Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2ad97d6f12a4e28…

MALICIOUS

PDF

85.1 KB Created: 2021-07-01 09:50:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 30e1180204709cd97262e7ca58a7ec74 SHA-1: 8fd246aa07d9e8c573d659171805398e0fe0cd6f SHA-256: e2ad97d6f12a4e2893b1bce15bb4421c32d7fd69d97f037def4cfd3d2a1212cf
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF contains embedded JavaScript, which is often used to exploit vulnerabilities or redirect users to malicious sites. The numerous external URIs, many pointing to compromised CMS upload directories or disposable hosting, suggest a phishing or malware distribution campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely involving exploitation of PDF vulnerabilities to execute further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9970

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://smidgel.ru/uplcv?utm_term=introduction+to+artificial+neural+systems+zurada+pdf PDF link annotation
    • http://ibshop.gr/uploads/_uploads/files/lerexilotuwozabev.pdfIn PDF document text
    • http://technoauto.jp/js/upload/files/robalin.pdfIn PDF document text
    • http://ekolojikweb.net/upld/userfiles/file/8424178667.pdfIn PDF document text
    • http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072e68836046---zirotunuxapimuturaxupe.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/56c7349f724bd8d83af36468bde1a798/zaxebawariniveg.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160db786d26b25---57441359958.pdfIn PDF document text
    • http://ekotronic.eu/files/file/tonuvugefajebumege.pdfIn PDF document text
    • https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/s94185svk92q8rbkud2gfoqv3a/raxizavekogewek.pdfIn PDF document text
    • http://akgikorea.com/file_upload/fck_upfile/file/sijuwolezukipaxuxi.pdfIn PDF document text
    • http://susanirvine.com/clients/82887/File/11079500175.pdfIn PDF document text
    • http://lifestyleufa.ru/wp-content/plugins/super-forms/uploads/php/files/112f86126154affc09cc7f2795e8afc9/nusajobenegidamuni.pdfIn PDF document text
    • http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/160c7bfc814fcd---45321318622.pdfIn PDF document text
    • http://ippon.lv/uploads/File/30822299680.pdfIn PDF document text
    • https://www.alpha-dynamics.gr/wp-content/plugins/formcraft/file-upload/server/content/files/16077d32ebc5f9---1990499537.pdfIn PDF document text
    • https://mariellatriolo.it/public/file/votexalegoraregolejidixib.pdfIn PDF document text
    • http://polyalpan.hu/_user/file/duletilikadaruxon.pdfIn PDF document text
    • http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160a7e85b00e00---gipenid.pdfIn PDF document text
    • http://donghotam.com/luutru/files/semojirejifawiwadipuxodo.pdfIn PDF document text
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/2b8863e8207489f8146243c81ec7e906/10886412670.pdfIn PDF document text
    • https://forumhotel.by/wp-content/plugins/super-forms/uploads/php/files/a7u6fb4v1l6jmmdcdemrh0ma75/69972114585.pdfIn PDF document text
    • http://aaaexpressheating.com/userfiles/file/gudarapaxomigi.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_off0000e797.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE797 11008 bytes
SHA-256: d57ff92ca95f34a25654190c691a77bf4c7c2f86b56420d54257acbf46676324
font_01_sfnt_off00010137.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10137 17316 bytes
SHA-256: 74f150d9162711712d8444e5ae75867dc97d73f9d1198f6368ba4cca82e00c7b
font_02_sfnt_off00012ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EE8 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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