Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd735c0cb327fc15…

MALICIOUS

PDF

80.9 KB Created: 2022-03-30 23:00:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 72664cac120a7b8ec8b1271277140f4e SHA-1: 5c2a1e62333c8eea27d0913739de5bebfa60a54a SHA-256: cd735c0cb327fc158a11d386db714671c762d0f2042c10871ff270566a1f5edb
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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.
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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=html%20css%20js%20editor PDF link annotation
    • https://gebiralegesexi.weebly.com/uploads/1/3/0/8/130814020/7123533.pdfIn PDF document text
    • https://wixetaduzem.weebly.com/uploads/1/3/4/4/134471786/vavusuvudisadedo.pdfIn PDF document text
    • https://amoslodge10-org.alljobsinliberia.com/ckfinder/userfiles/files/29495746962.pdfIn PDF document text
    • http://atletika-pardubice.cz/files/file/25259494169.pdfIn PDF document text
    • http://www.korsun.ic.ck.ua/js/kcfinder/upload/files/jidavitutawetipuxosipag.pdfIn PDF document text
    • https://pnvvr.ro/userfiles/file/nufoxawuraripunodojelev.pdfIn PDF document text
    • http://vanguardhungary.hu/userfiles/file/kojiwu.pdfIn PDF document text
    • https://kinoxumore.weebly.com/uploads/1/3/4/4/134463035/6508110.pdfIn PDF document text
    • https://euroquimicadistribucion.com/zabaleta/data/imagenes_contenidos/file/masosemapep.pdfIn PDF document text
    • https://wawawafux.weebly.com/uploads/1/3/4/8/134896626/vogegenafisiz.pdfIn PDF document text
    • https://dojovirofolabi.weebly.com/uploads/1/3/1/0/131069789/nomafelovipeta.pdfIn PDF document text
    • https://xedafiwiwez.weebly.com/uploads/1/3/2/3/132302754/b7f78f.pdfIn PDF document text
    • https://zojajodasu.weebly.com/uploads/1/3/4/3/134354616/5917641.pdfIn PDF document text
    • https://gujejedadun.weebly.com/uploads/1/3/1/3/131398181/6540739.pdfIn PDF document text
    • https://vulabomanuxuw.weebly.com/uploads/1/3/4/8/134857085/doresefategawi.pdfIn PDF document text
    • http://hotelaronnyobilas.com/assets/ckeditor/kcfinder/upload/files/55952217234.pdfIn PDF document text
    • https://dupubevanedi.weebly.com/uploads/1/3/4/6/134649007/7874547.pdfIn PDF document text
    • https://jopixedojowagi.weebly.com/uploads/1/3/4/8/134852439/jemukokovu_mozizarepitaji_rugube_vazisewanubiki.pdfIn PDF document text
    • https://sogazefod.weebly.com/uploads/1/3/4/0/134000298/pederewaf.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_off0000db9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB9A 16416 bytes
SHA-256: cfa2c3fbce80cc5607e01af033b793d17c57c214fb1d96e845eedea48cccd336
font_01_sfnt_off0000f239.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF239 16764 bytes
SHA-256: e392fd8f46376ff4913a4ef1c541cb28ad741339f09595f4898b9eff0e885e70
font_02_sfnt_off00011dfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11DFC 10388 bytes
SHA-256: d7f44fc5a31e33091e7ab330ebff618208ae636ba4b4645b2b112f50a1159d1e

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