Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d306736d79bf9ba…

MALICIOUS

PDF

40.1 KB Created: 2020-10-06 11:34:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: dac42021b923b1e92ddae4c096685c0a SHA-1: 1ab9b914846e9f5d56104d735816e0bf0c55d2f1 SHA-256: 0d306736d79bf9ba639cc5a23d6e3aa9323d147082d486fa185bce0a69ca14e7
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/strik?keyword=fordson+super+major+manual+download In PDF document text
    • https://site-1036719.mozfiles.com/files/1036719/68159274285.pdfIn PDF document text
    • http://files.frankruppdesign.com/uploads/1/3/1/6/131606248/dd585.pdfIn PDF document text
    • http://files.mason-harriman.com/uploads/1/3/0/7/130740316/a7ce3b4c9.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://uploads.strikinglycdn.com/files/4d84c9c1-cb2f-4c4c-ab5a-7782fd1e1ab8/dogokomutidazad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/facc6078-af58-4928-8875-16e0386e1247/mozabekevimadi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b3a295c-3905-4d60-9cd0-84ffccef8143/42365513927.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e51c6ca-5461-4e62-8094-b09498cc426e/23784011567.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2663562-b82d-4b51-a5f0-fc7d49edfb1a/58838811368.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a239c59e-0197-4f97-bee1-3a201ac19e04/lelaliniwalufulagijexuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec9d3c36-ba59-4b4e-9744-b0a70bea6af5/59293755755.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004f47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F47 4984 bytes
SHA-256: 57eb489a8b4df2c52bfe9220d9385aa69e863f896d14639155f5960af3b213ad
font_01_sfnt_off0000602d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x602D 11268 bytes
SHA-256: edc2b2b08575aa58bd991162c14dfccc208998702112a308e2893c76162e805c
font_02_sfnt_off0000854e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x854E 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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