Malicious PDF — malware analysis report

Static analysis result for SHA-256 10d3046b945fd0b5…

MALICIOUS

PDF

42.4 KB Created: 2020-08-17 12:18:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f93e326859027d9375365127dfbe3012 SHA-1: e4efcc9e0e09e1dd0eecde83f4f86e810eb73b50 SHA-256: 10d3046b945fd0b590f974c3caf7737b6bbaf8e2202bb5a6d5a71be6675f4b20
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded links suggest a lure for a phishing campaign, likely disguised as a 'diabetic meal plan' to entice clicks. The ML classifier strongly indicates maliciousness, and the presence of numerous external links points to a link farm strategy.

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=diabetic+meal+plan+sheet In PDF document text
    • http://files.jazoot.com/uploads/1/3/0/7/130776451/3059526.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/1/0435/2638/9912/files/joint_probability_distribution_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4322/5751/files/taketufab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1541/3661/files/63429419793.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7207/8499/files/survey_of_alternative_fuel_vehicles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0645/9029/files/cycle_wala_game_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7692/0220/files/26813523662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5763/5735/files/34065425293.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0904/7717/files/fijiwixebepov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/vusilekoluzevuziritetate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4912/2983/files/dajisodivetax.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 1

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_off00006840.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6840 5216 bytes
SHA-256: a9d53ba1e812aae5ba24e5e2bb24ac3a218c019e741078d1f1a0b34cd1512769
font_01_sfnt_off000079d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79D5 10480 bytes
SHA-256: 01d57b833b685cd6e67f6611d14b7dc9fc350c18103efdf0980f57bf8f15bc36

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