Malicious PDF — malware analysis report

Static analysis result for SHA-256 08f39c2802bc7334…

MALICIOUS

PDF

95.1 KB Created: 2021-06-29 05:34:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: a5ceea258c9308b30a3dc90ade5cf988 SHA-1: abfb759e8d768ff16372e29460ee977227a2babb SHA-256: 08f39c2802bc733415f6979ee9f67def745ae88822b112706c5cfb54c3d4396a
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and by an ML classifier as malicious. It contains embedded JavaScript and a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to host malicious content or phish for user credentials. The presence of JavaScript indicates a potential for executing malicious code within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

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://rclurie.com/wp-content/plugins/super-forms/uploads/php/files/874b5169578e67b0ad95c1afd8ef4087/47315827959.pdf In PDF document text
    • http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160baef448e0a7---jokilojajekonazetuwobi.pdfIn PDF document text
    • http://curry-box-deluxe.de/userfiles/file/76202400770.pdfIn PDF document text
    • https://www.cocochan.com.pk/wp-content/plugins/super-forms/uploads/php/files/db9af220086a0b6289af33882c3f5049/vefanepabusezebubikabud.pdfIn PDF document text
    • https://www.marbelitesa.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160b09405325a9---28297814604.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/e0a4e67a0f6c1a7584f3138f1385769a/95719513850.pdfIn PDF document text
    • http://baugeraeteverleih.de/benutzerdateien/ranidolobomusaliganiguzo.pdfIn PDF document text
    • https://bawwabatrizq.com/userfiles/file/31376352780.pdfIn PDF document text
    • http://allprintusa.com/admin/images/file/88756134635.pdfIn PDF document text
    • https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16084bcd9d4933---91752827921.pdfIn PDF document text
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/72n7em55i92mejjocm85i6euf4/jotufijukutefakojane.pdfIn PDF document text
    • https://www.focus.mu/wp-content/plugins/super-forms/uploads/php/files/10ae92f2045639cd4b9788b6e88db914/nemonimapoposamavawezun.pdfIn PDF document text
    • http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16082ba2feef06---jijib.pdfIn PDF document text
    • http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc5b9c27ebe---91271752226.pdfIn PDF document text
    • https://profbuhotchet.ru/wp-content/plugins/super-forms/uploads/php/files/ad785c9d0485516e71aa163afa2ba082/xibubirutejepijijum.pdfIn PDF document text
    • http://matkinhantai.com/luutru/files/52699985206.pdfIn PDF document text
    • http://www.dereformasenalicante.com/archivos/files/73855446393.pdfIn PDF document text
    • http://carnow.jp/js/upload/files/jewev.pdfIn PDF document text
    • https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/f3a6b6fdf64a394aaaa05302d1530931/lisunivexisomosozevuzub.pdfIn PDF document text
    • http://prodottoitalia.eu/userfiles/files/sivokona.pdfIn PDF document text
    • http://commune-bourre.com/userfiles/file/zezulowujajebidif.pdfIn PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a10cc8f3f50---tubavu.pdfIn PDF document text
    • https://www.properties-thassos.com/wp-content/plugins/super-forms/uploads/php/files/mmgcn514d9edo3qgum0lt8e06a/vofapajinazeripunovunogen.pdfIn PDF document text
    • https://actioncoach.com.my/wp-content/plugins/formcraft/file-upload/server/content/files/1609a49c001124---59730596830.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=signing+naturally+3.8+answersPDF link annotation
    • https://www.coursehero.com/file/25900610/Signing-Naturally-Unit-35pdfViewIn 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_off00010d68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D68 18128 bytes
SHA-256: 31ea05bc0cb7ba2234bf05a74b7d58fbf83b4585289372c8716bfac9e1697430
font_01_sfnt_off00013d4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13D4A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off00015561.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15561 10984 bytes
SHA-256: 5d9d6f18adad0ea978dbcf7de6dc6c4ec17fdebceec7110c940c9322bac7244a