Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0d36272f98f613d…

MALICIOUS

PDF

41.6 KB Created: 2020-08-24 20:53:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cd1ac11ce5bc9e23ed80538039c0d022 SHA-1: c87889c149d67b15f07a3fed7b39d3f00364e21b SHA-256: b0d36272f98f613d7fc1164763c715a3f0c91cad90531b9ef5c4f2c24043a90e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm of numerous PDF files, with the primary link directing to a known malicious redirector. The ML classifier strongly indicated maliciousness. The document body itself is heavily obfuscated but contains the primary malicious URL, suggesting the intent is to redirect the user to malicious content.

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.com/pify?keyword=akhiyan+ne+goli+maar+diya+song In PDF document text
    • http://files.tynksgemstonedesigns.com/uploads/1/3/2/7/132710665/bufonakenebexoge.pdfIn PDF document text
    • http://files.northsideenginecompany.org/uploads/1/3/0/8/130874433/volagiwas-dixoge-zirutazunavi-gefaxi.pdfIn PDF document text
    • http://kozuv.landtoseasurvival.co.uk/uploads/1/3/1/8/131856124/fejogun.pdfIn PDF document text
    • http://files.ashleylarnold.com/uploads/1/3/0/9/130969172/tolamilekopi.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/1/0433/0687/7080/files/tunamowari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4448/2717/files/sheet_metal_cladding_factories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2736/5789/files/92599301906.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7482/7941/files/texapexaxur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0223/2983/files/juwiwile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2408/0282/files/balimapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5195/6894/files/alfabeto_japones_kanji_completo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5122/9089/files/77467997412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6204/2529/files/bevacizumab_side_effects.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off00005029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5029 5396 bytes
SHA-256: b591f1118aa810a8a8ea38fb01c27486ce199dcae8b254b28eaa16ab945df9a8
font_01_sfnt_off00006251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6251 9936 bytes
SHA-256: fad92c447d9a3bd7bff2ff1ec0c1fe02b9d376080991808bfef72aee8e28930a
font_02_sfnt_off00008490.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8490 16168 bytes
SHA-256: 794d8cc090a449e0d460036171b2d5b2c749cb0dc3f17972c44626ada68ee3d8

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