Malicious PDF — malware analysis report

Static analysis result for SHA-256 0707c0a00fc91904…

MALICIOUS

PDF

41.0 KB Created: 2020-08-23 10:50:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42faa8674295c9d9478d0a3cb2c0efb2 SHA-1: b0a470a3dae1a91abfbe6f7bf4f7942a07bd6072 SHA-256: 0707c0a00fc9190445665d5ce1adce994d62c31936d7f8717541830a3f82841c
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service, suggesting a link farm or phishing lure. The document body includes a URL that leads to a malicious redirector, likely intended to trick the user into downloading a payload or visiting a phishing site. The ML classifier strongly indicated maliciousness, and the presence of redirector links supports a malicious intent.

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=knights+of+valor+trophy+guide In PDF document text
    • http://files.4whitemans.com/uploads/1/3/1/3/131398113/09189.pdfIn PDF document text
    • http://files.dancebykris.com/uploads/1/3/1/6/131606844/dofasizebufun.pdfIn PDF document text
    • http://files.islamiccenteroftennessee.org/uploads/1/3/1/4/131482886/81a455e11e7690.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/1/0433/6500/7509/files/zanoze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2342/3912/files/80645553383.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0927/2990/files/anagramas_de_animales.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/rodezoduwowoliwibetoxufij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5206/files/36938193584.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/5275/7155/files/amman_songs_wapwon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6936/4629/files/human_services_a_student_centered_approach.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2179/4460/files/dynamics_365_outlook_app_user_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0084/7781/files/mawije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8477/5577/files/busujapajagaxijuwine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0056/8736/files/jurezolefapeguvuxigav.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 2

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_off00006348.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6348 5432 bytes
SHA-256: 95170a8c7aa3c6656f8cb47c26c84bcc420fb5e26ae9ac43ae79e11d9823ea45
font_01_sfnt_off000075ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75CE 9884 bytes
SHA-256: d732aa6fc562f1631db8791373ff44d575c59f07d531a4910e0f399864228630

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