Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ff38676cd91b94…

MALICIOUS

PDF

41.6 KB Created: 2020-08-26 03:05:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6c88d265f800d34f6ec952bee9155975 SHA-1: 9d029f1a6dfbfc69206dc5816558f00d3378a06b SHA-256: d3ff38676cd91b94257a0e1a21f03db3a599878c2b9435d512b531b7e7ccb1f9
202 Risk Score

Malware Insights

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

The PDF document exhibits characteristics of a link farm, containing numerous external links, with a critical finding indicating a link to a known malicious redirector. The document body, though partially corrupted, contains a reference to the redirector URL. The presence of a visual download button further supports the lure. The primary malicious URL identified is https://ttraff.com/pify?keyword=dragon+ball+z+complete+series+torrent, which likely serves as a gateway to further malicious content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=dragon+ball+z+complete+series+torrent In PDF document text
    • http://tuveguk.upscaleresale4kids.com/uploads/1/3/2/8/132814930/leligujozix.pdfIn PDF document text
    • http://files.harrisburghigh.org/uploads/1/3/1/0/131070888/4399537.pdfIn PDF document text
    • http://bukoper.gurugarammasala.com/uploads/1/3/0/7/130740609/5005090.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/1/0454/0589/6872/files/posizigamef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5803/6889/files/56548490550.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/79690565191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4197/2646/files/cause_and_effect_of_teenage_pregnancy_in_the_philippines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2308/1378/files/affine_geometry_textbook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1451/9966/files/34774554554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7140/5222/files/musico_abandonado_ferido_e_esquecido.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/47823996985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1538/0892/files/tatalaksana_asidosis_respiratorik.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_off00005bad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAD 5444 bytes
SHA-256: 40a3083c9a26d93693d5b7476a9e81637199d957c9719b015ca2981f5af05b1e
font_01_sfnt_off00006e1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E1C 13900 bytes
SHA-256: cf8d2a991f73efb5c6324277160102c6cbe557827df3c2928c7066011b44dae5

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