Malicious PDF — malware analysis report

Static analysis result for SHA-256 09c42b8d83803d15…

MALICIOUS

PDF

51.5 KB
MD5: 8c54bf9e9013b820ce3bebf9cb88f689 SHA-1: bbe0bf7537241b25ea007b386eb651466dcc1557 SHA-256: 09c42b8d83803d156de74d61fe14cc06072599442a6da4212e8a588c3df9a7ad
70 Risk Score

Malware Insights

MITRE ATT&CK
T1059.007 JavaScript T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and is flagged as a malicious ML_NYX_PDF_MALICIOUS sample. It also uses a common screenshot lure, indicating it's designed to trick users into interacting with a link. The embedded JavaScript likely facilitates the redirection to the malicious URL, which is disguised within a seemingly benign URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9986

Heuristics 5

  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 51 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • JavaScript action low PDF_JAVASCRIPT
    PDF contains a /JavaScript action. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules. (matched inside decoded stream)
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://www.dynaforms.com
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • https://ipfs.infura.io/ipfs/QmNPCaSYzPMoeDKfBtaW64FvTbgYL117ZYMHtXnMYThYS1#http://www.booking.com/invoice-1620804301.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000c987.js
14d895f1f9d49203ad867114f2888f738ade135daeaceb9fbf4a57f24e641d81		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xC987 2761 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.