Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d6fed5be81e9af2…

MALICIOUS

PDF

86.0 KB Created: 2021-07-21 15:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 7b362c5548ecac9743c75ccbb1cd73a8 SHA-1: 9873b0ca2d82dd3d3c8e14ca7e966f364b6e6f89 SHA-256: 2d6fed5be81e9af2f72177433b7b83010b236143b69a6fb4c9b0111bb9eb5b9a
136 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it's a PDF phishing lure using an external redirector. The embedded URL, while marked as benign, is part of a chain that likely leads to a malicious destination. No scripts were extracted, but the PDF structure itself suggests a phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9990

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://feedproxy.google.com/~r/razvivatel/yapz/~3/-MXWpcYQ7kA/square?utm_term=examples+of+personal+success+stories PDF link annotation
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60ec7cd8dbb514329fae85b3/1626111192609/faweximurinu.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6c89a2b0b938881bcf91/t/60f7c0acbad1557b415f53c9/1626849452131/jafodijidewizuv.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60edf34b930ff80baa0e3ca6/1626207052087/process_of_soil_formation.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f7e275d0dde27ef5774879/1626858101873/nlp_books_for_beginners_free_download.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f1b8306d209c572445e37d/1626454064482/units_ones_tens_hundreds_chart.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e8c1bbc7fd651ae62a6687/1625866683690/of_the_flock_crossword_answer.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f069efdd8e8d2fca67775e/1626368496151/56391156788.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf69b23f3791685666e32d/t/60f0ccc6db86a67d857d717d/1626393798272/solve_for_x_ratio.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f6e3125d696d6c87a6b286/1626792723016/28520781347.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f7ad2edea8142cbc29d706/1626844462551/13842182075.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac4e0d5abe22cec5c4b22/t/60f73fd9bea95d4cec0ec3a8/1626816473154/28739413320.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f4e56d22602c08ca02b0b8/1626662253587/air_force_reserve_pay_chart_2020.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac59fb7e9621e2f466549/t/60f0ec839392da325e93cf55/1626401923180/deguviboxukog.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac5994c6b1805bc4acbdb/t/60f1521ae7c78223958a6104/1626427930285/31374032937.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6bff0d8d387fecc8b153/t/60f338786c177f33d7a18cdd/1626552440865/the_shell_shack_seafood.pdfIn PDF document text
    • https://static1.squarespace.com/static/60aac52a97a1d73ddacfe14c/t/60ee570ab1f8b95648877a75/1626232586746/3331886409.pdfIn PDF document text
    • https://static1.squarespace.com/static/60bf6cad3a95e91b59aa2418/t/60e853781e8f1a711b29569a/1625838456306/87142693433.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC45 10828 bytes
SHA-256: 91e4fc44b5df2c232dbb6e0ed25ea9e746cfcf11a7b8d53d09153f1af7499c56
font_01_sfnt_off00010541.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10541 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011d53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D53 16792 bytes
SHA-256: 1c4aa21c8162f6f22cf6333bd9f6c1142b3565c9e452e9d65cd5dd4ebde32f48