Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e86f17fca91847…

MALICIOUS

PDF

87.5 KB Created: 2021-06-28 05:15:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: efca40d985f4a71031664af06f48619f SHA-1: ce84a8c834b536246f9ebba109d7c915265dded7 SHA-256: 87e86f17fca918470792969967b57fddfc3cb1a611fb2c38d06373dd1486479a
236 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1566.002 Spearphishing Link T1059.007 JavaScript

This PDF document exhibits characteristics of an advance-fee scam and a payment redirection lure, aiming to trick users into believing there are new or changed bank instructions. The presence of numerous links to potentially compromised CMS upload directories and disposable hosting further supports its malicious intent. While no scripts were directly extracted, the document's structure and heuristic firings strongly indicate a phishing or financial fraud attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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 http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608723bd1967c---45338669066.pdf In PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7f6ed117e3---xokipitikuv.pdfIn PDF document text
    • https://binarbaidequipment.com/public_html/userfiles/file/61622825812.pdfIn PDF document text
    • http://cesishotel.lv/res/wysiwyg/file/jedigora.pdfIn PDF document text
    • https://elmaga.lt/components/com_mijoshop/opencart/image/data/files/78705950703.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/6opbl1uelilcmhhmvsqgn5e480/wesalalobubodazobopofen.pdfIn PDF document text
    • https://www.drmarlenebothma.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160cc9b9296d40---vobagujeniketap.pdfIn PDF document text
    • http://pechati-piter.ru/userfiles/file/79115537206.pdfIn PDF document text
    • https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/1f2a831e54ef5f581b48809925bb2198/kegolojabazasugix.pdfIn PDF document text
    • https://oklogistic.lv/upload/file/39305282820.pdfIn PDF document text
    • http://paillasse.hu/userfiles/file/14649047654.pdfIn PDF document text
    • http://eia-edu.com/userfiles/file/saromewiwenavar.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/ttqt3f9kvbur01091fs2fm3h40/59363623603.pdfIn PDF document text
    • https://mariellatriolo.it/public/file/puperofuneru.pdfIn PDF document text
    • http://www.asejnrtigers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b68c63e459d---83335828490.pdfIn PDF document text
    • https://www.growxponential.com/wp-content/plugins/super-forms/uploads/php/files/v7f9boegep6k958jnlmad1n3ng/5984368345.pdfIn PDF document text
    • http://musiconthebay.org/clients/2/26/269dd5bc96e197da989a8dccc71442af/File/67934373451.pdfIn PDF document text
    • https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/tjktdarj0018c9svdld4mn6qc6/burivopam.pdfIn PDF document text
    • http://gsoam.ge/wp-content/plugins/formcraft/file-upload/server/content/files/160ad94c770094---1395965025.pdfIn PDF document text
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/efc310ba286a2e45c19ffe6b02c13566/zepurafenixov.pdfIn PDF document text
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/df805a2e501e522cd9a95a3badab54d6/7491841278.pdfIn PDF document text
    • http://aarogyamedico.com/userfiles/file/22595498150.pdfIn PDF document text
    • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d480837b94e---foxesugarobatarim.pdfIn PDF document text
    • http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160b13bed2abf0---digofazobovozuwatuku.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=what+is+the+routing+transit+number+on+a+checkPDF link annotation
    • 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_off0000f1ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1ED 10956 bytes
SHA-256: 62313d8f80b2fbd1ad5bb6cb0633ded25ff91228552f02c90c6c2d1128711a23
font_01_sfnt_off00010b37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10B37 17308 bytes
SHA-256: 27bd8447cea404d3c28e3a890f08fc7d36b1e3dd8fde17a6d755396a115b7105
font_02_sfnt_off00013891.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13891 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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