Malicious PDF — malware analysis report

Static analysis result for SHA-256 233203a4ed4148bc…

MALICIOUS

PDF

72.2 KB Created: 2020-08-23 05:47:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 609c35e24b3237c85c3f456340847bc1 SHA-1: 79b5f048d91ee441c0d9cf29a591d211c32eb0fe SHA-256: 233203a4ed4148bcadde1342ccb9c7c90d7853a69f872f8b39f527376eac909e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a Warhammer 40k codex. It also exhibits characteristics of a link farm, embedding numerous other PDF links, likely for SEO manipulation or to spread malicious content. The document body is heavily obfuscated and contains the malicious URL, confirming the lure.

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=warhammer+40k+adeptus+custodes+codex+pdf In PDF document text
    • http://jalij.vetiverandsage.com/uploads/1/3/0/7/130775934/zopabisajuwokanemexu.pdfIn PDF document text
    • http://lixefeb.teresasthriftytreasures.com/uploads/1/3/1/4/131405927/1105c50baab62.pdfIn PDF document text
    • http://files.outbackatpostoak.com/uploads/1/3/0/7/130739294/dunidigavad-jobakokiwikipe-didoviwe-pumixer.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/1/0428/1974/7996/files/vrc_avatar_descriptor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4396/1504/files/bitbucket_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7995/7669/files/midewem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/2865/9614/files/nutubovepakerere.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0461/3921/1929/files/48429054648.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3947/2288/files/97284033207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8612/4958/files/biochemistry_notes_for_medical_students.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3028/0352/files/xawalexufedib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2626/7806/files/88560433160.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 7

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_off0000d7ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CE 5736 bytes
SHA-256: d3995603b88eb2cebb81fd599700dc90c45f28432306763f53649a03259b49f2
font_01_sfnt_off0000eb45.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB45 12512 bytes
SHA-256: 9d4224dec225c3bfa6acbd96daa42fdc668301906e7d34f0d1b29357498ccd3d

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