Malicious PDF — malware analysis report

Static analysis result for SHA-256 4de163d2e5b7cf26…

MALICIOUS

PDF

70.0 KB Created: 2022-04-07 17:39:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-04-29
MD5: 88291ee05be4cb2623c440d71800aafa SHA-1: 5622d307e503668d5636f550e03a4136f5f30c14 SHA-256: 4de163d2e5b7cf268a007063287c815e56193e9526f89d0612cd622e11c5f261
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 http://thepssmi.org/kcfinder/upload/files/42455280202.pdf In PDF document text
    • https://mamaganonofob.weebly.com/uploads/1/3/4/6/134602085/5232681.pdfIn PDF document text
    • https://qematalsihha.com/ckfinder/userfiles/files/tunomosasu.pdfIn PDF document text
    • https://vunufagedumuved.weebly.com/uploads/1/3/4/7/134740761/pemewe.pdfIn PDF document text
    • https://dusonutegajob.weebly.com/uploads/1/4/1/2/141251508/2525283.pdfIn PDF document text
    • https://www.ekometal.com/kcfinder/upload/files/21805525947.pdfIn PDF document text
    • https://befinutu.weebly.com/uploads/1/3/5/9/135971501/6561593.pdfIn PDF document text
    • https://wegebumerovoni.weebly.com/uploads/1/3/5/3/135387929/4120b6a853697ce.pdfIn PDF document text
    • https://topas-rus.ru/media-temp/img/uploads/files/52926719609.pdfIn PDF document text
    • https://www.houseofwax.cz/kcfinder/upload/files/wuretara.pdfIn PDF document text
    • https://vilabusifa.weebly.com/uploads/1/3/0/7/130776169/5751717.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/b2b5cf4ddc18717cf9851499866a3a54/21195892966.pdfIn PDF document text
    • https://funogefoxareso.weebly.com/uploads/1/3/4/0/134041001/82154afaf074e3.pdfIn PDF document text
    • http://global-gypsum.com/wp-content/plugins/formcraft/file-upload/server/content/files/1623aa3cdbe1da---ponukezibelanagobud.pdfIn PDF document text
    • http://www.okstatika.cz/kcfinder/upload/files/walosogewotuwu.pdfIn PDF document text
    • http://aow.infogestnet.it/ckfinder/userfiles/files/82518017577.pdfIn PDF document text
    • https://pukogapuwobar.weebly.com/uploads/1/3/4/3/134307851/menoro.pdfIn PDF document text
    • https://cafemocion.com/userfiles/file/39850630924.pdfIn PDF document text
    • https://anitt.in/ckfinder/userfiles/files/84424449881.pdfIn PDF document text
    • https://dubezotamepaloj.weebly.com/uploads/1/3/5/2/135297843/4795721.pdfIn PDF document text
    • http://look.bio/kcfinder/upload/files/82268967757.pdfIn PDF document text
    • https://loheb.co.za/YmrXLWy8?keyword=you%20are%20god%20alone%20lyrics%20and%20chords%20key%20of%20gPDF link annotation
    • http://www.youtube.com/watch?v=PHgTlbXuAgIIn 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 extracted file (font_00_sfnt_off0000ad82.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000ad82.bin)

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ad82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD82 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC599 10944 bytes
SHA-256: 23297345dfd51d8172abe8f7058be84de66a61e76bcd4d87070c31771b0abaf0
font_02_sfnt_off0000dea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEA9 16476 bytes
SHA-256: 819f7b220fe162f637e2a2c0656948f835fd3ff9650a5ad8faed95de2d9158f3