Malicious PDF — malware analysis report

Static analysis result for SHA-256 0968cb779c94c0ad…

MALICIOUS

PDF

40.5 KB Created: 2020-08-07 08:10:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da02ef5762f322b3dcf387c79062377b SHA-1: 74038c26398d04afeae60bcdc28eac97ad60ad33 SHA-256: 0968cb779c94c0ad63b6591d05b90af8c8b44e2a459d14a100ea03d25682857d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, many of which point to redirector infrastructure. One prominent link, 'https://ttraff.ru/pify?keyword=auditoria+financeira+teoria+pr%25C3%25A1tica+pdf', is flagged as malicious and part of an SEO link farm, suggesting a phishing or scam attempt. The document body, though partially corrupted, includes this URL and appears to be a lure for a financial auditing PDF.

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=auditoria+financeira+teoria+pr%25C3%25A1tica+pdf In PDF document text
    • http://gipamata.brendagratton.com/uploads/1/3/2/6/132681670/924688.pdfIn PDF document text
    • http://files.aliceannephotography.com/uploads/1/3/1/4/131407572/8075709.pdfIn PDF document text
    • http://files.harrowphotographer.co.uk/uploads/1/3/0/9/130969999/7542480.pdfIn PDF document text
    • http://files.ourfamilyunion.com/uploads/1/3/1/0/131071137/074e1.pdfIn PDF document text
    • http://files.oregonlumberworks.com/uploads/1/3/0/9/130969553/2143591.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/1/0431/7570/6788/files/sidolifitajixunezevopur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7219/8558/files/48891044250.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7661/6341/files/59802834033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8095/7598/files/fuvotej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2929/1427/files/biohacking_exercise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5350/4917/files/milusetujozetedevo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/85664876489.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1814/1347/files/58543304731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0926/9156/files/batufemivajug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/prince_edward_island_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vuketunaxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2639/8888/files/150608767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/73251547492.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 8

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_off000051ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51EE 5160 bytes
SHA-256: e781b2139c4ae97ded9d1e4125eb705e81c14c24e6c8b60f67525574de3652c6
font_01_sfnt_off00006304.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6304 15848 bytes
SHA-256: d2f7198a530c7d7bcd54c594379f2a06470af8b61fc4e74d53bc8d6e2ce4c5c2

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