Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bc0ac050b4ce2a8…

MALICIOUS

PDF

53.6 KB Created: 2020-08-10 18:09:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8e1d9b5518bd654050208261f7f9f563 SHA-1: c15e865af7238a9281fff75311ac0a292536ef32 SHA-256: 2bc0ac050b4ce2a88434fb9cd1358c3b5d13c0431faacb4e37de2f4c8590af00
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one pointing to a known malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a tactic to manipulate search engine results or distribute further malicious content. The presence of the URL 'https://ttraff.com/pify?keyword=mala+absorcion+intestinal+pdf' strongly suggests a malicious redirection attempt.

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=mala+absorcion+intestinal+pdf In PDF document text
    • http://files.jimbrantleyrealty.com/uploads/1/3/2/6/132696104/gosaledodezopikefutu.pdfIn PDF document text
    • http://files.mayusaeki.com/uploads/1/3/0/8/130873880/a31fee30b.pdfIn PDF document text
    • http://tazimojo.vasanthivanniasingham.com/uploads/1/3/0/8/130814297/7038913.pdfIn PDF document text
    • http://files.ametkorca.com/uploads/1/3/0/8/130814297/tanuxanunek.pdfIn PDF document text
    • http://files.greatestpearlwithin.com/uploads/1/3/1/6/131606730/mojop.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/1/0437/6012/4065/files/41937545979.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4344/5141/files/29242212026.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9018/2304/files/fajebedewavevodovalu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4125/1747/files/manual_of_emergency_airway_management_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/49478271366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1715/0368/files/84708610822.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5733/9816/files/anemia_in_pregnancy_malaysia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/mogadinorawisaxabiguj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5129/3603/files/citizen_blue_angels_watch_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6617/1297/files/20087392473.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6200/0806/files/tesda_bookkeeping_reviewer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/sijasa.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 8

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_off00009475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9475 5292 bytes
SHA-256: 90b47894bef92d373ab405e529772da4cbf9095dbe820fdd4a0689ba3b693e91
font_01_sfnt_off0000a67a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA67A 10520 bytes
SHA-256: 7379953c9251f8455613acf1313a0c46b3029f16307e8dbecd8eb22d06c55be1

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