Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3c80d919933c657…

MALICIOUS

PDF

162.5 KB Created: 2020-08-07 04:32:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 461fcd04cd7603e03c05fd83cf109092 SHA-1: c1597e693a4536a333006cc5f625078e1ae918da SHA-256: d3c80d919933c657c932c717b4a021b77998f43af0e4bb27a033430168895f7b
134 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.ru, which is disguised as a "Campbell Biology 10th test bank pdf". This indicates a phishing or social engineering attempt to direct the user to malicious infrastructure. No scripts were extracted, but the heuristic firing and the embedded URL strongly suggest a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.ru/pify?keyword=campbell+biology+10th+test+bank+pdf In PDF document text
    • http://files.anthonyscafebistro.com/uploads/1/3/1/3/131382134/134fe3.pdfIn PDF document text
    • http://files.dogbitesbakery.com/uploads/1/3/0/7/130738779/pisowew-vesutiregatuf.pdfIn PDF document text
    • http://files.bcraftmath.com/uploads/1/3/0/9/130969172/52f41.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/21507701674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1824/8601/files/16935368814.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7181/3285/files/mimuzogebadajuvabidenevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5778/9605/files/92047703202.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6780/1749/files/zuxasuwomujuvenemufuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9110/7752/files/15640173429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8841/8718/files/kivawawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4572/5094/files/lowojapamix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7495/3120/files/cops_theme_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6119/9526/files/17461441907.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/7082322425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dedijadexurusefux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7852/4831/files/90664754525.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7978/5886/files/82969439465.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://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002265c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2265C 5764 bytes
SHA-256: e27a13513fa05c31656f85887368481249aabf63f68bc6f51798d83e131bfdd6
font_01_sfnt_off000239e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x239E0 14256 bytes
SHA-256: 07e814d5518a512e496f71207ee6ea6ef4c97834c9a7c7ea6b4074515e57b9b5
font_02_sfnt_off00026710.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x26710 16060 bytes
SHA-256: d7dbcefd5a9d087f9dbd48d87e5b82950a900fa0f666d4a1f78598b818f3f613

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