Malicious PDF — malware analysis report

Static analysis result for SHA-256 6fd4017bd7434417…

MALICIOUS

PDF

35.6 KB Created: 2020-10-29 17:51:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 13d8a9d1e81d39e870f36f30a9eea358 SHA-1: dbd4dc648266a4176a8a40df2d4327e119d0f6dd SHA-256: 6fd4017bd7434417208be9e1f01916db5d510bcc9f1b91167fc9a878466cd313
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://gettraff.ru/strik?keyword=the+tony+danza+show+imdb In PDF document text
    • https://xanodupujariris.weebly.com/uploads/1/3/0/9/130969381/vurikuwabufaz.pdfIn PDF document text
    • https://dubanivexog.weebly.com/uploads/1/3/4/3/134331992/d34bbd7e3438.pdfIn PDF document text
    • https://gewaxuselez.weebly.com/uploads/1/3/4/2/134265722/wizapeg_notamedubami.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/xerewiloxizamatosuwepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/1887/7626/files/92437620305.pdfIn PDF document text
    • https://s3.amazonaws.com/zobuwubedak/61200176393.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/40437855865.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/55d03076-b1a6-425f-8452-912de40f4400/xenapu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6c12c184-9930-44ba-97f0-82f556ac0604/in_which_organelle_does_cellular_respiration_take_place.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_off00004b73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B73 5268 bytes
SHA-256: edc4d9a1cafd97eb61c571100157de0337a08cd54b8a90d833e8f1213f0159de
font_01_sfnt_off00005d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D56 10808 bytes
SHA-256: 0f69dbbaab4a28f4d0342032bf9a3bbc5afdbaa782a5a9cbc74910b2107abd8b

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