Malicious PDF — malware analysis report

Static analysis result for SHA-256 b17fc771ecd8836b…

MALICIOUS

PDF

75.2 KB Created: 2020-07-26 02:47:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: da491e29c489c334cd81bd9dfa1c5719 SHA-1: 9a5d6f8c213ce36296dbee3b2260be3cc344da8d SHA-256: b17fc771ecd8836b5c2f4ce63f6551e41afb628a3745696ebd84216970cfb7f7
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains heuristics indicating it is a malicious redirector and uses a payment lure. It embeds multiple external links, one of which points to a known malicious redirector at 'ttraff.ru'. The document body, though heavily obfuscated, contains text related to 'Dunkin brands group annual report', likely a lure to entice users to click the embedded malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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=dunkin+brands+group+annual+report In PDF document text
    • http://files.artisticimprintsapparel.com/uploads/1/3/1/6/131606690/xejoborafaji_falokifafitot_fizoxerilaxage.pdfIn PDF document text
    • http://files.theellarosegallery.com/uploads/1/3/1/1/131164114/xifomikajudig.pdfIn PDF document text
    • http://files.chemeketaesol.org/uploads/1/3/0/8/130814926/768363.pdfIn PDF document text
    • http://files.sarahreneeinc.com/uploads/1/3/2/7/132710717/8348342.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/1/0437/6346/6391/files/44197156369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2350/6336/files/sagefewupopat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/ninogapetadenururaxesezux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3607/3366/files/zitadakukoliravi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3237/8517/files/povesaxex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jikoleluvotejagumali.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/84016123499.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9820/1502/files/95867780688.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tovovowegafakaroseras.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5865/8454/files/midapatidiniwowuperolenod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3866/2053/files/kuvorubopinutevul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/87314562451.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 5

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_off0000df0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF0B 5212 bytes
SHA-256: 72eb66bd96ab2be42ce957df41cca958517396ca37e8fad4a4cf3adfcc56e4aa
font_01_sfnt_off0000f0c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C8 14968 bytes
SHA-256: 335998b5c530631986177afbb3392bb94dc01badb406b55eb2b460d8179b5b0e

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