Malicious PDF — malware analysis report

Static analysis result for SHA-256 72b923b98e71f67a…

MALICIOUS

PDF

96.0 KB Created: 2022-04-06 17:51:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: 92b2ba28b65053b6d3c2a09970a788c9 SHA-1: 61c668a1e2e368b7416890ed42c66e40340ee3a1 SHA-256: 72b923b98e71f67aca3a722ea52b24e489f7d75005d9689a5719226637430713
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9968

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://wirut.co.za/YmrXLWy8?keyword=la%20ciudad%20y%20los%20perros%20resumen%20por%20cap%C3%ADtulos%20rincon%20del%20vago PDF link annotation
    • https://rumikupim.weebly.com/uploads/1/3/5/3/135310872/25b6f8ddab7a3.pdfIn PDF document text
    • https://jelijase.weebly.com/uploads/1/3/4/6/134694082/6c9c3.pdfIn PDF document text
    • https://girisuwudogepo.weebly.com/uploads/1/3/0/7/130776006/1646855.pdfIn PDF document text
    • https://piguvedulo.weebly.com/uploads/1/3/4/7/134724556/vezusa-zuzugosiku-vugexojenemim.pdfIn PDF document text
    • https://fanizoliboligom.weebly.com/uploads/1/3/1/0/131070566/16009.pdfIn PDF document text
    • https://sowubewakojanit.weebly.com/uploads/1/3/4/3/134348505/7303123.pdfIn PDF document text
    • https://carcarnet.com/home/sandbox/domains/hkdance.tritek.hk/public_html/ckfinder/userfiles/files/96762973387.pdfIn PDF document text
    • https://linkevicius.com/upload/galery/file/gerisaxumewo.pdfIn PDF document text
    • https://dijitisabotiji.weebly.com/uploads/1/3/5/3/135324222/xapebipoz.pdfIn PDF document text
    • https://pasudavekeri.weebly.com/uploads/1/3/1/4/131437626/vozemok-dunizararufuge.pdfIn PDF document text
    • https://www.caissedesecolesdu5eme.fr/backoffice/ckfinder/userfiles/files/botuwewijokitotesupar.pdfIn PDF document text
    • http://rentaruedas.com/files/others/fipemoxedok.pdfIn PDF document text
    • https://pewugitunuwirex.weebly.com/uploads/1/3/4/3/134373176/bezuredu-fitogobiposu.pdfIn PDF document text
    • https://ibshospitals.com/userfiles/file/4728251618.pdfIn PDF document text
    • https://rixotojar.weebly.com/uploads/1/3/0/9/130969533/2e3d0f286d6.pdfIn PDF document text
    • http://dostavka.markasib.ru/ckfinder/userfiles/files/wuzujur.pdfIn PDF document text
    • https://serofewaz.weebly.com/uploads/1/3/1/3/131379274/zemino_nifeza_sepelubosatad_viwesokovo.pdfIn PDF document text
    • https://tovibimatajo.weebly.com/uploads/1/3/5/9/135963052/e1ff533d4e91.pdfIn PDF document text
    • https://xazonidunigi.weebly.com/uploads/1/3/4/5/134590253/wugofeluv.pdfIn PDF document text
    • https://bokorakalawu.weebly.com/uploads/1/3/4/6/134643693/xezapi.pdfIn PDF document text
    • https://wosapinilesodiw.weebly.com/uploads/1/3/5/3/135347506/dopadanab-lavaba.pdfIn PDF document text
    • https://xadenekowote.weebly.com/uploads/1/3/0/7/130776743/2986864.pdfIn PDF document text
    • http://ricettebiagi.it/uploads/assets/file/nevexinikuwinepejopatewo.pdfIn PDF document text
    • https://wemuxafav.weebly.com/uploads/1/3/4/8/134860001/d739c1c4d.pdfIn PDF document text
    • https://e-motorcycle.tw/upload/emotorcycle/files/bofet.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_off00010f01.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F01 11156 bytes
SHA-256: ffb1bb10862cd87189512d545910d23b3fccaf86a706b7ef3d7ae0ed03b01592
font_01_sfnt_off000128e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x128E5 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000140f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140F7 17940 bytes
SHA-256: 165b2e8ed1e7835c7df18ceb6e72a9f8fb8f859f0bc2fcba88f1469263ba9a9b