Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c0ade9b9b33cc1a…

MALICIOUS

PDF

37.9 KB Created: 2020-08-02 02:15:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0d9d1c43fd812a6448c0f818dc14833e SHA-1: 8440b132b5c54f20d0d9bd965af8f10b50a8349c SHA-256: 7c0ade9b9b33cc1a84db26a72445d0bc1a375bd8f882716f5786e6224b68cc4c
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a primary URL pointing to a known malicious redirector. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload or conduct phishing. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to game search engines for visibility.

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=vijay+tv+serials+promo+this+week In PDF document text
    • http://files.schematherapycanberra.com.au/uploads/1/3/1/3/131383771/76303e.pdfIn PDF document text
    • http://files.en.hancbass-greaterswiss.com/uploads/1/3/1/6/131636625/1248662.pdfIn PDF document text
    • http://files.worklinkvas.com/uploads/1/3/1/4/131406075/8812986.pdfIn PDF document text
    • http://files.mieswholesalemeats.com/uploads/1/3/0/7/130739415/97bf9ed13682.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0720/3739/files/87815177030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9703/7730/files/66175486825.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/totavari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/90843315794.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5866/7430/files/40678325510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1559/files/16589862839.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6104/3605/files/tixafiwiriza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8998/4674/files/35690786909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9906/2421/files/sesupixovarilimumitenak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3151/7605/files/sununutozoxonamotezefukev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/gadorotom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5557/1353/files/rulogepesek.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A2F 5100 bytes
SHA-256: 4a37456300ee88a566cb04b1666f1501e329fe4367c85f0b2b0c90c6a3bc4898
font_01_sfnt_off00005ba2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA2 9696 bytes
SHA-256: b4219fa856a139bddb353f30033f995e80ff8ccaa45c67e01b2c5d5495d41986
font_02_sfnt_off00007cbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7CBC 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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