Malicious PDF — malware analysis report

Static analysis result for SHA-256 9daebdf10307d8b1…

MALICIOUS

PDF

68.8 KB Created: 2020-08-09 19:52:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5bd62703dcda3c15017620b36f532aef SHA-1: 3d4a070917f0c4f0dea6a02a4ea4756962830b99 SHA-256: 9daebdf10307d8b154ddf412ce084e75fa2c985c061d0d8069ec31f2923c8f1e
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains the same URL and appears to be a lure for a PDF related to 'Libros de mijail bakunin pdf'. The PDF also contains a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to increase visibility.

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=libros+de+mijail+bakunin+pdf In PDF document text
    • http://girabone.geldmeierfenceanddeck.com/uploads/1/3/2/8/132814930/df87956e55e0.pdfIn PDF document text
    • http://dogedo.msvelascoslaboratory.com/uploads/1/3/1/3/131384401/rikulegewu_gepus.pdfIn PDF document text
    • http://files.charmedimsure.com.au/uploads/1/3/1/4/131483067/zamiwumopebate_matipulotilaxo_zobakifejufofi_lobovuledufap.pdfIn PDF document text
    • http://files.davidhahnonline.com/uploads/1/3/1/1/131164067/rasizufen.pdfIn PDF document text
    • http://tuzuwene.summerslamhockey.com/uploads/1/3/0/8/130814017/4517690.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/1/0429/6966/1589/files/valazixogigoguzaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6517/2387/files/25632941537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3816/1561/files/sibezubivogunozojodupafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2172/2015/files/65037592424.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2029/5064/files/25476853319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6195/9069/files/19100731064.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1898/3323/files/food_truck_business_plan_deutsch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3707/2280/files/91406589909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2025/4375/files/wewifokebitow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1657/6424/files/xesubadad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4188/0224/files/properties_of_composite_materials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0371/5489/files/28953600756.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1087/4777/files/worexupur.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 4

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_off0000ceb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB4 5408 bytes
SHA-256: f805bc398ce2ddc243ad374c3a5e4e25335960f9af0e19774eac0fdcfebed1ae
font_01_sfnt_off0000e100.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE100 10596 bytes
SHA-256: 857cc35c9ec901a8a2754fc4e220623265b64d3f1f47ed5d840ecdc85797b260

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