Malicious PDF — malware analysis report

Static analysis result for SHA-256 da51c2b315c0f4d3…

MALICIOUS

PDF

64.9 KB Created: 2020-08-16 00:57:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 32c75e3b6bba938655509431113f39c3 SHA-1: a14431e1e5fd2455bd5ab95ace82b20c3dd78f07 SHA-256: da51c2b315c0f4d3ca76617fd85897582862f9ea122c9f2e51300c1535eba989
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/pify?keyword=adobe+suite+2018'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, including one to 'https://cdn.shopify.com/s/files/1/0430/6750/6845/files/final_fantasy_x-_2_guide.pdf'. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains the malicious URL, suggesting a social engineering lure.

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=adobe+suite+2018 In PDF document text
    • http://files.mobilecarandrvdetail.com/uploads/1/3/1/4/131406082/9401915.pdfIn PDF document text
    • http://lupod.eazicandle.co.uk/uploads/1/3/2/8/132814942/tosikatafo-rikikaselo.pdfIn PDF document text
    • http://files.indiboards.com/uploads/1/3/1/6/131606672/abc268f2ce2a1a4.pdfIn PDF document text
    • http://files.saskiab.com/uploads/1/3/0/7/130740524/b5b8f0.pdfIn PDF document text
    • http://lojufope.camprollinghills.com/uploads/1/3/1/4/131453870/275502.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/1/0430/6750/6845/files/final_fantasy_x-_2_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6855/5415/files/fapinezutikoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7258/5881/files/libro_para_aprender_ingles_desde_cero_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4473/2065/files/nideverixusaburir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4707/4464/files/2004_honda_pilot_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9204/2137/files/1522370535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/zutijofutudujig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8941/8657/files/17332399466.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3995/4856/files/administracion_de_la_cadena_de_suministro_chopra_4ta_edicion.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 3

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_off0000b728.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB728 5128 bytes
SHA-256: d4ff45f111907e3c3f9c97b48e0bdf4147ed5d5a299214308848a1fa5058901b
font_01_sfnt_off0000c8b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8B2 14200 bytes
SHA-256: fbf815a6e6765d851de9b83d67098d555a75ccaac9a882ce18773ff2fb092238

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