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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c40448996b00ea044fd7b9e0457097fa360eabe7ff3ab960ce7034b04a6653b4. 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


Threat unknown


Vendor detections: 13


Intelligence 13 IOCs YARA 5 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: c40448996b00ea044fd7b9e0457097fa360eabe7ff3ab960ce7034b04a6653b4
SHA3-384 hash: f94acd9b12a0ef3fc0074a870c621c37463656767c5718818a83affd23c8b40295f958e4da1c4edb2ecb17b7e569e9a4
SHA1 hash: 4a0cd33f52bc134b7a9be7948645fc8987287969
MD5 hash: b60b35ab52f34dc3e35618c9e62672f7
humanhash: mountain-network-item-washington
File name:31260547.js
Download: download sample
File size:280'249 bytes
First seen:2026-11-11 19:23:16 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 6144:PptlFnIxKvoYSvTG1UTb/y7XGw5FjOscanEo0MzAz7WVs0eeh:BtlFnsJYSvBijjj9tnL0MzAz620Ph
TLSH T13B5412C02F206DAB8279CB19753E0B0EBFD123C66441FACF4274B5AA5B3A7716709C56
Magika javascript
Reporter threatcat_ch
Tags:js

Intelligence

File Origin
# of uploads :
1
# of downloads :
193
Origin country :
CH CH
Vendor Threat Intelligence
No detections
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6af4c0a9beffd05f052b116d
Tags:
proxy java
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Creating a process from a recently created file
Creating a process with a hidden window
Launching a process
Deleting a recently created file
Creating synchronization primitives
DNS request
Connection attempt
Sending an HTTP GET request
Creating a file
Enabling the 'hidden' option for recently created files
Possible injection to a system process
Creating a file in the %temp% subdirectories
Creating a file in the %temp% directory
Unauthorized injection to a system process
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
anti-vm base64 base64 encrypted fingerprint obfuscated repaired
Link:
https://www.filescan.io/uploads/6af4c0dbcb2d27cc7aa3aa9c/reports/885948af-b5dc-4289-a224-7e64368ced3b/overview
Verdict:
Malicious
Labled as:
JS/TrojanDropper.Agent
Link:
https://www.hybrid-analysis.com/sample/c40448996b00ea044fd7b9e0457097fa360eabe7ff3ab960ce7034b04a6653b4
Verdict:
Malicious
File Type:
js
Link:
https://opentip.kaspersky.com/c40448996b00ea044fd7b9e0457097fa360eabe7ff3ab960ce7034b04a6653b4/results?tab=lookup
Result
Threat name:
Clipboard Hijacker
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/2004264
Signature
Antivirus detection for dropped file
Bypasses PowerShell execution policy
Creates processes via WMI
Injects a PE file into a foreign processes
Installs a global keyboard hook
JavaScript source code contains functionality to generate code involving a shell, file or stream
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Modifies the context of a thread in another process (thread injection)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sigma detected: Dot net compiler compiles file from suspicious location
Sigma detected: Script Interpreter Execution From Suspicious Folder
Sigma detected: Silenttrinity Stager Msbuild Activity
Sigma detected: Suspicious Script Execution From Temp Folder
Sigma detected: WScript or CScript Dropper
Suricata IDS alerts for network traffic
Suspicious execution chain found
Tries to detect sandboxes / dynamic malware analysis system (Installed program check)
Uses dynamic DNS services
Windows Scripting host queries suspicious COM object (likely to drop second stage)
Writes to foreign memory regions
Wscript starts Powershell (via cmd or directly)
Yara detected Clipboard Hijacker
Yara detected Powershell decode and execute
