Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c29d490d45f093c…

MALICIOUS

PDF

46.6 KB Created: 2020-08-15 22:40:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 907f427c33b93470807a3405e3c50995 SHA-1: 7fddd214701bf9f59a5680f3e2cf5d04c26dc140 SHA-256: 0c29d490d45f093c3c4b1a183ee5149f4a07fceb579d292df016c259d6e84cba
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL and appears to be a lure for a document titled 'El hombre como ser biopsicosocial pdf', suggesting a phishing or scam attempt. The presence of multiple PDF links and a redirector indicates an attempt to lead 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.cc/pify?keyword=el+hombre+como+ser+biopsicosocial+pdf In PDF document text
    • http://dabusu.conservatoryathome.com/uploads/1/3/2/8/132814989/1285634.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/1/0434/1979/5623/files/ways_of_avoiding_plagiarism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1610/0776/files/80317683156.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6427/7657/files/20615788363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89120683065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2218/8701/files/zonosabifid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1691/2037/files/rajeboxepeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9172/9309/files/calvinistas_e_arminianos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2598/7734/files/carl_gustav_jung_el_libro_rojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6952/9509/files/tivixekujutuvajagel.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_off00007575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7575 5492 bytes
SHA-256: b7b57b4b1ab491b7becbc63991f999cb05ce3bdebe1041fc69155ffde94b9b28
font_01_sfnt_off000087f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F0 11112 bytes
SHA-256: 7661b30bda4c988a0b83a34c0c3f06a69ef6f82512898b9cb9418847812a7a08

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