Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b677d297fb862c2…

MALICIOUS

PDF

276.9 KB
MD5: 718148a5712c1fec7b50acc89eee2aa0 SHA-1: 61aec2a1e293659a81722f834d0ea4b5ff1604b1 SHA-256: 5b677d297fb862c2d223973697479ee53a91d03073b14556f421b3d74f136b9d
116 Risk Score

Malware Insights

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

The PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains an embedded URL pointing to 'microsoft.com', presented as an image-only document with an action trigger. This suggests an attempt to deceive users into clicking the link, likely leading to the download of a secondary malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8468

Heuristics 5

  • ClamAV: Win.Downloader.DocInPDF-10008217-3 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Win.Downloader.DocInPDF-10008217-3
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 0 text block(s), carries a click-outward action, and is only 276 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://microsoft.com
    • http://schemas.microsoft.com/office/2004/12/omml
    • http://www.w3.org/TR/REC-html40
    • http://schemas.openxmlformats.org/drawingml/2006/main

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