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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 749009376b352dfd21f7289f549c0ed3ff515f813eb1eaf2e604ba75be02c9c2. 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: 13


Intelligence 13 IOCs YARA 8 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 749009376b352dfd21f7289f549c0ed3ff515f813eb1eaf2e604ba75be02c9c2
SHA3-384 hash: df30ca2580e525a4ae6fcaa02c10e8c6bb9acfbb6f7859d1c3ded2de0752da3059300bed0982fc4bc01a22d633f2c53a
SHA1 hash: 36c20408877494fe44a04809a7730efc0d0a323a
MD5 hash: 770e477b5f8cd94a6783140a3bb62225
humanhash: glucose-lactose-uniform-nevada
File name:Installer21691x64.exe
Download: download sample
Signature CNBackdoor
Create hunting rule
File size:16'915'456 bytes
First seen:2026-10-07 02:59:57 UTC
Last seen:Never
File type:Executable exe
MIME type:application/vnd.microsoft.portable-executable
imphash a56f115ee5ef2625bd949acaeec66b76 (57 x PureHVNC, 57 x Stealc, 36 x CoinMiner)
ssdeep 393216:cpxQTv84vaMxyerYiSX6Rse9SWC6Yuh7Ueh:gRlesiNRseIpAV9h
TLSH T1CD07337D31C8042CE68CEF3B173BB58882EBBD366D389125E245F1BD5534AE152F1A29
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 686c74f4c298e4e0 (3 x CNBackdoor, 1 x PureCrypter, 1 x PureLogsStealer)
Reporter aachum
Tags:CNBackdoor exe


Avatar
iamaachum
https://dl89sfilesbase.top/downloads/K3sR1bn0Z/Packed

CNBackdoor C2:
https://tommysbakescodes.ws/mnlinmwv/isnris.php

Intelligence

File Origin
# of uploads :
1
# of downloads :
202
Origin country :
ES ES
Vendor Threat Intelligence
No detections
Malware family:
n/a
ID:
1
File name:
exe
Verdict:
No threats detected
Analysis date:
2026-10-07 03:15:28 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/fdd15979-1a0c-4f9e-aecf-fdd8602dbf67

