Malicious PDF — malware analysis report

Static analysis result for SHA-256 94193caf4d08c176…

MALICIOUS

PDF

90.7 KB Created: 2021-06-27 00:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 36cd6651bd195e7134071b307783fb76 SHA-1: 372e48338811ac254da6989251c791c5a7a39ac3 SHA-256: 94193caf4d08c1764692ba5390a7470a73f380216bacd7cce19c1e39496d0ec3
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics and an ML classifier as malicious, with ClamAV identifying it as a phishing trojan. It contains numerous external URIs, many pointing to compromised WordPress sites, suggesting it is used as a link farm to distribute malicious content or conduct phishing. The file's structure and embedded URLs indicate it is designed to redirect users to potentially harmful external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9948

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 https://coretry.ru/uplcv?utm_term=dispensable+in+tagalog PDF link annotation
    • https://tvsporedi.si/vsebina/23046605445.pdfIn PDF document text
    • https://lokmangal.co.in/wp-content/plugins/super-forms/uploads/php/files/df56faa45b8f17b64fb455cc6a465fde/pekumibamalobejoz.pdfIn PDF document text
    • https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/221e847f2ec94b1a1abcb26112dc7a82/givimixozolalu.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160722d7877b3c---webivisesotoribo.pdfIn PDF document text
    • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/d7b273388b045f294f7ba5cb67ca7b72/numolufe.pdfIn PDF document text
    • https://www.prestigeautobody.com.au/wp-content/plugins/super-forms/uploads/php/files/9c34531264f091b4682d62c83c66ea74/30914366501.pdfIn PDF document text
    • http://geredekombiservisi.com/userfiles/file/64348365044.pdfIn PDF document text
    • http://goteneplast.se/files/images/file/52106147943.pdfIn PDF document text
    • https://btcauction.vn/hinhanh/file/xelalizonosajexufix.pdfIn PDF document text
    • http://mjsolankifoundation.com/fck/imagesfile/45917609532.pdfIn PDF document text
    • http://nensi.si/upload/file/57918341741.pdfIn PDF document text
    • http://www.irrv.org/uploads/files/54781291815.pdfIn PDF document text
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f27dd5422e---37806168240.pdfIn PDF document text
    • http://sanruou.com/app/webroot/uploads/files/5943820541.pdfIn PDF document text
    • https://businessservicesuk.com/userfiles/file/bodorobovutixagag.pdfIn PDF document text
    • https://socialchangefactory.org/wp-content/plugins/super-forms/uploads/php/files/f1d5647f77788f337bc0fd715e91e54e/beririxelusozux.pdfIn PDF document text
    • http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093afccde7e4---mowetubalalikivopo.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f655a4759a---berixodatop.pdfIn PDF document text
    • http://www.next-conseil.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607dac500ab34---winetexenonap.pdfIn PDF document text
    • https://amirep.com/wp-content/plugins/super-forms/uploads/php/files/fc2419998fbb7ebfbaa7095c40418ce4/vefosizi.pdfIn PDF document text
    • https://tsegypt.com/file/4364521216.pdfIn PDF document text
    • http://fantasypartyentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5093cd169---tewinonebazatogofabojok.pdfIn PDF document text
    • http://asalsold.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b86c279ccbb---vodonugukumosikotuvan.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

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_off0000fe44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE44 18664 bytes
SHA-256: 82dccc621d3876a6ecad5e24e43cd9e19c93f5b6cb73debaac635a02e7382b23
font_01_sfnt_off00012de6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12DE6 10468 bytes
SHA-256: e7938c137056afe2ff70f4375199a950bc527bfe1af231d7badbea8e0aac87fb
font_02_sfnt_off00014595.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14595 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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