Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f76b77e5ea63465…

MALICIOUS

PDF

36.1 KB Created: 2020-08-19 07:53:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 412652da1d4653a7643c751a8a613484 SHA-1: ef42ad2d183dabdcee42d14db039bb4cbe4859d7 SHA-256: 2f76b77e5ea634651c66ca1258170d5918eb865d676fc2b6d623bac31430b685
194 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links to external PDF files, a technique often used for SEO manipulation or to distribute malicious content. One of these links, 'https://ttraff.com/pify?keyword=guardian+speedy+crossword+answers', is identified as a malicious redirector. The document body contains garbled text and a reference to the malicious URL, suggesting it's part of a lure or obfuscation strategy. No scripts were extracted from this sample.

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.com/pify?keyword=guardian+speedy+crossword+answers In PDF document text
    • http://fumonot.appighosthunts.com/uploads/1/3/1/4/131453284/siporareb-paletoriv-nifefemegerana-xerisibuwefiva.pdfIn PDF document text
    • http://files.carolthoelen.com/uploads/1/3/1/6/131636807/3699016.pdfIn PDF document text
    • http://files.enlaorillathefilm.com/uploads/1/3/1/4/131438071/buvenubarod.pdfIn PDF document text
    • http://files.sammyspetfoods.com/uploads/1/3/1/3/131380641/vevizuvonutuvimopebo.pdfIn PDF document text
    • http://maxegale.amistadschool.org/uploads/1/3/1/8/131856333/futituzawukukunizo.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/1/0437/0225/5770/files/zapokosufozilug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1478/1085/files/slope_intercept_form_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5897/7178/files/bearing_catalogue_skf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6055/2085/files/12428705126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5762/6792/files/ganiwukidezedazodo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5317/9289/files/80594504140.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1384/0793/files/91299693668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0113/3731/files/fumudikaxoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8489/0790/files/vajurejiroxapoli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9720/1576/files/genetics_by_gardner_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5077/9295/files/88235143913.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 2

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_off00004e72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E72 5260 bytes
SHA-256: acaf620d8d429aead8f24170e129d7f6746881d49f0a1c2a2edc018c3d3c2602
font_01_sfnt_off00006081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6081 10276 bytes
SHA-256: 75d3af9545490fd55c954d4339b17f336c40c4dbfd1d02761faf48721c597a8c

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