Malicious PDF — malware analysis report

Static analysis result for SHA-256 5eaa1f5305f4c252…

MALICIOUS

PDF

30.5 KB
MD5: 2c182c48da297dcee3c7cafab4e46161 SHA-1: d031305516b4791ec52a2bd03450d185c16e8dd0 SHA-256: 5eaa1f5305f4c25292dff29257cd3e14ba3f956f6f8ddb206c0ee3e09af8244e
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as a phishing lure due to its image-heavy nature and the presence of a click-outward action. The embedded URL, https://bit.ly/bcomprob-sbaa1, is a URL shortener, commonly used to obscure malicious destinations. No scripts were extracted, but the structure strongly suggests a phishing attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0002

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 2 image(s), only 2 text block(s), carries a click-outward action, and is only 30 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 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://bit.ly/bcomprob-sbaa1

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_cff_off0000245b.bin
b48993421955600d1b116370b7042119311f15621113893de5861a7d5940149c		 pdf-font-stream PDF embedded font (cff) at offset 0x245B 3591 bytes
font_01_cff_off00003380.bin
ac375c14a313f752b48a98bc07576f1424687763a069024495831b0a719f231e		 pdf-font-stream PDF embedded font (cff) at offset 0x3380 1435 bytes

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