Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3ec20c566226351…

MALICIOUS

PDF

78.2 KB Created: 2021-10-28 20:47:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-20
MD5: 83ab14b505be086048f0e038d7d0b630 SHA-1: f5162f9ecf8ad5556f287b0bef6203b99c762214 SHA-256: d3ec20c5662263514dd55807d2a270da090df8a795b938f956897c60992d7f1c
134 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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 http://087334211.kad.tw/kads/ckfinder/userfiles/files/99280819768.pdf In PDF document text
    • http://ng-sons.com/userfiles/file/7869086367.pdfIn PDF document text
    • http://webs.eusko-ikaskuntza.org/files/galeria/files/moxunazupuxegile.pdfIn PDF document text
    • https://arab-hams.com/Ups/files/32198977907.pdfIn PDF document text
    • https://mklaw.trakhes.com/dir-eg/dalel-eg/userfiles/file/sizijewejatutudenurul.pdfIn PDF document text
    • https://bestcaps99.com/ckfinder/userfiles/files/labizivoveso.pdfIn PDF document text
    • http://bocghedanang.com/media/ftp/file/95692677415.pdfIn PDF document text
    • http://brbud.pl/userfiles/file/32764568722.pdfIn PDF document text
    • https://dusunceokulu.net/resimler/files/93014086212.pdfIn PDF document text
    • https://stdtekstil.com/upload/ckfinder/files/72803736246.pdfIn PDF document text
    • https://isleo.com/i_photos/file/sowabikifukodip.pdfIn PDF document text
    • http://maha.tcnme.com/chop/multimedia/userfiles/file/82926222182.pdfIn PDF document text
    • http://studiotecnicodambra.eu/userfiles/files/tuwibonafit.pdfIn PDF document text
    • http://denge.aero/upload/files/belupumali.pdfIn PDF document text
    • https://swift-tw.com/lcc/upload/files/pajexevelali.pdfIn PDF document text
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16152e79b01d23---88110036631.pdfIn PDF document text
    • http://globomax.eu/userfiles/file/zuroga.pdfIn PDF document text
    • http://talleresjpg.es/img/file/pewevexogafivib.pdfIn PDF document text
    • https://vegas-shop.net/uploads/files/naduvon.pdfIn PDF document text
    • http://mitsubishilongbien.vn/images/ckeditor/files/9990560943.pdfIn PDF document text
    • http://omniatel.it/wp-content/plugins/formcraft/file-upload/server/content/files/1613a178df255f---zabavazobojovugamasenogi.pdfIn PDF document text
    • http://jiuhuapm.com/upfile/file/rikarujesog.pdfIn PDF document text
    • http://feedproxy.google.com/~r/Xvkpad/~3/RhDyTiV0TgQ/uplcv?utm_term=important+questions+of+bst+class+11PDF link annotation
    • 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_off0000d0eb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD0EB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e8fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8FD 15872 bytes
SHA-256: 2ac2e4ec35e3aa6ac689ab410f7889b9e97c65aae4a49d8e86f403d134319f64
font_02_sfnt_off0001115a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1115A 11032 bytes
SHA-256: a7baf2a2e79adc1cbc14d0834a0ad0a6691f7b61dd90ea8f8078e6c488e05db2

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