Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda471ed6a83c34d…

MALICIOUS

PDF

47.5 KB Created: 2020-08-08 08:52:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 883ff18f7df5babaaa5e6ab07d105c26 SHA-1: f714da3e4df4bd121fcd2bcf3f25e0380417517f SHA-256: fda471ed6a83c34df4d38a2caf940d3f1bb74e3dca6d01e816f725b1006738b4
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.ru/pify?keyword=negro+national+anthem+lyrics+pdf'. This URL is presented within the document body, disguised as a search result. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm designed to attract traffic and potentially distribute further malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via a deceptive link.

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.ru/pify?keyword=negro+national+anthem+lyrics+pdf In PDF document text
    • http://files.meredithroadrep.com/uploads/1/3/0/7/130740586/foxunasibeja_soxoj.pdfIn PDF document text
    • http://files.hannahsfitnessandtraining.com/uploads/1/3/1/8/131856034/suweli.pdfIn PDF document text
    • http://fegodil.msportsix.com/uploads/1/3/2/6/132682883/nugimexuj.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/1/0427/7056/3239/files/senanipipabapamabup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3377/9611/files/berliner_platz_3_neu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0515/5227/files/vocabulary_games_and_activities_for_teachers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2677/6227/files/88349685786.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6516/3422/files/66495315818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0445/9168/files/79518182435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3525/4171/files/sevadaxudezobujaxo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4546/1909/files/cookie_clicker_grandma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9812/1119/files/givoxasigovulidis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2280/3363/files/21740593763.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6345/9486/files/tudoxupekawejevakilu.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 5

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_off00007a4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4A 5640 bytes
SHA-256: 1ba834a5d506670d96897a077268cce75f8ff0a9196d52c0855dc3795c96770b
font_01_sfnt_off00008d63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D63 10376 bytes
SHA-256: e93b7e8e506f9da1448818950a3f99da2f511fa094d3fe3a164a56d6354ba793

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