Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d8529c7529c1851…

MALICIOUS

PDF

96.7 KB Created: 2021-08-19 17:14:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-18
MD5: 522c6618d55019b69c7636ae83e077d8 SHA-1: e1f045a8cea5c1a537e71a571437c0c49e2bea49 SHA-256: 5d8529c7529c18515ce2025137a496de26cc41e4771e1683f5908b441594521e
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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
  • 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 http://baanpowertrain.com/wp-content/plugins/formcraft/file-upload/server/content/files/16089ea2f91de7---zukatuporofaz.pdf In PDF document text
    • http://aucoindeshalles.fr/menu/file/51250863025.pdfIn PDF document text
    • https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/314af1955eed4ddde63d18e34536c3c0/lumitewexi.pdfIn PDF document text
    • https://themodernla.com/wp-content/plugins/super-forms/uploads/php/files/12348778a902a89600270f239fe09b80/kemalejogatekedavorekato.pdfIn PDF document text
    • https://drsubhashawale.com/ckfinder/userfiles/files/jelezixizuwaxibu.pdfIn PDF document text
    • http://taixingchem.com/uploadfile/file/20210809094429709.pdfIn PDF document text
    • http://www.icodar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8709f6472f---jobekedemabixetoja.pdfIn PDF document text
    • https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/a20fe388fcac505aa93e46d48792c78b/zekuro.pdfIn PDF document text
    • http://aan.kz/ckfinder/userfiles/files/59214374779.pdfIn PDF document text
    • https://pasarangroup2.com/contents//files/doxijukive.pdfIn PDF document text
    • http://songhandiban.com/uploadfile/file/2021061414450373499.pdfIn PDF document text
    • http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/4128f1ebebf0c639e9a3de5652cf768c/24703421601.pdfIn PDF document text
    • https://vildmarksjagt.dk/userfiles/file/vakakufaku.pdfIn PDF document text
    • http://wacommerce.net/home/integrity/public_html/ckfinder/userfiles/files/sesipimerapuzemaneso.pdfIn PDF document text
    • http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cc3470cdccb---riliwidogisozaxela.pdfIn PDF document text
    • http://asfus.net/virgsurv/userfiles/file/84098019870.pdfIn PDF document text
    • https://anjingliar2.com/contents//files/jexaletu.pdfIn PDF document text
    • http://mhfmjournal.com/data/22/2/55/64/2544879/user/2788947/htdocs/userfiles/file/73894147880.pdfIn PDF document text
    • https://mongolia-volkslift.com/uploads/files/82302686964.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/161080bf3347a8---vumezuguwisigizidibemed.pdfIn PDF document text
    • http://freeski.hu/freeski/file/galudigidoladarokilor.pdfIn PDF document text
    • https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/91e72d280d9010295380fed02ed9e11d/musulugariwogifuxavozawa.pdfIn PDF document text
    • http://kozszemle.hu/uploads/files/81888713229.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=realidades+level+2+pdfPDF 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_off00011169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11169 10300 bytes
SHA-256: 3d20ac7867fc7788d0830fbd94db3ada339f93ce53fd5124766e1726c9507644
font_01_sfnt_off000128c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128C0 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000140d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140D2 19216 bytes
SHA-256: 5d627fe40346b448020114675d7ea8f1cf2895374d84e7fc9d058e7627b67fda