Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a9f372d544cdb24…

MALICIOUS

PDF

134.1 KB Created: 2020-08-19 13:31:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 30af436aa5b6761cdb8d19f4edba7e57 SHA-1: 78f17b2c0a84843957e840d5abfc97317fc4d03e SHA-256: 7a9f372d544cdb24efebe582ba813ff30cc0829908beaf45bd284a3d5dd8845d
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirector links and an SEO link farm, aiming to trick users into downloading further content. The primary malicious URL identified is https://ttraff.ru/pify?keyword=android+17+and+18+tournament+of+power, which is used in conjunction with a lure related to a popular anime tournament to entice clicks. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=android+17+and+18+tournament+of+power In PDF document text
    • http://nazimete.arizonadpsrp.org/uploads/1/3/2/3/132303195/7df4ea5f1a3.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/1/0430/5698/8311/files/kiwixuxorazipapapof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/raxobesemafo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1393/9110/files/bejugubokeneb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7039/files/sarujul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1574/0314/files/91989729090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1560/2337/files/28903225682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1162/1543/files/lovageme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6413/8651/files/cake_by_the_ocean_line_dance.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2121/2570/files/zagapanazidibunuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6709/7756/files/quantum_chemistry_2nd_edition_mcquarrie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/2721/2957/files/66020135832.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001c112.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1C112 5664 bytes
SHA-256: eef3d91a51632df644fc3bbd86a8de47f445951d0c8b0ca21749abb44019de25
font_01_sfnt_off0001d4a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D4A8 5384 bytes
SHA-256: 901a9e7ff15afcd959ecea287c098b4c60dd0398df72aada58ceb90db06eec83
font_02_sfnt_off0001e701.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E701 10308 bytes
SHA-256: 631bd4aae54e860b527ddbc3ec0c26b7bb2ea70e1923e1aa3d4d0361315151e1

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