Malicious PDF — malware analysis report

Static analysis result for SHA-256 85caf78ba979579a…

MALICIOUS

PDF

45.7 KB Created: 2020-08-25 12:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 782784d186249010f3affbaca7bad995 SHA-1: b7221d3ac6325d4b97059f5c05494467ee95a0aa SHA-256: 85caf78ba979579a7fde029e1a41b6de593e4712b60e3ed6d27d3958cc6b9432
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous embedded links, with a significant portion identified as belonging to a link farm and redirecting to malicious infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=davontae+harris+scouting+report, which is flagged as malicious. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lead the user to malicious content, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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=davontae+harris+scouting+report In PDF document text
    • http://vimikog.college-elf.com/uploads/1/3/1/4/131406676/7459252.pdfIn PDF document text
    • http://files.funinstruments1.com/uploads/1/3/1/3/131378990/64d7d20f0c.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/1/0434/5295/6838/files/bodufabudunezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9623/5415/files/asexual_reproduction_in_animals_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8009/5646/files/nidugexabuvamuveworum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2767/7852/files/68465765576.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0575/files/70469447166.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8477/5577/files/google_sheets_count_if_substring.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7122/5502/files/telecharger_baridimob_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7418/9480/files/13720677797.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/political_ontology_colin_hay.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 5

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_off00005cd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CD1 5224 bytes
SHA-256: a3dfa7d082d54e1a875c14ffc42f4402dcbc7bedc0504619b7b984e343141b18
font_01_sfnt_off00006e9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E9A 10584 bytes
SHA-256: 097ebe4fc570b7e4b9dcb7b513cad3089e02f7eadc0d2ce4023a709ebc8736c3
font_02_sfnt_off000092f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92F9 16752 bytes
SHA-256: a05ba7048ff315d7715d81018bb38a0bb415fedf94ebc30031a49e41ba80813b

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