Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a8735e76a5a22a…

MALICIOUS

PDF

156.0 KB Created: 2021-05-11 11:26:39 +03:00 Authoring application: Theresa Thomas (via Paula Bradley I II III IV V MD DDS PhD DVM) First seen: 2021-05-26
MD5: a0a7c896bca131191ff3a398e827d873 SHA-1: c6836deb3dfc2e199a78b1e1b9708f1f6175ffc6 SHA-256: 01a8735e76a5a22ae946924eab7dca90b8ef46c6c2a14d2aed8ea22fece16831
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, typical of phishing campaigns. It contains an external URI pointing to 'http://h3fsqvx.dab.rxiana.com', which is likely the destination for the malicious payload or phishing page. The presence of a local builder path alongside the remote link further suggests a crafted attack.

Machine Learning

  • Nyx PDF Classifier clean score 0.2321

Heuristics 4

  • Image-only PDF carries local builder path plus remote links high PDF_IMAGE_LURE_LOCAL_FILE_AND_REMOTE_URI
    PDF is an image-only click lure that contains both remote HTTP(S) destinations and a file:/// URI exposing a local Windows/Linux builder path. That co-occurrence is not normal document linking; it matches generated clickbait/phishing carriers where the visible page is a screenshot and the clickable area sends the user to external infrastructure.
  • 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 156 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://h3fsqvx.dab.rxiana.com PDF link annotation

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