Malicious PDF — malware analysis report

Static analysis result for SHA-256 b09f8df703385ebb…

MALICIOUS

PDF

59.6 KB Created: 2020-08-08 11:21:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5d420b7de721677011221143c75b2acd SHA-1: e019468d06751a0efaf9ba0bcf05f198d7591891 SHA-256: b09f8df703385ebb2ae1e33322d22f439b7b11dd7b492bdc8cf2ded790a98aee
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically flagging it as a malicious redirector. The primary malicious URL identified is 'https://ttraff.ru/pify?keyword=bwv+131+pdf'. This suggests the document's purpose is to redirect the user to potentially harmful content or phishing sites. The presence of numerous links also indicates a potential SEO link farm tactic.

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=bwv+131+pdf In PDF document text
    • http://kotekov.wikigempedia.com/uploads/1/3/1/4/131406202/6326967.pdfIn PDF document text
    • http://files.simicollins.com/uploads/1/3/0/7/130775977/baxanogagiwe_xapexide.pdfIn PDF document text
    • http://files.scarboroughanimalhospital.com/uploads/1/3/1/0/131070493/3665045.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/1/0427/7560/9510/files/purafuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0879/4525/files/62390273616.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5697/2455/files/ganovukutuxanuvilujotewes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3057/6285/files/kovewuwenomizupepomoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8972/9438/files/aggregate_impact_test_is_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1482/2808/files/dynamic_arrays_c.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7274/8709/files/fipidudipeletito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57515970725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0431/1190/files/66025177659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0925/9158/files/bitumen_penetration_test_procedure.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3248/5793/files/half_elf_5e_variant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6779/1765/files/90484628183.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_off000095d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95D5 4936 bytes
SHA-256: 022708cf509c1759f6945260cc0891f029c53dc6bdd6ffc15c4ed9e9573090bb
font_01_sfnt_off0000a6e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6E8 11144 bytes
SHA-256: 084f7ab98d8430774be8bba727748a86d8a6a29a25345e01949ead8789ca278b
font_02_sfnt_off0000cc7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC7D 16120 bytes
SHA-256: 73e2bae015806fcbcea00a5e77fef36cf57312733aebee32ba98308b5ce41d75

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