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 2004264 Sample: 31260547.js Startdate: 11/11/2026 Architecture: WINDOWS Score: 100 40 hostj.duckdns.org 2->40 42 mr-b01.tm-azurefd.net 2->42 44 2 other IPs or domains 2->44 46 Suricata IDS alerts for network traffic 2->46 48 Malicious sample detected (through community Yara rule) 2->48 50 Antivirus detection for dropped file 2->50 54 8 other signatures 2->54 9 wscript.exe 1 2 2->9         started        signatures3 52 Uses dynamic DNS services 40->52 process4 file5 32 C:\Users\user\AppData\Local\...\w74359.ps1, Unicode 9->32 dropped 62 JScript performs obfuscated calls to suspicious functions 9->62 64 Wscript starts Powershell (via cmd or directly) 9->64 66 Bypasses PowerShell execution policy 9->66 68 3 other signatures 9->68 13 powershell.exe 21 9->13         started        signatures6 process7 file8 34 C:\Users\user\AppData\...\uy2ii04h.cmdline, Unicode 13->34 dropped 70 Writes to foreign memory regions 13->70 72 Modifies the context of a thread in another process (thread injection) 13->72 74 Injects a PE file into a foreign processes 13->74 17 MSBuild.exe 14 10 13->17         started        22 conhost.exe 13->22         started        24 csc.exe 3 13->24         started        signatures9 process10 dnsIp11 36 hostj.duckdns.org 31.13.190.2, 49743, 5209 M247RO Germany 17->36 38 ip-api.com 208.95.112.1, 49744, 80 TUT-AS-TotalUptimeTechnologiesLLCUS United States 17->38 28 C:\Users\user\AppData\Local\...\msasn1.dll, PE32+ 17->28 dropped 56 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 17->56 58 Installs a global keyboard hook 17->58 60 Tries to detect sandboxes / dynamic malware analysis system (Installed program check) 17->60 30 C:\Users\user\AppData\Local\...\uy2ii04h.dll, PE32 24->30 dropped 26 cvtres.exe 1 24->26         started        file12 signatures13 process14
Score:
98%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/c40448996b00ea044fd7b9e0457097fa360eabe7ff3ab960ce7034b04a6653b4
Verdict:
Malware
YARA:
3 match(es)
Tags:
Base64 Block Contains Base64 Block DeObfuscated Javascript PowerShell T1027 T1059.001 T1059.007
Link:
https://app.malva.re/file/b60b35ab52f34dc3e35618c9e62672f7
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/c40448996b00ea044fd7b9e0457097fa360eabe7ff3ab960ce7034b04a6653b4/
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=yqcerglladvait6xxhqek4ex7i3a5k7h745lsygooa2lastgko2a._file
Result
Malware family:
n/a
Score:
  10/10
Tags:
discovery execution
Link:
https://tria.ge/reports/261111-x3yjxabw7x/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Command and Scripting Interpreter: PowerShell
Reads the TCP/IP host and domain name from the registry
Suspicious use of SetThreadContext
Looks up external IP address via web service
Process spawned unexpected child process
Malware Family:
n/a
Malicious:
True
Tags:
javascript
Link:
https://intel.virussign.com/intelligence/file/c40448996b00ea044fd7b9e0457097fa360eabe7ff3ab960ce7034b04a6653b4
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/c40448996b00ea044fd7b9e0457097fa360eabe7ff3ab960ce7034b04a6653b4

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:SCRIPT_Dropper_Unknown_ForgeAuto_aaa464f7
Create hunting rule
Author:Marjoriefort
Description:Detects Unknown (script_js, etat binaire)
Rule name:SUSP_Script_PowerShell_Hidden_Launcher
Create hunting rule
Author:Marjoriefort
Description:Script (JS/VBS) lancant PowerShell en mode furtif - dropper frais MalwareBazaar
Reference:Veille fraicheur 2026-09-14 / cluster misses web
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:WScript_Shell_PowerShell_Combo_RID32E7
Create hunting rule
Author:Florian Roth
Description:Detects malware from Middle Eastern campaign reported by Talos
Reference:http://blog.talosintelligence.com/2018/02/targeted-attacks-in-middle-east.html

File information

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

Malspam

Java Script (JS) js c40448996b00ea044fd7b9e0457097fa360eabe7ff3ab960ce7034b04a6653b4

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments