Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc4bf9d860f86f9b…

MALICIOUS

PDF

41.2 KB Created: 2020-08-03 00:39:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 46d35373339e38079e036dffbb2dc4a4 SHA-1: 3c08e7b1fef439aa786895dfc1b9a48f471dc715 SHA-256: fc4bf9d860f86f9b12a6a624b271d8cd776cffcf3ffeee2191d4f8d81ff4baca
214 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the malicious payload. The document also features a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The presence of a phone lure further indicates a potential callback phishing or tech-support scam scenario, aiming to trick the user into engaging with malicious actors.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=8+minute+rule+chart In PDF document text
    • http://files.thomasfundraisingllc.com/uploads/1/3/1/4/131453065/3902226.pdfIn PDF document text
    • http://files.fruitporteducationfoundation.com/uploads/1/3/2/7/132711999/d4bc40af1d7e.pdfIn PDF document text
    • http://files.bethanyhomestead.co.uk/uploads/1/3/2/3/132302913/2355731.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/1/0431/8072/0294/files/56370049320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0029/9683/files/67278851324.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0560/7070/files/58948219037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/23158701460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9105/0137/files/73472942915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9292/files/pelinumopabesifoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5598/8387/files/66015077444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7827/7525/files/minecraft_medieval_town.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4975/3507/files/how_to_install_windows_10_on_mac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37394074323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9743/8875/files/ganovaruzivoxite.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 4

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_off00006683.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6683 4960 bytes
SHA-256: 44478ac0f210964b83232705d7857e7b1f2634b5a3eec8867b3bc806ccc269a7
font_01_sfnt_off0000772c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x772C 9804 bytes
SHA-256: 6aadfc84988882537ef4dba9c2b5e74cc7495627719bb8a8bf4adede36722d11

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