Malicious PDF — malware analysis report

Static analysis result for SHA-256 e04f329f51a54e8f…

MALICIOUS

PDF

42.9 KB Created: 2020-08-11 20:26:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e64a17e79736fcd5865051f64849fd5f SHA-1: 29cf6d1ae5f8b4b89d56fc9f831e31141a454af0 SHA-256: e04f329f51a54e8fd171defbb79b372ba425d9617809c64b8930c5aeeda63341
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically to 'ttraff.ru'. The document body, though partially obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=best+books+for+c+programming+beginners+pdf', indicating a lure related to programming books. The presence of numerous links to Shopify-hosted PDFs, while many are benign, suggests a tactic to improve search engine ranking for 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.ru/pify?keyword=best+books+for+c+programming+beginners+pdf In PDF document text
    • http://files.mamawellacu.com/uploads/1/3/1/3/131378776/1662972.pdfIn PDF document text
    • http://files.blairstownpubliclibrary.com/uploads/1/3/1/8/131858661/lesusupodowite.pdfIn PDF document text
    • http://files.csuwritingproject.net/uploads/1/3/1/8/131856602/leravitaf.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/1/0447/3936/2970/files/antecedentes_de_la_policia_en_mexico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1993/4628/files/types_of_occupational_health_hazards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0547/7023/files/anansi_and_the_talking_watermelon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6418/8312/files/92869206381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/array_in_c_programming_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2401/2696/files/wenegomixira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7433/8454/files/17337060641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0142/9662/files/60639906133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1310/4035/files/mewemafutopibilolovero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4490/4865/files/tolavek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7162/6652/files/pemumerox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4280/6680/files/jukusojosumevibuxul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3587/5745/files/salow.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 6

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_off000066e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66E0 5696 bytes
SHA-256: e4fbb44994f0ac46b455d6c12ee13c3174e20fc7190a0d40099fee2c62f3c6dd
font_01_sfnt_off00007a24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A24 10552 bytes
SHA-256: 1256da95993155b5ed6f094291abe7bd6b0a7e0378818ec27489f26ffef304cc

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