Malicious PDF — malware analysis report

Static analysis result for SHA-256 af2d15121b5de6df…

MALICIOUS

PDF

97.0 KB Created: 2022-04-16 21:53:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21
MD5: d824bbffdb33b50a58849b063c9ec665 SHA-1: a46ad175e218d2832330373f2dffe125786bcaea SHA-256: af2d15121b5de6dfacb70032fff9a4c60f1ecd1a29a0bfaea29a611a2a85b1d8
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://yubit.co.za/YmrXLWy8?keyword=verbos%20irregulares%20en%20ingles%20y%20espa%C3%B1ol%20en%20presente%20y%20pasado%20pdf PDF link annotation
    • https://vasukopedu.weebly.com/uploads/1/3/4/7/134709477/vafar.pdfIn PDF document text
    • https://vanaguneselo.weebly.com/uploads/1/3/5/3/135341402/e1a497.pdfIn PDF document text
    • https://sogovowezop.weebly.com/uploads/1/3/4/3/134324678/masexorowezivegamo.pdfIn PDF document text
    • https://sefuzogesosemo.weebly.com/uploads/1/3/4/5/134579576/26fe22.pdfIn PDF document text
    • https://munukule.weebly.com/uploads/1/4/1/2/141219832/ginobajan.pdfIn PDF document text
    • http://atmosfera.uznature.uz/userfiles/file/soxafapefudekamuwuwaper.pdfIn PDF document text
    • http://kartelabasligi.com/images_upload/files/nujufuxilupifojoxezejeto.pdfIn PDF document text
    • http://habitat3.eu/userfiles/files/ruwumidegurub.pdfIn PDF document text
    • https://www.adira.co.id/assets/kcfinder/upload/files/80810786258.pdfIn PDF document text
    • https://zipexozinapewew.weebly.com/uploads/1/3/4/3/134339437/tawuviko_dorekufeza_zorix_volilisodonibeb.pdfIn PDF document text
    • https://kikokemez.weebly.com/uploads/1/3/5/3/135331375/63239.pdfIn PDF document text
    • http://jumpinfit.it/userfiles/files/xogilutul.pdfIn PDF document text
    • http://africalegal.nl/userfiles/file/55655009158.pdfIn PDF document text
    • http://ngocvietbungalow.com/upload/files/gabizodef.pdfIn PDF document text
    • https://kitorulefif.weebly.com/uploads/1/3/4/3/134331375/buvefir.pdfIn PDF document text
    • https://kisedekij.weebly.com/uploads/1/4/1/3/141340648/3db91c0a634078.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EE6 11204 bytes
SHA-256: 98c6dc8e1affa0cc47595a065d26245e88f1f6584d023cc84fbf77290d81a76e
font_01_sfnt_off000128a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128A1 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000140b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140B3 19736 bytes
SHA-256: 4c8e56953f2e672c3afccf7005ee09d83e3eaf5fdba4af1b58972c1511a1d462

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