Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a3371d071ae710c…

MALICIOUS

PDF

88.1 KB Created: 2021-07-03 19:15:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: f576c604c5527b4ed56ff9b61cd8c5ae SHA-1: c118fab94a17b66d4ffbfc573beae9210234964f SHA-256: 6a3371d071ae710c5b9e5e76e59d016f67b9c0d89aa569786c125694167fb6c4
236 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is classified as malicious and exhibits characteristics of an advance-fee scam, likely luring victims with promises of prizes or parcel deliveries. The document contains numerous links to external URLs, many hosted on compromised WordPress sites, which likely serve as download locations for further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9952

Heuristics 8

  • 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 to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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.
  • 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://chcial.ru/uplcv?utm_term=risk+management+and+financial+institutions+pdf+download PDF link annotation
    • https://chocoinmobiliario.com/wp-content/plugins/super-forms/uploads/php/files/8f926f6a9bfa9045edb0de07a7325177/14755182297.pdfIn PDF document text
    • http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/cdf9e04045aac8eb5be618d2db231e99/46078054282.pdfIn PDF document text
    • http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7819aa4a9---60220831380.pdfIn PDF document text
    • http://www.aadhar-interior.com/userfiles/file/bumudepupew.pdfIn PDF document text
    • http://kingsfinancialconsulting.com/userfiles/file/mokagasesumevafufekorusef.pdfIn PDF document text
    • https://www.sevgiliyevideo.net/wp-content/plugins/formcraft/file-upload/server/content/files/1609268c300e94---bililimul.pdfIn PDF document text
    • https://xn----9sbccjdbca7cyaieg1a3j.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/900d98219a736c7411880aca81c1179c/jorufotufonajabebapitawe.pdfIn PDF document text
    • http://elmiraclassiccountry.com/wp-content/plugins/super-forms/uploads/php/files/8pttn9d737ll9uvjk9a2dceuc2/jemoti.pdfIn PDF document text
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f0c40a1464---2969752828.pdfIn PDF document text
    • http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160989c04dc08b---zoduwenagedakuler.pdfIn PDF document text
    • https://stayatrosetta.com/wp-content/plugins/super-forms/uploads/php/files/144mr9in9qfocmqrlivdfbgocj/11213658039.pdfIn PDF document text
    • http://turnyras.lt/Files/file/94790908125.pdfIn PDF document text
    • http://otelm4b.ru/admin/ckfinder/userfiles/files/gigureguxi.pdfIn PDF document text
    • http://www.vivelamusica.es/wp-content/plugins/formcraft/file-upload/server/content/files/160d6080cf3c1e---wijarodumogalitarofejura.pdfIn PDF document text
    • https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/abb43dce3f35abaef075d8e6cedb4fbf/lagokaduv.pdfIn PDF document text
    • https://www.kbstephens.com/wp-content/plugins/super-forms/uploads/php/files/e1cde1b12b683ffb77188353935e76b1/42149276314.pdfIn PDF document text
    • http://aisef.org/uploads/userfiles/file/file/bujiwibido.pdfIn PDF document text
    • http://www.sunarnuricomuisvealisverismerkezi.com/wp-content/plugins/super-forms/uploads/php/files/k7b36lb73fhk8lthtd86vqfh42/99707725454.pdfIn PDF document text
    • https://sindonis.com/userfiles/file/18944587717.pdfIn PDF document text
    • https://casabresciani.it/uploads/file/zewinugawitovidolanamo.pdfIn PDF document text
    • https://www.baileysmilk.com/wp-content/plugins/super-forms/uploads/php/files/59e01439a95bf733ef01814259a99bc7/44981046330.pdfIn PDF document text
    • http://svenstavik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078c40f01183---visafulorer.pdfIn PDF document text
    • https://alllegaltask.com/wp-content/plugins/super-forms/uploads/php/files/hsst0i0n76ivf5e1c2rraqvuh0/subusaxuranen.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_off0000f04f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF04F 17684 bytes
SHA-256: 6bd56f3368e979bb9c894e839b165cf2ac921b369513134514b7c2bccac155c9
font_01_sfnt_off00011ea2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EA2 11188 bytes
SHA-256: 5e68bea35bffb3672ab4d3f69095f928430292d7a668e5781421cfd1c42d4671
font_02_sfnt_off000138a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x138A7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.