Malicious PDF — malware analysis report

Static analysis result for SHA-256 16c40147967c8f8a…

MALICIOUS

PDF

40.5 KB Created: 2020-08-25 01:38:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ac082a10e1d2f5e241ab746cb461f461 SHA-1: dd46bd2d23fb7adea1b748d0961af72bcfd9a917 SHA-256: 16c40147967c8f8a3cc98a86ce98734ed58e790f53c09c6cb5bba26c217925b8
194 Risk Score

Malware Insights

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

This PDF document contains numerous links designed to appear as legitimate downloads, but they redirect to malicious infrastructure. The primary redirector URL is https://ttraff.cc/pify?keyword=free+medical+design+templates+for+powerpoint, which is flagged as malicious. The document's structure and embedded links suggest a phishing or scam attempt to redirect users to potentially harmful 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=free+medical+design+templates+for+powerpoint In PDF document text
    • http://gapoto.redwood4h.org/uploads/1/3/0/9/130969525/nanuva_xofol_zurobuxelupete_jodidabitito.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/1/0440/6516/1366/files/pawefizogogamit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2099/9064/files/xebawafarixofa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9548/1754/files/6786121209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6126/5062/files/wegamakopidugoxogove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7035/6637/files/63577310389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8520/1561/files/35857081388.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7314/2933/files/translucent_plexiglass_sheets.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4183/3635/files/5201970.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0047/0438/files/paiya_tamil_movie_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2691/5239/files/96186388809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0894/9402/files/java_call_method.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2159/6834/files/mega_douser_gungeon.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_off00006011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6011 5520 bytes
SHA-256: 082adccf3cb081930fe5d3277cbc8263b5563420b19be508035a25482170dab9
font_01_sfnt_off000072ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72CE 10108 bytes
SHA-256: f59877d116591b5ef5e53bed52d2aa1c951c33018c26e8a22ff7e154b22a7a8a

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