Malicious PDF — malware analysis report

Static analysis result for SHA-256 f445aaed0ffe3935…

MALICIOUS

PDF

43.7 KB Created: 2020-08-23 13:49:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7d990fb57e439612a224fea74a815e9b SHA-1: eb5afdc36c5b71edc34c443216b44a22751e8f35 SHA-256: f445aaed0ffe393564980aef0f7ceab3443042f073926dd30a884651c8847b48
202 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with many links pointing to Shopify domains hosting PDF files. One critical heuristic indicates a malicious redirector link to 'ttraff.cc', which is used to obscure the final destination. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=golf+scorecard+template+xls', suggesting a lure related to a golf scorecard template to entice users to click the malicious link.

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.cc/pify?keyword=golf+scorecard+template+xls In PDF document text
    • http://files.topdogracing.com/uploads/1/3/1/6/131606719/livexed.pdfIn PDF document text
    • http://files.mengkayeducation.com/uploads/1/3/0/7/130739351/nuxudokixoz-vabinazunano.pdfIn PDF document text
    • http://files.daviemactile.com/uploads/1/3/1/4/131436956/d1a157.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/1/0427/7708/4070/files/fugimapanunexam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/51423349002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/fallout_new_vegas_cracked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9869/4042/files/zutewizenududodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1790/3003/files/79066846990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3821/0205/files/vomipin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7351/9272/files/rowuzes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1792/0934/files/82223251700.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8793/7179/files/38616507674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/1296/4772/files/nimozusomebagi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4959/8632/files/gluconato_de_clorhexidina_al_0._12.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6127/2995/files/wuraxojufaxejo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/60716067729.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 6

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_off00006c9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C9E 5400 bytes
SHA-256: 4a7664719427d694e8cee17b62e4d5050f23a18ba1939d950b1f7aeeda60a9a1
font_01_sfnt_off00007ee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EE5 10288 bytes
SHA-256: d36e81306070530d3512472be051d5a34a00839c909f3fd43e9aef3e2feff27d

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