Malicious PDF — malware analysis report

Static analysis result for SHA-256 5780851f799cf42d…

MALICIOUS

PDF

41.7 KB Created: 2020-08-06 10:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 650a070db81a15b5229e23779a919d80 SHA-1: bbb291360bee8a28ec7abfc7385fc12e8e4543c9 SHA-256: 5780851f799cf42d4ec31a6e217289ce767e7f68c3606578763f34c7ddcbcc3e
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a malicious redirector URL, indicating a phishing or scam attempt. The primary malicious URL is https://ttraff.com/pify?keyword=upsc+public+administration+syllabus+pdf+2020, which is designed to lure users into clicking. The document body, though heavily obfuscated, contains references to the syllabus and the PDF creation tool, suggesting a deceptive 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.com/pify?keyword=upsc+public+administration+syllabus+pdf+2020 In PDF document text
    • http://files.aecdubai.net/uploads/1/3/1/4/131453633/zigidusafuj-genuge-sudoperoj-redoz.pdfIn PDF document text
    • http://files.isrcincinnati.com/uploads/1/3/0/8/130874180/d0f9a75d47b6ee7.pdfIn PDF document text
    • http://files.alphahomehealthandhospice.com/uploads/1/3/0/8/130814397/tenojaze_gafalevovape_movaribabu_vufaniweneke.pdfIn PDF document text
    • http://files.hakunamatatavrgada.com/uploads/1/3/1/3/131398046/c2629b26.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/1/0435/2681/5903/files/36321965913.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7176/6690/files/1743020417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8776/4387/files/fisiopatologia_del_cancer_de_prostata_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4456/9242/files/50816008962.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8380/9447/files/mitch_albom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6966/8517/files/14847843406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4968/0028/files/56500563917.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7709/8910/files/fujoxamame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0288/8351/files/sipuwumidalutirimuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8222/7617/files/xijekewolazewuniz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8959/2473/files/poravajofunura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0600/9255/files/50851747359.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3902/3526/files/tofidotitekonizipudisomon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7237/3411/files/64394836768.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 7

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_off00006430.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6430 5808 bytes
SHA-256: b9ca2002f97606eddcba585257dab9d1c9366cf37fe9363f23d29d9e75a765a9
font_01_sfnt_off000077e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77E7 9900 bytes
SHA-256: 44fb7eddfcc9808c7f5b914cda2642d1dfd54a18391c8201ded31426994c478f

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