Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dca44b294713480…

MALICIOUS

PDF

50.0 KB Created: 2020-10-06 18:52:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-30
MD5: 7d40111e28f6bf01f0b469f60d776f16 SHA-1: 1039a4b25e88069bee16219a269306588b0be2b2 SHA-256: 1dca44b294713480448b84e8fbffc0b6a2b6dd103357d728e6d8128965e3c7bb
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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://ggtraff.ru/strik?keyword=vehicle+blackbox+dvr+user+manual+pdf In PDF document text
    • http://nefavexi.patriciastuartoriginals.com/uploads/1/3/1/3/131379699/kugosiwuneluxe.pdfIn PDF document text
    • http://rujobis.yuichiromoriyama.com/uploads/1/3/0/9/130969139/lurowe.pdfIn PDF document text
    • http://files.gracebibleministries.com/uploads/1/3/1/3/131379706/diporipixiwal.pdfIn PDF document text
    • https://site-1039515.mozfiles.com/files/1039515/wufaxugimiwupinadezixuk.pdfIn PDF document text
    • https://site-1042013.mozfiles.com/files/1042013/debidoridowurisan.pdfIn PDF document text
    • https://site-1037889.mozfiles.com/files/1037889/zupuf.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/1/0435/8130/9083/files/scb_credit_card_pin_number.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0479/2352/7836/files/11592439724.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/2730/3069/files/badevabok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/2729/1048/files/david_walker_appeal_in_four_articles_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/3116/6615/files/15092461358.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008464.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8464 5692 bytes
SHA-256: 0cbb9f34aa6f832963746e0a8991746bf0ff449a3ae0ea410076e94dd309b85d
font_01_sfnt_off0000979d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x979D 10456 bytes
SHA-256: b5b6bdadb35e6db6401f8e4f79d02d8629bb1cfc4d43c1a36a9aafe4f15d66a5