Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f5a7c9fa1b8e0f3…

MALICIOUS

PDF

71.7 KB Created: 2020-08-21 21:54:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 414d54a6fd2347881ebaec0d54d5107a SHA-1: 67062b3ba3b87ae9679eb66385b9a39aa7cd2868 SHA-256: 3f5a7c9fa1b8e0f3b0c50cd7939c8a4460e70b5580a03600c9a84b7f22d9b0c1
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating a link to a known malicious redirector. Additionally, PDF_SEO_LINK_FARM indicates a mass external PDF link farm. The primary malicious URL identified is https://ttraff.com/pify?keyword=all+information+about+badminton. The document body, though heavily obfuscated, contains this URL, reinforcing its role as a lure.

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=all+information+about+badminton In PDF document text
    • http://files.leviteministry.com/uploads/1/3/1/3/131381540/sudetubasuful.pdfIn PDF document text
    • http://files.bethelagchurch.net/uploads/1/3/0/9/130969065/b1f17453b83367.pdfIn PDF document text
    • http://files.dancaffreywrites.com/uploads/1/3/1/8/131856627/1998865.pdfIn PDF document text
    • http://files.greatvalleyfarms.com/uploads/1/3/0/9/130969241/dimofimulopoxutekub.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/1/0437/9148/3041/files/56837535514.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6064/8343/files/cells_tissues_organs_and_systems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/2508/4065/files/como_identificar_las_bobinas_de_un_motor_trifasico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/geometric_progression_word_problems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5916/7900/files/27957812692.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0820/4708/files/rubisavexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3557/4943/files/sawivepowazawodutab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1026/8064/files/5168579273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4539/4331/files/fuwezave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/59582145790.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/pac_man_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4865/7311/files/hospital_waste_management_questionnaire.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 7

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_off0000de17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE17 5004 bytes
SHA-256: 284a1524a9cdedd7c4bfd0b79c004046d1723d3e6325f0e6cf9515fedef334d6
font_01_sfnt_off0000eef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF3 10268 bytes
SHA-256: 4010edba1199296419f5022535f1023200bc6626fe47f1aeaec38aa541f1f130

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