Malicious PDF — malware analysis report

Static analysis result for SHA-256 05dbfd5a1a28e6dc…

MALICIOUS

PDF

89.9 KB Created: 2021-07-31 05:17:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 7afbea0b43be6f2a45877e38048bd645 SHA-1: 38209918a47bd32f9daf96d9cee8d01b68b446d6 SHA-256: 05dbfd5a1a28e6dc8ede4b6c1bef339e383d5f86edba940ce8dab6aa472ff87a
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external links, many pointing to compromised or disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely facilitates the redirection to these external URLs, which are designed to lure users into downloading further malicious content or engaging in phishing activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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
  • 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.
  • 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://medvor.ru/uplcv?utm_term=cook+up+a+storm+full+movie+download+in+hindi+dubbed+filmyzilla PDF link annotation
    • http://talleresjpg.es/img/file/dizujubunodixodevilumu.pdfIn PDF document text
    • https://everestart.com/images/stories/file/11327958820.pdfIn PDF document text
    • https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/546ad3153f2e89db81425180b260f1d1/wajuzi.pdfIn PDF document text
    • http://apsara.ru/userfiles/file/vazenerobogoxa.pdfIn PDF document text
    • http://cohensevents.com/clients/74638/File/34206026176.pdfIn PDF document text
    • https://tasteadmin.com/ckfinder/core/connector/php/custom/wysi_uploads/files/kapumororodo.pdfIn PDF document text
    • https://divanich96.ru/admin/ckfinder/userfiles/files/bulevevo.pdfIn PDF document text
    • http://babamoleskine.com/files/file/85445561499.pdfIn PDF document text
    • https://ilc.ua/wp-content/plugins/super-forms/uploads/php/files/5vnu8fqkv3nt4s0msd42256ao6/kanamapudepabipeguwi.pdfIn PDF document text
    • http://epoch-making.jp/js/upload/files/jafikejibirebunap.pdfIn PDF document text
    • https://pelicanfinancialnetwork.com/ckfinder/userfiles/files/gapaxuzilugufujir.pdfIn PDF document text
    • https://www.sidertest.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608a778044ded---tetozez.pdfIn PDF document text
    • https://evergreencans.com/userfiles/file/vewosurelivibowewiginu.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bba042b073---10225000345.pdfIn PDF document text
    • http://beiwendq.com//data/attachment/file/rigugogelolamememetevo.pdfIn PDF document text
    • http://playeasypiano.com/resources/fck_images/fufevojibazabumifokenodul.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16094b9cee7ab4---11324618952.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7455eeedca---fikumired.pdfIn PDF document text
    • https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160b7e600794c2---vasolikuseriw.pdfIn PDF document text
    • http://oodow.cn/upload/file/210702111234065789h66fv78a6knz.pdfIn PDF document text
    • https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160bb1f8a3618a---63115341426.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ec7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC7B 17740 bytes
SHA-256: f44bc7ecbd4cac62fbbcbcc3cdd898b69c14f860290699bed16aa117160ca68c
font_01_sfnt_off00011b11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B11 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00013328.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13328 11452 bytes
SHA-256: a2312258617def6528b5c7cea95e3fdc2e3195c9eab927b76addaec4a8dccd24
font_03_sfnt_off00014de9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14DE9 2396 bytes
SHA-256: 4479ccb6bf908860713f5bee9830d511b2a2189fbf3395c23bcc011be10e4c7e

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