Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9c703f7c0fd05a9…

MALICIOUS

PDF

76.2 KB Created: 2020-08-08 03:59:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58b5512b89d04359d66927f5ab5e20a8 SHA-1: 1a56f938305ed41d4c345c0a0e67daa6b5aceb5e SHA-256: c9c703f7c0fd05a951e8d8b919059486bad3f86f1fb69c77b61c0265259e55a4
194 Risk Score

Malware Insights

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

The PDF contains a deceptive document body and a critical heuristic firing for a malicious redirector link. The primary link, 'https://ttraff.cc/wb?keyword=copy%20pdf%20into%20excel%20vba', is identified as malicious and likely leads to further compromise. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external content, suggesting a broad distribution or SEO-poisoning tactic.

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.cc/wb?keyword=copy%20pdf%20into%20excel%20vba In PDF document text
    • http://files.squarepegnation.com/uploads/1/3/1/3/131384306/ripigulowu_xamogeze_xaxajadozudomib.pdfIn PDF document text
    • http://vilopateg.robynabramsmosaics.com/uploads/1/3/2/6/132695615/7395446.pdfIn PDF document text
    • http://files.theallstarsgroup.com/uploads/1/3/0/7/130776037/puxabebotuz.pdfIn PDF document text
    • http://files.mychristianoccasion.com/uploads/1/3/2/7/132711966/bomedu.pdfIn PDF document text
    • http://files.tamimurphy.com/uploads/1/3/1/3/131381078/zibazesarutoj_watozufisema_zigabuzala_bonirot.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/1/0428/6690/1148/files/68057593173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6775/2100/files/femuxotetuxomodop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8835/4207/files/podisejivelepabovovepimub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6485/2634/files/pixosetuwonunu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1562/7175/files/44476192262.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/6263/5168/files/centrales_trmicas_de_ciclo_combinado_teora_y_proyecto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0754/8326/files/pocket_morty_recipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8037/5708/files/83231281410.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5464/5916/files/8010828993.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3671/2861/files/36081284763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5920/6549/files/abu_dhabi_map.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_off0000ec25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC25 5148 bytes
SHA-256: 606f0bb9cf5f7d02dd91a4309e47adedfc744ef2699ae65b5f25fee605677ce4
font_01_sfnt_off0000fdcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFDCD 11192 bytes
SHA-256: ca89dc5d422dd8d2f22c8b9dc3c02046b149af160d2801c3ffdb41331e865683

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