Malicious PDF — malware analysis report

Static analysis result for SHA-256 8779eea50010fdb3…

MALICIOUS

PDF

45.2 KB Created: 2020-08-21 19:49:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3756d589aee1b711fa5aa0064ffdadc6 SHA-1: 730fe03916889b563fb171634c20028c6b61fd49 SHA-256: 8779eea50010fdb3f675bbe659faaf6e3cdd62e13aa1ce806ac9c8d94f6d959c
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, including one to a redirector at `https://ttraff.com/pify?keyword=microsoft+excel+2013+exam+questions+and+answers`. The document body, though heavily obfuscated, also contains this URL and other links to PDF files, suggesting a link farm or phishing lure. The presence of embedded URLs and the ML classifier's high confidence score indicate malicious intent, likely related to 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=microsoft+excel+2013+exam+questions+and+answers In PDF document text
    • http://files.makatiprimeproperties.com/uploads/1/3/0/7/130775361/kufege.pdfIn PDF document text
    • http://files.motionxdance.org/uploads/1/3/0/7/130775103/foxerodepev-newagok-wewajutavo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2002/4989/files/babasaheb_ambedkar_in_marathi_information.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9141/0596/files/alfabeto_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fimovubonivunab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5706/9736/files/focus_t25_calendar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/94142085244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2398/5828/files/pewuxuvuvifeje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3510/6207/files/fowen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0464/1387/3320/files/6477535874.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0282/8699/files/pdf_viewer_for_google_drive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/45235944591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3813/8783/files/aircraft_design_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2973/2248/files/biometria_ocular.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 4

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63FC 5832 bytes
SHA-256: f4983451f7fc43002823c0eeaa343ee0eb26e6567f131153c7dc5888d2d1943b
font_01_sfnt_off000077c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77C7 9972 bytes
SHA-256: 5b8ece67e1391778b9ff6ca974f4e62dfcc247335d1a1f6edbf845c6c78fa6b7
font_02_sfnt_off000099b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99B1 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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