Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f5d01cb6c793f00…

MALICIOUS

PDF

41.1 KB Created: 2020-08-12 12:22:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6a111ebf14bdddc1a0dc7adab91557cf SHA-1: 293a04f50a7de5c9d1eccac21ca5b028f87b05e8 SHA-256: 9f5d01cb6c793f00b506c5810e59c95069e8f2da29501e006acc8c511b081829
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with a primary malicious redirector link to 'https://ttraff.ru/pify?keyword=autonomous+vehicles+research+pdf'. This indicates the document is designed to lure users to a potentially harmful website. The document body itself is heavily obfuscated and contains embedded URLs, further supporting the malicious intent. No scripts were extracted from this sample.

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=autonomous+vehicles+research+pdf In PDF document text
    • http://files.denniscosta.com/uploads/1/3/1/8/131856158/rifarixo.pdfIn PDF document text
    • http://files.elenatziollo.com/uploads/1/3/1/1/131163599/nobejurun-xagupabubep-nizofuxekabu-dutomokizeraxot.pdfIn PDF document text
    • http://files.longgame.co.uk/uploads/1/3/1/6/131636808/bugebufefu-fobanavawezap-guzobudujazow-zupizusaxel.pdfIn PDF document text
    • http://files.cortneydenman.com/uploads/1/3/0/8/130874633/1642195.pdfIn PDF document text
    • http://jutodiwof.bodilycharm.com/uploads/1/3/1/1/131164250/8516140.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/1/0435/7432/9499/files/elizabeth_bathory_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9785/8972/files/aretha_franklin_funeral_program_booklet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6577/6030/files/75101571048.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/xawipowezaxejezosibalitew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6265/7177/files/alain_touraine_biografia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2549/0332/files/taxusuxu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8426/6137/files/fatelu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5625/0525/files/vususo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3293/6605/files/42975477308.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kuvesagapixunijibofalase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3706/4348/files/3519760339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4117/7248/files/square_root_algorithm.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_off000062e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62E4 5444 bytes
SHA-256: 4dca6793d147f09c5043b8c88cbd6ed13f1faa9072c77a1c4522ed5993682d59
font_01_sfnt_off0000753d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753D 10104 bytes
SHA-256: aabc7258ee5ffac2209e7ec01ccba14abf7f6ecc1067a238b3be20a76ec56922

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