Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d4584f1a465939…

MALICIOUS

PDF

87.3 KB Created: 2022-04-07 08:37:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 26ee722854f7b49a8304b2b737ee3eda SHA-1: bea4f2b0bcdb4ea22b2032105415124723381086 SHA-256: c5d4584f1a4659398dfb86018e82ae2ca06272c96c07d090ae18163b4896a4b8
216 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

Heuristics 7

  • 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.
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://lovig.co.za/YmrXLWy8?keyword=why%20were%20the%20middle%20colonies%20more%20diverse PDF link annotation
    • https://zamidagotef.weebly.com/uploads/1/3/1/4/131453459/kizanin.pdfIn PDF document text
    • https://welabelodaset.weebly.com/uploads/1/3/5/3/135399274/8244345.pdfIn PDF document text
    • https://zoveponezewuda.weebly.com/uploads/1/3/0/7/130738822/471b6e3cd1a.pdfIn PDF document text
    • https://ralaxegivasud.weebly.com/uploads/1/3/0/8/130813417/3688750.pdfIn PDF document text
    • http://belean.pl/userfiles/file/25087104662.pdfIn PDF document text
    • http://artecgroupservices.com/imagenes/file/simenukapibufuwob.pdfIn PDF document text
    • https://jovuximunises.weebly.com/uploads/1/3/0/8/130814448/radavemumoxabiz.pdfIn PDF document text
    • https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/f227b1f254efc537c546dae5506c353d/32542228225.pdfIn PDF document text
    • https://encouragingmath.com/wp-content/plugins/super-forms/uploads/php/files/fc96b56d7d2c0a3f5dc092b8aa3484ca/tofijab.pdfIn PDF document text
    • https://nesutidixet.weebly.com/uploads/1/3/4/7/134724555/cf459955.pdfIn PDF document text
    • http://sk4education.com/ckfinder/userfiles/files/mudemezizirulaxifo.pdfIn PDF document text
    • http://studioferrato.it/userfiles/files/rubogojemox.pdfIn PDF document text
    • http://resortcrimea.com/ckfinder/userfiles/files/11589884484.pdfIn PDF document text
    • https://graphicart.ro/fckfiles/file/95071320985.pdfIn PDF document text
    • https://jupelokuxaw.weebly.com/uploads/1/3/4/6/134601506/6bfa3202980a2.pdfIn PDF document text
    • https://afma.pt/site/upload/file/16132142974.pdfIn PDF document text
    • http://cbafjvn.com/uploads/userfiles/file/nikedupogok.pdfIn PDF document text
    • https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/ef79d1080693a5b0e08f9cb6bb10ba26/54051525421.pdfIn PDF document text
    • http://maydemtienvn.com/upload/files/17360452008.pdfIn PDF document text
    • http://egyptfuture-eg.com/public/kcfinder/upload/files/pajib.pdfIn PDF document text
    • http://stylowa-pss.pl/userfiles/file/75949450533.pdfIn PDF document text
    • http://demignyfasol.com/kcfinder/upload/files/govedevesowuvur.pdfIn PDF document text
    • http://dh-cell.com/ckfinder/userfiles/files/nomegoso.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_off0000f135.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF135 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00010947.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10947 17472 bytes
SHA-256: afa5b209871e6ac0622309f797209b1b37cb5dcb2139ba6c1f3a303ed72d0824
font_02_sfnt_off00013719.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13719 10732 bytes
SHA-256: 47212bfd6ced0dee06d5d3bae4652758984ea1673e539511e9667f173afda245