Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c7d2bf4fafd74e5…

MALICIOUS

PDF

36.5 KB Created: 2020-08-19 10:16:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dcd7a775c20dbddb880d40d9f01d10bd SHA-1: c2279039851d59327b9a06f0c1f66142d47945c2 SHA-256: 7c7d2bf4fafd74e5435cb10e4f2dd74f03f57b6463911ddce013242b05ffa53e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains numerous links designed to appear as a download for a movie soundtrack remix, but they lead to a redirector service. The primary malicious link identified is https://ttraff.ru/pify?keyword=kathi+movie+bgm+remix, which is associated with known malicious redirector infrastructure. The document's structure suggests it is part of an SEO link farm intended to lure unsuspecting users into clicking through to potentially malicious or phishing sites.

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=kathi+movie+bgm+remix In PDF document text
    • http://files.craftedcasesnc.com/uploads/1/3/1/4/131453252/78ef3c11ab1da7.pdfIn PDF document text
    • http://files.facepaintingparadise.com/uploads/1/3/1/6/131637240/f9a4a18f5c4a0d.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/1/0428/9835/8432/files/rofan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pazutorigixasozesilax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8711/6965/files/razijisaligebikureserefe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5114/7676/files/samadujosusibajibobetepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/37523006295.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6962/8828/files/zilosudalo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5658/7174/files/kepiviwikotixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8613/5961/files/59839232627.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1007/1448/files/80701425514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/4513/0133/files/23458692832.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3544/3875/files/22226385106.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 8

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_off000050fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50FA 5128 bytes
SHA-256: b9590c7ae09ac2b2d59209d8cfc1a6ffbedf5280b16700628c37d13b0b8ad4f3
font_01_sfnt_off0000625b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x625B 10400 bytes
SHA-256: 736197acfe0a6687350eaca3d2ffcb0448fc62c7e185c1484463934530d37a63

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