Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe02fce8e4f0f5a3…

MALICIOUS

PDF

93.0 KB Created: 2021-08-12 07:25:05 -07:00 Authoring application: Mrs. Ms. Miss Heather Andrews (via Jessica Matthews) First seen: 2021-08-20
MD5: 4338407e2f924b2e608e198ec78a472f SHA-1: f7d7cc8ea6dc1a33dd5ee2bdb3020348767b60d4 SHA-256: fe02fce8e4f0f5a30a92685988ac1552df7871e9954cf6a5eea6b5df4c74ed91
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF is identified as an image-only lure, a common tactic in phishing campaigns to disguise malicious links. The embedded URL, https://bit.ly/3AzvmmF?4a40, is likely intended to redirect the user to a malicious site. The heuristic firings strongly suggest a phishing attempt via a document attachment.

Machine Learning

  • Nyx PDF Classifier clean score 0.0187

Heuristics 3

  • Image-only PDF lure links through URL shortener high PDF_IMAGE_LURE_SHORTENER_LINK
    PDF is image-heavy with little real text and its clickable action points to a URL shortener. This is a high-confidence credential-phishing carrier shape: the visible page is a screenshot-like prompt while the destination is hidden behind redirect infrastructure.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 1 text block(s), carries a click-outward action, and is only 93 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://bit.ly/3AzvmmF?4a40 In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000004f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F8 11832 bytes
SHA-256: f8a2d45fa0170d3b824297a83409b10dead2dee7efa46c8fa8cfc6370a84b794

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