Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d89dd6eca858f8f…

MALICIOUS

PDF

39.7 KB Created: 2020-08-20 16:10:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ba315c6c28c1f1bd09f83039496d24a3 SHA-1: c2eb1c28793c67b2a2e35df9e46dd56d35c316a7 SHA-256: 0d89dd6eca858f8f3899640ba7d1d10f682a0d6727fa7cd7114f3922b4636d5c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm designed to redirect users to malicious infrastructure. The primary redirector URL is https://ttraff.ru/pify?keyword=rational+numbers+worksheet+for+grade+9, which is used to lure victims with a seemingly benign worksheet title. The document's structure and embedded links suggest an attempt to exploit SEO tactics for phishing or malware distribution, likely as a spearphishing attachment.

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=rational+numbers+worksheet+for+grade+9 In PDF document text
    • http://files.hajarswell.org/uploads/1/3/2/6/132682640/fefozuk.pdfIn PDF document text
    • http://vilaf.warandthecanadianexperience.com/uploads/1/3/0/7/130775403/nojekowizaj.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/1/0428/1961/6935/files/81728206186.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vibemegabixowosepabotabux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6705/6029/files/java_certification_sample_questions_and_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9424/5537/files/64258511263.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6332/7385/files/riwefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/8424/7193/files/99966255678.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6223/1201/files/exploring_geology_3rd_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9803/8679/files/8087752422.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 2

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_off00005ba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA2 5780 bytes
SHA-256: 20828e6b73285d0384b02ff913f4704f5f806e204a8de89d596046303511eaa9
font_01_sfnt_off00006f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F33 10344 bytes
SHA-256: 58ada4a617d9c0c9efa07eca8f3c125085d4ddecb4d0c555a2ad281e45df9d74

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