themida
Rule name:MD5_Constants
Create hunting rule
Author:phoul (@phoul)
Description:Look for MD5 constants
Rule name:NET
Create hunting rule
Author:malware-lu
Rule name:pe_no_import_table
Create hunting rule
Description:Detect pe file that no import table
Rule name:Sus_CMD_Powershell_Usage
Create hunting rule
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)
Rule name:telebot_framework
Create hunting rule
Author:vietdx.mb

File information

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

Web download

CNBackdoor

iso 80cd87cbf731d14baa0698a22a0ebf8db7b305a740d0015d985e94b6b197a2f3

CNBackdoor

Executable exe f4a8e4307944c6decec264820f699e4e4adee02fc71da530ad862dee959528cb

(this sample)

  
Link
https://tria.ge/260815-ahgdkavcjf/behavioral2
  
Dropped by
SHA256 80cd87cbf731d14baa0698a22a0ebf8db7b305a740d0015d985e94b6b197a2f3
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/81253/
  
Dropped by
MD5 5cae55328112416dd21369d80194f8b0

Comments