Malicious PDF — malware analysis report

Static analysis result for SHA-256 93c5fd48215dc363…

MALICIOUS

PDF

81.0 KB Created: 2022-04-21 12:13:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-13
MD5: 66353f2e4c430f7ce5adb5d280245072 SHA-1: 5f8f6c3fa1370bd2ca56167e3ffbf1bcc674e42a SHA-256: 93c5fd48215dc3633637562a382f41e955e80f105594c36d9cfe8566c683907c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://yubit.co.za/YmrXLWy8?keyword=rain%20school%20pdf%20free PDF link annotation
    • https://autoskola-scp.com/files/80671212604.pdfIn PDF document text
    • https://manhremhoangvan.com/wp-content/uploads/files/73774110425.pdfIn PDF document text
    • https://nagopajasire.weebly.com/uploads/1/3/4/3/134311949/povibolobed_zosop_bekuki_ripuv.pdfIn PDF document text
    • https://pebawatiwokup.weebly.com/uploads/1/3/4/5/134576243/3963358.pdfIn PDF document text
    • http://pbwi.com.pl/admin/kcfinder/upload/files/jisilinu.pdfIn PDF document text
    • https://fefirewaw.weebly.com/uploads/1/3/0/7/130775199/xatikefapumejinal.pdfIn PDF document text
    • https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/b8afc819eb1a5969c5cf73292eaefa65/36232792991.pdfIn PDF document text
    • http://a1climbing.com/userfiles/files/nagifi.pdfIn PDF document text
    • http://hometextiles-consultant.com/ckfinder/userfiles/files/94305317462.pdfIn PDF document text
    • https://tvmreza.tv/ckfinder/userfiles/files/vapawepurodobuxiz.pdfIn PDF document text
    • https://www.iccis20.scrs.in/kcfinder/upload/files/gebanobuzuvozise.pdfIn PDF document text
    • https://farnost.nivnice.cz/files/file/97325055893.pdfIn PDF document text
    • https://tijisifexabid.weebly.com/uploads/1/3/1/0/131070771/8820383.pdfIn PDF document text
    • https://vumopiwerelo.weebly.com/uploads/1/3/4/7/134730258/silepuruvobaluziw.pdfIn PDF document text
    • http://kstarsmall.net/userfiles/file///wenaxisisi.pdfIn PDF document text
    • https://kekebamifibem.weebly.com/uploads/1/3/1/6/131606854/6089274.pdfIn PDF document text
    • https://jedzenie365.pl/ckfinder/userfiles/files/sewepurubaxanigovo.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 extracted file (font_00_sfnt_off0000d44a.bin)
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn extracted file (font_00_sfnt_off0000d44a.bin)

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d44a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD44A 18516 bytes
SHA-256: ff8c8311232324452f4a685f2f5fddbe4f88eefa01ad8c5e88a1d172c4887c9e
font_01_sfnt_off00010508.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10508 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00011d1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11D1F 10664 bytes
SHA-256: a62eaf7a232e0aab073619f27aca8a6e544cbc4caf9cc9ab7248fea45a38f287

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