Malicious PDF — malware analysis report

Static analysis result for SHA-256 630936969bfa12a8…

MALICIOUS

PDF

53.6 KB Created: 2020-09-19 02:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a6a1fdeb865bfeafa60490cdb174e869 SHA-1: ad6d652f9c263deb6d8ca40cab79ab86a1e51e33 SHA-256: 630936969bfa12a8d7793d5f475e48a089dcc887fd9b74b322e4af8e5a345fea
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.club/wix?keyword=ryujin+jakka+meaning'. This indicates the document is designed to redirect users to malicious infrastructure, likely for phishing or malware delivery. The presence of a large number of external PDF links further supports the SEO link farm tactic, aiming to attract traffic through search engines.

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.club/wix?keyword=ryujin+jakka+meaning In PDF document text
    • http://zegeru.gktfreechurch.com/uploads/1/3/1/6/131637881/6761200.pdfIn PDF document text
    • http://files.theriverrunsthroughus.uk/uploads/1/3/1/4/131437676/mexused.pdfIn PDF document text
    • http://files.dhi-nc.com/uploads/1/3/2/7/132712306/c2ba1c74fb2d.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/1/0437/6428/5601/files/80666781801.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5308/7911/files/xadobeduruxojalevijupozop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0457/6886/8006/files/d-_day_self_guided_tour.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0298/5622/files/batho_pele_principles_in_education.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7090/5756/files/gaval.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6961/1935/files/gunonutetazorop.pdfIn PDF document text
    • https://128a2ce8-92e6-4e0c-9367-b4427dfe68f3.filesusr.com/ugd/18122d_978148d612c549dfbb1eb955f9be544c.pdf?index=trueIn PDF document text
    • https://60349cf0-8a25-46ee-b000-1b8746ef79d3.filesusr.com/ugd/3b47cb_9ea5946a868c437baffe6bf3c5f523ff.pdf?index=trueIn PDF document text
    • https://9bf99913-82a4-4f79-8b3d-b156f47ac23a.filesusr.com/ugd/3f0e57_c14e24cd34344fd18f6b81837dfba188.pdf?index=trueIn PDF document text
    • https://c0957f98-6233-4d1f-a7dd-473f2ea2b733.filesusr.com/ugd/f7fbc8_8965e7f7264b4af58dc56bf2b0f45af8.pdf?index=trueIn 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 6

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_off000065e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E3 12800 bytes
SHA-256: 4d27045bcbec3205ebc3804bdb05a1f053cfca0ae20718f08374cf09333f272e
font_01_sfnt_off00008fb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FB9 4948 bytes
SHA-256: a0e4a4142bcf2fd84f062dc3a0e149d8b66ee45c30ef10ad0226c1de41310f18
font_02_sfnt_off0000a0a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0A1 15048 bytes
SHA-256: 9906959f64bd23d93034fe5aeb60f9e8f451d5ec46c878ea59710b2cd4752a0e

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