Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d51864939b09850…

MALICIOUS

PDF

76.5 KB Created: 2020-11-18 12:33:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-04-11
MD5: 715a5e5c6bfc4e843b420aad498d7249 SHA-1: 418efb985868a1ddef56de6cf53c7815c303bcc6 SHA-256: 0d51864939b0985059279fd0c53f4be097407beff6c4dbdbdb59f96780a652a5
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://vabepazepa.weebly.com/uploads/1/3/4/5/134596671/6276019.pdf In PDF document text
    • https://s3.amazonaws.com/mijedusovineti/86744175761.pdfIn PDF document text
    • https://s3.amazonaws.com/dinigugaxej/blues_music_audio.pdfIn PDF document text
    • https://s3.amazonaws.com/jamokaroxoj/lijozudisejumikam.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383136/normal_5f97af4fe030c.pdfIn PDF document text
    • https://tomojuvugitem.weebly.com/uploads/1/3/4/4/134475437/gadudifabu.pdfIn PDF document text
    • https://s3.amazonaws.com/kijelopazekune/etrian_odyssey_untold_quest_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/commas_semicolons_and_colons_worksheet_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/remuv/be_a_sales_superstar_brian_tracy_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/pharmacology_notes_free_download.pdfIn PDF document text
    • https://trafficel.ru/strik?utm_term=sharp+shadow+hollow+knightPDF link annotation
    • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off0000dea5.bin)
    • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off0000dea5.bin)
    • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off000115db.bin)
    • https://uploads.strikinglycdn.com/files/63dc396d-86db-4f3a-b019-7752e02e7e79/16985427731.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 extracted file (font_00_sfnt_off0000dea5.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dea5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA5 5148 bytes
SHA-256: 55ab24b9653ba28f2d251e2e233c2399c34ae5afe48ff435c350e9f6fe109827
font_01_sfnt_off0000f01e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF01E 11560 bytes
SHA-256: e703396c5d9ef96b159ed1cb8160f7dc82780b40ba64e7e864fbc27e1a768412
font_02_sfnt_off000115db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115DB 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3