Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ac1612535b69812…

MALICIOUS

PDF

21.4 KB
MD5: 3ac125ca48adf1c4f3c63431032c44ff SHA-1: 9660d299eb3317cb12a11788acddb07ca8f7159c SHA-256: 5ac1612535b6981259cfac95efe84c5608cf51e3a49b9c1e00c5d374f90d10b2
84 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF employs an image-based lure, a common tactic for phishing or scams, indicated by its small size and the presence of an action trigger. It contains an external URI pointing to a URL that appears to be a redirect, potentially leading to a malicious site. ClamAV detection further supports its malicious nature.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4605

Heuristics 4

  • ClamAV: Pdf.Dropper.Agent-7140478-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7140478-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 2 image(s), only 1 text block(s), carries a click-outward action, and is only 21 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
  • 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 http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/pdf/1.3/
    • https://appengine.google.com/_ah/logout?continue=https%3A%2F%2Fs3.sovereigncars.org.uk%2Finv005189.pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_cff_off0000136a.bin
6db39fe1fc9fa7d77bf6c572894eb52cf6be89c0c86e905008a8d287b1bfdacf		 pdf-font-stream PDF embedded font (cff) at offset 0x136A 2567 bytes

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