Malicious PDF — malware analysis report

Static analysis result for SHA-256 445ecc6fac32db2b…

MALICIOUS

PDF

59.1 KB Created: 2020-11-02 00:52:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-10
MD5: 03f437b0b3cd756e59cc4c69435c2b94 SHA-1: fab9db2ccb60d84249b27271883b95807c0fe85e SHA-256: 445ecc6fac32db2b835dd00308ce8791b527a552f2d1485d4e423f6f7e708a4d
194 Risk Score

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://ggtraff.ru/wb?keyword=manual%20for%20jensen%20awm970 In PDF document text
    • https://nosadipopone.weebly.com/uploads/1/3/4/4/134470180/2446265.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0483/8129/6791/files/lupew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6267/3054/files/james_irwin_charter_middle_school_dress_code.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8434/0118/files/korozebewevalages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/6924/1010/files/woodville_high_school_ohio.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0281/4876/files/50734507892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/5647/8370/files/newman_carranzas_clinical_periodontology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7928/5915/files/mumatujolavolineko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6306/files/disdetta_fastweb_sky.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/5140/0391/files/ridewive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0498/7456/7329/files/pufevenapudodenevekox.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008d73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D73 3500 bytes
SHA-256: 2b00180a75a918d415057a44ec35a19e3d1d4b8b90ade4a2665b68e2e46700ee
font_01_sfnt_off000099db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99DB 5220 bytes
SHA-256: 7611b6e129e6a2b029b50b5417da71d462e009ebdb5ceae7c5ab11b293c1f309
font_02_sfnt_off0000ab9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB9A 11148 bytes
SHA-256: 48cfa22c11e7e938144f1866dcc0cc9bb5c8b50a966c50402b08f61b0256e31e
font_03_sfnt_off0000d13c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD13C 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361