Malicious PDF — malware analysis report

Static analysis result for SHA-256 05e400da066068ac…

MALICIOUS

PDF

40.5 KB Created: 2020-09-19 04:12:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b7248b0fcdce7eeb8364ce6a1c518dd SHA-1: 4a4bd1933a2b87c0cfdb4ea4db81754a0e4d51e3 SHA-256: 05e400da066068ac19ddc4fe42e694b0bc4bca3dc882ab18f5b0d9cc8d936a27
202 Risk Score

Malware Insights

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

The PDF contains multiple links to SEO redirectors, including one that prompts a download for 'ufc apk offline'. The ML classifier strongly indicated maliciousness, and the presence of a download button lure reinforces the phishing attempt. The document body text, though heavily obfuscated, contains the primary redirector URL and several other PDF links, suggesting a link farm designed to funnel users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.me/wix?keyword=download+ufc+apk+offline In PDF document text
    • http://vajagupe.lovellluxurytravel.com/uploads/1/3/1/4/131453943/lexexudezugaw.pdfIn PDF document text
    • http://files.wingsofmercyart.com/uploads/1/3/1/0/131070231/1ce630ae6bc8ad1.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/1/0428/9835/8432/files/85755015361.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7880/1822/files/northville_central_school_website.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7848/6933/files/cardiopatia_isquemica_elsevier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5667/6507/files/bugidamutipape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8266/1526/files/kodusosevipovinewire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93515438816.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3998/0711/files/47428485454.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4991/7333/files/vasij.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 2

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_off0000612c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x612C 5032 bytes
SHA-256: 9b09d891f9d8e8b061ba2885c532359865e000588df940a054510e2cdd790faa
font_01_sfnt_off00007285.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7285 10364 bytes
SHA-256: a55ec11bd91bca58496385edd511b6cf768bdb0ae50391a2c81801d0909515a7

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