MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 7820b5d94f72bdf0f6d13eaf7f7772e483b3cc8b5cf15e321a72d949ba3a4baf. 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: 9


Intelligence 9 IOCs YARA 1 File information Comments

SHA256 hash: 7820b5d94f72bdf0f6d13eaf7f7772e483b3cc8b5cf15e321a72d949ba3a4baf
SHA3-384 hash: 6c30a497d24e5744212499f6cf0d8a8f2175178506746c60e88a3a47a7e6b51097ad031404e78460bb0b050d4bf7c631
SHA1 hash: 88b02462e149b8ac3e4e336e94fcaaab1d8c82d7
MD5 hash: a80ab294f96c30b15929be8c25335c5c
humanhash: fillet-cola-queen-nineteen
File name:KMUTT 8578·pdf.js
Download: download sample
File size:14'029 bytes
First seen:2026-07-14 10:10:23 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 384:vB8xDW/jz3/mgA/3f0wVz/T5PUUKYnyY1na:vB8lW/jz3/mgA/3f0wVzVUUKQyYpa
TLSH T1B152EB7C991AF38449409F4F78BFA4A547ECC00CC5E2FDF7F29752AA397A104A163625
Magika javascript
Reporter abuse_ch
Tags:js

Intelligence


File Origin
# of uploads :
1
# of downloads :
125
Origin country :
SE SE
Vendor Threat Intelligence
No detections
Verdict:
Likely Malicious
Threat level:
  7.5/10
Confidence:
100%
Tags:
fingerprint repaired
Verdict:
Malicious
File Type:
js
First seen:
2026-07-14T00:36:00Z UTC
Last seen:
2026-07-16T05:47:00Z UTC
Hits:
~100
Result
Threat name:
n/a
Detection:
malicious
Classification:
evad
Score:
100 / 100
Signature
Antivirus / Scanner detection for submitted sample
Found suspicious powershell code related to unpacking or dynamic code loading
Injects code into the Windows Explorer (explorer.exe)
JavaScript source code contains functionality to generate code involving a shell, file or stream
Joe Sandbox ML detected suspicious sample
JScript performs obfuscated calls to suspicious functions
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for submitted file
Obfuscated command line found
Sigma detected: WScript or CScript Dropper
Windows Scripting host queries suspicious COM object (likely to drop second stage)
WScript reads language and country specific registry keys (likely country aware script)
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1942108 Sample: KMUTT 8578#U00b7pdf.js Startdate: 14/07/2026 Architecture: WINDOWS Score: 100 30 drive.usercontent.google.com 2->30 32 drive.google.com 2->32 42 Malicious sample detected (through community Yara rule) 2->42 44 Antivirus / Scanner detection for submitted sample 2->44 46 Multi AV Scanner detection for submitted file 2->46 48 4 other signatures 2->48 8 wscript.exe 1 2 2->8         started        12 explorer.exe 4 7 2->12         started        14 powershell.exe 15 2->14         started        16 rundll32.exe 2->16         started        signatures3 process4 file5 28 C:\Users\user\AppData\Local\Arre, ASCII 8->28 dropped 50 JScript performs obfuscated calls to suspicious functions 8->50 52 Injects code into the Windows Explorer (explorer.exe) 8->52 54 Windows Scripting host queries suspicious COM object (likely to drop second stage) 8->54 56 WScript reads language and country specific registry keys (likely country aware script) 8->56 18 explorer.exe 8->18         started        58 Obfuscated command line found 12->58 21 powershell.exe 17 12->21         started        60 Found suspicious powershell code related to unpacking or dynamic code loading 14->60 24 conhost.exe 14->24         started        signatures6 process7 dnsIp8 38 Obfuscated command line found 18->38 34 drive.usercontent.google.com 142.250.65.225, 443, 49705 GOOGLE-GoogleLLCUS United States 21->34 36 drive.google.com 142.251.211.174, 443, 49704 GOOGLE-GoogleLLCUS United States 21->36 40 Found suspicious powershell code related to unpacking or dynamic code loading 21->40 26 conhost.exe 21->26         started        signatures9 process10
Gathering data
Threat name:
Script-JS.Trojan.Cryxos
Status:
Malicious
First seen:
2026-07-14 10:11:48 UTC
File Type:
Text (JavaScript)
AV detection:
9 of 24 (37.50%)
Threat level:
  5/5
Result
Malware family:
n/a
Score:
  8/10
Tags:
adware discovery execution spyware
Behaviour
Modifies Internet Explorer settings
Modifies registry class
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
Enumerates physical storage devices
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Contacts third-party web service commonly abused for C2
Drops desktop.ini file(s)
Checks computer location settings
Badlisted process makes network request
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:Sus_CMD_Powershell_Usage
Author:XiAnzheng
Description:May Contain(Obfuscated or no) Powershell or CMD Command that can be abused by threat actor(can create FP)

File information


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

Comments