Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c970cc135fa89b9…

MALICIOUS

PDF

41.1 KB Created: 2020-08-01 15:46:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8ab3d20b998d71642986fedd6cdcfeec SHA-1: e0a004bfdf5fbeb9f761b3aa3d65bf28d69ca40a SHA-256: 4c970cc135fa89b9ff254c7b3cd74569178f51081555a185446bd9fbb22f3b54
194 Risk Score

Malware Insights

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

The PDF was flagged for containing a large number of external links, a technique often used for SEO manipulation or to redirect users to malicious sites. One prominent URL, 'https://ttraff.ru/pify?keyword=introduction+to+analysis+wade+pdf', is identified as a malicious redirector. The document body itself is largely unreadable, but the presence of numerous links, including the malicious redirector, strongly suggests a malicious intent related to link distribution and redirection.

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=introduction+to+analysis+wade+pdf In PDF document text
    • http://files.woodpalooza.com/uploads/1/3/0/9/130969459/fijori-rewomibigonog.pdfIn PDF document text
    • http://files.tylerwaynegriffin.com/uploads/1/3/1/4/131454286/5e03f99.pdfIn PDF document text
    • http://files.blackandright.net/uploads/1/3/0/8/130874204/wizafopopi.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/1/0434/0436/1895/files/31251416338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9821/7374/files/muwafabexopowoloralusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3390/9665/files/12989594660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5674/2046/files/1684072469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7395/4204/files/38631964455.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4207/7852/files/togisekiregamebatufux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2609/6036/files/fefige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6327/1833/files/sovaxoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3640/8982/files/25887987963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5064/8223/files/ponazevigifofuroxuxojomit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0885/2117/files/47618244810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5552/1695/files/baripepuxosisipokemifuzeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7066/0508/files/8732643487.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 3

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_off000062ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62EC 5280 bytes
SHA-256: 088a45e41da01559f60fb68fcb91a79f83056f9c3241254360c60d9ff3fb0f06
font_01_sfnt_off00007507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7507 10064 bytes
SHA-256: beeb6a8bad034b10eeb803bdb2e7f85c9a7cccab599e0e568c9466848629bfb4

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