MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 d510513ccbb33c26a814ac58e781688d20780ee08a85f5962a94866cf988a0a4. 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


Formbook


Vendor detections: 12


Intelligence 12 IOCs YARA 6 File information Comments
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SHA256 hash: d510513ccbb33c26a814ac58e781688d20780ee08a85f5962a94866cf988a0a4
SHA3-384 hash: 440581547ef6f0d6c4eb50b455b0513055dc3356a86bf5d1047c3416d7329339535a08c84fa89391a550fe166081a8ff
SHA1 hash: 22c064c419e029347ceadd0be74d8388ca6339c7
MD5 hash: f8274e2ba5264f52d747ba39a55c2687
humanhash: skylark-snake-ten-carolina
File name:CUHKMC PL-Q-202509·pdf.js
Download: download sample
Signature Formbook
Create hunting rule
File size:801'003 bytes
First seen:2025-09-29 14:03:38 UTC
Last seen:Never
File type:Java Script (JS) js
MIME type:text/plain
ssdeep 24576:c3vDLrs7NAKfyN6jczIaCeEGaQg0Ti/s0Xw5MDX2rAdG18spOGkibmtq0mn:c3vDLrs7NAKfyN6jcz9CeEGaQTTi/rXK
TLSH T1F6053970CA2001774F87AB9CBCA90761C6ADD315862745B0F6DD8B0DA10E9ECE3BD667
Magika javascript
Reporter abuse_ch
Tags:FormBook js

Intelligence

File Origin
# of uploads :
1
# of downloads :
82
Origin country :
SE SE
Vendor Threat Intelligence
Verdict:
Malicious
Score:
96.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68da91fc40b7da0b4eb8ba82
Tags:
spawn virus
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint
Link:
https://www.filescan.io/uploads/68da923e74e5a28989984b28/reports/56f646d3-17ea-42c2-8dbd-8b3970307820/overview
Verdict:
Malicious
Labled as:
Generik.CKSIILD trojan
Link:
https://www.hybrid-analysis.com/sample/d510513ccbb33c26a814ac58e781688d20780ee08a85f5962a94866cf988a0a4
Verdict:
Malicious
File Type:
js
First seen:
2025-09-28T21:48:00Z UTC
Last seen:
2025-09-28T21:48:00Z UTC
Hits:
~100
Detections:
Trojan.JS.SAgent.sb HEUR:Trojan.Script.SAgent.gen HEUR:Trojan.Script.Generic Trojan.PowerShell.Strion.sb
Link:
https://opentip.kaspersky.com/d510513ccbb33c26a814ac58e781688d20780ee08a85f5962a94866cf988a0a4/results?tab=lookup
Result
Threat name:
FormBook, GuLoader
Create hunting rule
Detection:
malicious
Classification:
troj.expl.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1785952
Signature
Creates processes via WMI
Early bird code injection technique detected
Found suspicious powershell code related to unpacking or dynamic code loading
JavaScript file contains Antivirus product strings
JavaScript source code contains functionality to generate code involving a shell, file or stream
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sigma detected: WScript or CScript Dropper
Suspicious execution chain found
Switches to a custom stack to bypass stack traces
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 FormBook
Yara detected GuLoader
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1785952 Sample: CUHKMC PL-Q-202509#U00b7pdf.js Startdate: 29/09/2025 Architecture: WINDOWS Score: 100 31 drive.usercontent.google.com 2->31 33 drive.google.com 2->33 39 Malicious sample detected (through community Yara rule) 2->39 41 Multi AV Scanner detection for submitted file 2->41 43 Yara detected FormBook 2->43 45 4 other signatures 2->45 8 powershell.exe 18 2->8         started        11 wscript.exe 1 1 2->11         started        signatures3 process4 signatures5 47 Early bird code injection technique detected 8->47 49 Writes to foreign memory regions 8->49 51 Found suspicious powershell code related to unpacking or dynamic code loading 8->51 53 Queues an APC in another process (thread injection) 8->53 13 dxdiag.exe 6 8->13         started        16 conhost.exe 8->16         started        18 msiexec.exe 8->18         started        23 10 other processes 8->23 55 Wscript starts Powershell (via cmd or directly) 11->55 57 Windows Scripting host queries suspicious COM object (likely to drop second stage) 11->57 59 Suspicious execution chain found 11->59 61 Creates processes via WMI 11->61 20 powershell.exe 14 18 11->20         started        process6 dnsIp7 63 Maps a DLL or memory area into another process 13->63 65 Switches to a custom stack to bypass stack traces 13->65 25 CdNFVlih1WLp3.exe 13->25 injected 27 AqJ3y5mymZA.exe 13->27 injected 35 drive.usercontent.google.com 172.217.165.193, 443, 49688, 49694 GOOGLEUS United States 20->35 37 drive.google.com 172.217.165.206, 443, 49687, 49693 GOOGLEUS United States 20->37 67 Found suspicious powershell code related to unpacking or dynamic code loading 20->67 29 conhost.exe 20->29         started        signatures8 process9
Score:
79%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/d510513ccbb33c26a814ac58e781688d20780ee08a85f5962a94866cf988a0a4
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/d510513ccbb33c26a814ac58e781688d20780ee08a85f5962a94866cf988a0a4/
Verdict:
Malicious
Threat:
Family.FORMBOOK
Link:
https://tip.neiki.dev/file/d510513ccbb33c26a814ac58e781688d20780ee08a85f5962a94866cf988a0a4
Threat name:
Script-JS.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-09-29 03:45:59 UTC
File Type:
Text
AV detection:
6 of 24 (25.00%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=2uifcpglwm6cnkauvrmopaliruqhqdxarkc7lfrkssdgz6miucsa._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook discovery execution rat spyware stealer trojan
Link:
https://tria.ge/reports/250929-rd6w4agq41/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of WriteProcessMemory
Command and Scripting Interpreter: JavaScript
System Location Discovery: System Language Discovery
Suspicious use of NtCreateThreadExHideFromDebugger
Suspicious use of NtSetInformationThreadHideFromDebugger
Legitimate hosting services abused for malware hosting/C2
Badlisted process makes network request
Formbook payload
Formbook
Formbook family
Process spawned unexpected child process
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/d510513ccbb33c26a814ac58e781688d20780ee08a85f5962a94866cf988a0a4

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:Cerberus
Create hunting rule
Author:Jean-Philippe Teissier / @Jipe_
Description:Cerberus
Rule name:CP_AllMal_Detector
Create hunting rule
Author:DiegoAnalytics
Description:CrossPlatform All Malwares Detector: Detect PE, ELF, Mach-O, scripts, archives; overlay, obfuscation, encryption, spoofing, hiding, high entropy, network communication
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:dependsonpythonailib
Create hunting rule
Author:Tim Brown
Description:Hunts for dependencies on Python AI libraries
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:test_Malaysia
Create hunting rule
Author:rectifyq
Description:Detects file containing malaysia string

File information

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

Comments