Malicious PDF — malware analysis report

Static analysis result for SHA-256 dee7f21b32c6d99a…

MALICIOUS

PDF

40.5 KB Created: 2020-11-06 15:28:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23
MD5: 2541f67f112da0ff98864d7490f3c509 SHA-1: 740164f3e5d50aea42d164f21eda90a6036d0009 SHA-256: dee7f21b32c6d99a4242e2cc12023d88f77045b1a70522f2068a2358c75a251b
76 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://trafftec.ru/123?keyword=picture+of+cartoon+goat PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393029/normal_5f92314c671c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369153/normal_5f88cfd7d406c.pdfIn PDF document text
    • https://nepuvaduwixoki.weebly.com/uploads/1/3/4/5/134525355/wopagipa.pdfIn PDF document text
    • https://lokixesope.weebly.com/uploads/1/3/1/6/131607163/856739.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5f89bd4832438.pdfIn PDF document text
    • https://viweposedijul.weebly.com/uploads/1/3/1/0/131070314/9a0c341.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449604/normal_5f9f423039907.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/leguvefu/32808007594.pdfIn PDF document text
    • https://s3.amazonaws.com/memul/abhinay_sharma_maths_book_free_download_in_hindi.pdfIn PDF document text
    • https://s3.amazonaws.com/xisakazelelinim/vikipuram.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/the_wolves_by_sarah_delappe.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000610f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x610F 4840 bytes
SHA-256: bacb4a52264c5ddc6b07826271992329906eb102a85d679afbea35dbe14ec4a0
font_01_sfnt_off0000719c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x719C 10656 bytes
SHA-256: 5cc14be45437d6cc34bdb60359792f8feabf3d82ea29aa8236c7031bced04bd3

Open this report in the interactive analyzer, or submit your own file for analysis.