Malicious PDF — malware analysis report

Static analysis result for SHA-256 346b1440cca6e283…

MALICIOUS

PDF

69.4 KB Created: 2021-01-20 21:55:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 6af77b5d22e31e270173983841d57de3 SHA-1: f0160eb26b33ff80eb4f7826c7756b0b9dbd5415 SHA-256: 346b1440cca6e283bc62d3375e585278b20ec1f02f19921a35b89933614ca9ff
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://leonvi.ru/123?utm_term=pse+decree+hd+ti+specs PDF link annotation
    • https://cdn.sqhk.co/xetasenuwoji/d3PThbz/ski_safari_adventure_time_apk_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/xubupigegi/jgphhgd/suvomuzubarirop.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4466413/normal_5fb703f8c1858.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4497353/normal_5ff2bba0d9be0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367000/normal_5f87d092dca44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384461/normal_5f9183ed9ebcd.pdfIn PDF document text
    • https://cdn.sqhk.co/xejudawadoni/jgnjaha/wafurifunajibej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420612/normal_5f99c6bca2e4c.pdfIn PDF document text
    • http://ruzazeruduzelu.22web.org/76803853191.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370273/normal_5f8894277be94.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450419/normal_5fe132499698f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469351/normal_5fa5b4763cb0d.pdfIn PDF document text
    • https://cdn.sqhk.co/tomubozes/h4jYhf8/teacher_appreciation_day_ideas_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kalilom.epizy.com/wiwikunexavasokak.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/coraline_full_movie_in_english.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/lagu_brick_by_boring_brick_acoustic.pdfIn PDF document text
    • https://s3.amazonaws.com/kubafezin/good_ppt_presentation_templates.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/bareeze_bridal_bed_sheets.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_off0000d498.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD498 4920 bytes
SHA-256: 15467e901b0b4e7b9ca5f810a501ecc8da7bf07d4dab90faa8f0dcc92fdcba8f
font_01_sfnt_off0000e555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE555 10444 bytes
SHA-256: c7d0f1d7d5804236c6b5358dfb140a0c19d681c0f2d19a7e0d54893f6df90508