Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f2e8307dc86ca35…

MALICIOUS

PDF

55.7 KB Created: 2020-08-14 03:50:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a48d84dfdd86b75ce9a23e3bd4bd1006 SHA-1: e4adf6f8b08410b4a27a0f4c61d095655f9f1ebe SHA-256: 6f2e8307dc86ca350305d81b5f504ffad7c1d4b308451fbd3d70764f908594e1
194 Risk Score

Malware Insights

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

This PDF file contains numerous links designed to create an SEO link farm, with a primary redirector pointing to malicious infrastructure. The document body, though heavily obfuscated, contains the same malicious URL. The ML classifier strongly indicated maliciousness, and the PDF structure suggests it's designed to lure users to a malicious site.

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=sun+planet+gear+mechanism+pdf In PDF document text
    • http://files.kevindexterministry.com/uploads/1/3/0/7/130738554/bipalew-gevedusu-gijufugunat-nedugipifenop.pdfIn PDF document text
    • http://files.traumatotango.com/uploads/1/3/1/3/131384573/7501266.pdfIn PDF document text
    • http://vepefis.healingwiththeta.com/uploads/1/3/2/6/132695375/nebujalovu.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/1/0431/8999/3621/files/side_eye_emote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5346/6271/files/braveheart_soundtrack_james_horner_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2052/5461/files/lufikoweperimipuku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7692/7141/files/dekofelonefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0331/3308/files/dusekomar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5013/9801/files/giloxajazomilavu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0140/5852/files/watch_smallville_online_free_megavideo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2620/9175/files/barron_s_sat_vocabulary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1357/0709/files/sepijurugogivu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5653/7505/files/cfa_level_2_curriculum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7208/5406/files/86360490091.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8748/6358/files/1911563162.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2043/5112/files/44481245930.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

Related samples 2

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000932f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x932F 5672 bytes
SHA-256: bbd6f5ae2a3d46f711627cbc77ed9d4254cfff4ed5b3dfff76251b08512ec473
font_01_sfnt_off0000a644.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA644 13816 bytes
SHA-256: d45b381c820a2fc4b26d168fd6f540da7d367eb1bc3ce859eaf1834fdfdc5367

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