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/90925/
Detection(s):
SecuriteInfo.com.Trojan.Siggen34.58530.39686169.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6ad022daf4e17c78f715508b
Tags:
autorun virus shell sage
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:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
obfuscated packed packed themidawinlicense
Link:
https://www.filescan.io/uploads/6ac5b5dc4ada3da57627577d/reports/d592c84e-8786-4eeb-bc8f-dad3529d9d55/overview
Verdict:
Malicious
Labled as:
Win/malicious_confidence_90%
Link:
https://www.hybrid-analysis.com/sample/749009376b352dfd21f7289f549c0ed3ff515f813eb1eaf2e604ba75be02c9c2
Verdict:
Malicious
File Type:
exe x64
First seen:
2026-10-07T00:23:00Z UTC
Last seen:
2026-10-07T02:25:00Z UTC
Hits:
~10
Link:
https://opentip.kaspersky.com/749009376b352dfd21f7289f549c0ed3ff515f813eb1eaf2e604ba75be02c9c2/results?tab=lookup
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/f2e6780b-0271-4055-b64d-9c5cc8ec0075
Result
Threat name:
CNB Bot
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1983322
Signature
.NET source code contains method to dynamically call methods (often used by packers)
Adds a directory exclusion to Windows Defender
Antivirus / Scanner detection for submitted sample
Antivirus detection for URL or domain
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
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
Suricata IDS alerts for network traffic
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 CNB Bot
Yara detected GenericBot
Yara detected MSIL Injector
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1983322 Sample: Installer21691x64.exe Startdate: 07/10/2026 Architecture: WINDOWS Score: 100 47 tommysbakescodes.ws 2->47 49 tommysbakescodes.cv 2->49 51 tabbysbakescodes.ws 2->51 57 Suricata IDS alerts for network traffic 2->57 59 Antivirus detection for URL or domain 2->59 61 Antivirus / Scanner detection for submitted sample 2->61 63 11 other signatures 2->63 10 Installer21691x64.exe 2 2->10         started        signatures3 process4 file5 43 C:\Users\user\AppData\Local\...\tagSyncID.exe, PE32+ 10->43 dropped 45 C:\Users\user\...\Installer21691x64.exe.log, CSV 10->45 dropped 67 Detected unpacking (changes PE section rights) 10->67 69 Suspicious powershell command line found 10->69 71 Tries to detect sandboxes and other dynamic analysis tools (window names) 10->71 73 5 other signatures 10->73 14 powershell.exe 12 10->14         started        16 powershell.exe 23 10->16         started        signatures6 process7 process8 18 tagSyncID.exe 14->18         started        22 conhost.exe 14->22         started        24 WmiPrvSE.exe 16->24         started        26 conhost.exe 16->26         started        file9 37 C:\Users\user\AppData\...\services.exe, PE32+ 18->37 dropped 39 C:\Users\user\AppData\Roaming\...\pcwutl.dll, PE32+ 18->39 dropped 41 C:\Users\user\AppData\Roaming\...\dosvc.dll, PE32+ 18->41 dropped 65 Drops PE files with benign system names 18->65 28 services.exe 18->28         started        31 cmd.exe 18->31         started        signatures10 process11 dnsIp12 53 tommysbakescodes.ws 172.67.148.26, 443, 49744, 49748 CLOUDFLARENET-CloudflareIncUS Canada 28->53 55 tabbysbakescodes.ws 192.64.119.157, 443, 49745, 49747 NAMECHEAP-NET-NamecheapIncUS United States 28->55 33 conhost.exe 31->33         started        35 timeout.exe 31->35         started        process13
Score:
100%
Verdict:
Malware
File Type:
PE
Link:
https://malprob.io/report/749009376b352dfd21f7289f549c0ed3ff515f813eb1eaf2e604ba75be02c9c2
Verdict:
inconclusive
YARA:
5 match(es)
Tags:
Executable PE (Portable Executable) PE File Layout Win 64 Exe x64
Link:
https://app.malva.re/file/770e477b5f8cd94a6783140a3bb62225
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/749009376b352dfd21f7289f549c0ed3ff515f813eb1eaf2e604ba75be02c9c2/
Threat name:
Win64.Trojan.AdvML
Create hunting rule
Status:
Malicious
First seen:
2026-10-07 03:00:43 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=osiasn3lguw72ipxfcpvjhao2p7vcx4bh2y6v4xgas5hlpqczhba._file
Verdict:
malicious
Label(s):
PureCrypter
Create hunting rule
Link:
https://reports.threatray.com/daa4ba7d-9df2-4e4d-aa59-4d5ae36e62c0
Result
Malware family:
cnbackdoor
Create hunting rule
Score:
  10/10
Tags:
family:cnbackdoor backdoor defense_evasion discovery execution persistence privilege_escalation themida trojan
Link:
https://tria.ge/reports/261007-dhk9ascw5r/
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
Reads the TCP/IP host and domain name from the registry
Suspicious use of NtSetInformationThreadHideFromDebugger
Checks whether UAC is enabled
Enumerates connected drives
Checks BIOS information in registry
Creates a file in the Startup directory
Executes a file named after a Windows system binary
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
Family: CNBackdoor
Unpacked files
SH256 hash:
749009376b352dfd21f7289f549c0ed3ff515f813eb1eaf2e604ba75be02c9c2
MD5 hash:
770e477b5f8cd94a6783140a3bb62225
SHA1 hash:
36c20408877494fe44a04809a7730efc0d0a323a
Detections:
INDICATOR_EXE_Packed_Themida
Create hunting rule
Link:
https://www.unpac.me/results/3d379e44-421f-44b8-acaa-5f0fc05a59d0/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Legit
Score:
0.14
Link:
https://yomi.yoroi.company/submissions/749009376b352dfd21f7289f549c0ed3ff515f813eb1eaf2e604ba75be02c9c2

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: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:WIN_Malware_Unknown_ForgeAuto_6717780a_Extrait
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (pe, etat extrait)

File information

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

Web download

CNBackdoor

iso 29ab58d7ef08f98ba4cb0e20b0989eb8460c6247283c530d41bc9dcf67a9e711

CNBackdoor

Executable exe 749009376b352dfd21f7289f549c0ed3ff515f813eb1eaf2e604ba75be02c9c2

(this sample)

  
Link
https://tria.ge/261007-cfdwrsbz6l/behavioral2
  
Dropped by
SHA256 29ab58d7ef08f98ba4cb0e20b0989eb8460c6247283c530d41bc9dcf67a9e711
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/90925/
  
Dropped by
MD5 b5de2a03c256cbe4b89e8b4ea0da8df7

Comments