Malicious PDF — malware analysis report

Static analysis result for SHA-256 67a65f40669ca9e1…

MALICIOUS

PDF

64.3 KB Created: 2020-08-14 23:57:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a51d5ef231b24eac9666a1889dd41535 SHA-1: fec44cd6849ad2f08f75ac03b3353185120517f6 SHA-256: 67a65f40669ca9e1acd51599f77150d0e494bffdc39ec7a765e5cb64c513a8c9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a link farm designed to redirect users to malicious content, masquerading as a syllabus. The primary malicious URL identified is https://ttraff.com/pify?keyword=cfa+financial+reporting+and+analysis+syllabus, which is flagged as a malicious redirector. The document's structure and embedded links suggest an attempt to exploit SEO tactics for phishing or malware distribution.

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=cfa+financial+reporting+and+analysis+syllabus In PDF document text
    • http://files.ahhs2020.com/uploads/1/3/1/4/131408930/ce4bd1e0098e.pdfIn PDF document text
    • http://files.adventuregirlsnj.com/uploads/1/3/0/8/130814900/beramusawajar.pdfIn PDF document text
    • http://nelotono.thetechnicolorsheep.com/uploads/1/3/2/6/132682883/lidisukage_nuwagorakupowob_juzafa.pdfIn PDF document text
    • http://files.theallstarsgroup.com/uploads/1/3/0/7/130776037/puxabebotuz.pdfIn PDF document text
    • http://files.cateringbykatherine.com/uploads/1/3/1/1/131163601/fasolaxoxigep.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/1/0435/6934/8763/files/5503674165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2740/6746/files/moonwalker_full_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/lufojixajuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/biludimupamimajuzil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4375/7992/files/blood_on_the_moon_the_assassination_of_abraham_lincoln.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5180/9942/files/merenexup.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5942/6968/files/american_eagle_return_policy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/1836/7654/files/epigenetic_modification.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6325/4944/files/20535065022.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_off0000bd90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD90 5472 bytes
SHA-256: 4f300ff1b58919e07c3a729d25606d5d438f4b2068daa7f45e8c254824f9675e
font_01_sfnt_off0000d030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD030 10504 bytes
SHA-256: 812d2dd37f87e3f1b77caf196f1f83180a6329c2a9d31c0c63fb7deecc9b646a

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