Malicious PDF — malware analysis report

Static analysis result for SHA-256 084f75486e68a63e…

MALICIOUS

PDF

75.6 KB Created: 2021-06-27 21:32:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: a46b0a96e1676126f792ff1b60663494 SHA-1: e2bd9ed8fdeca51c54ec623ba863992b7b68b7dc SHA-256: 084f75486e68a63e342b89389bfc46c7fa34ff1a40cffac1f7671726a2b9b99b
196 Risk Score

Malware Insights

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

The sample is identified as malicious by ML classifiers and ClamAV, and exhibits characteristics of a Business Email Compromise (BEC) attack. The document's content, though heavily obfuscated in the provided excerpt, is described by heuristics as a 'Payment redirection / bank-detail change lure'. The presence of numerous external links, many pointing to compromised CMS upload directories, suggests an attempt to host or redirect to malicious payloads. No scripts were extracted, but the PDF structure and heuristics indicate exploitation of vulnerabilities for client execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9947

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
  • 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://cmtdental.com/upload/ckimg/files/giwejagerejonisurovem.pdf In PDF document text
    • http://jockmurray.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081d355d0c0c---gesekesobizawinisafavuzo.pdfIn PDF document text
    • http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/16082cbebd3036---62440902461.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a693b9220ed---70480961011.pdfIn PDF document text
    • https://cplastik.cz/data/cms/file/lojigikijowikabavad.pdfIn PDF document text
    • https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/835ab9e23db03a7db644cc74c42ce72e/85902241586.pdfIn PDF document text
    • http://funperm.ru/content/file/ledaxejufojiniruvaz.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/e55b94cd414e20ee9feedcda0532c240/49219768238.pdfIn PDF document text
    • https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/b817b554ff0091b007be03d670083894/77623360360.pdfIn PDF document text
    • https://hotnews.md/upload/userfiles/files/95049202412.pdfIn PDF document text
    • http://akinmedical.com/uploads/file/81832713653.pdfIn PDF document text
    • http://medica-brno.com/files/gututila.pdfIn PDF document text
    • http://mega-stainlesssteel.com/uploads/image/files/xugiwizediv.pdfIn PDF document text
    • http://adaviestransportltd.com/userfiles/file/36921921861.pdfIn PDF document text
    • https://acronimocostanzo.com/userfiles/file/75143430928.pdfIn PDF document text
    • https://givemeit.ru/wp-content/plugins/super-forms/uploads/php/files/58bcf07948af21f92ba77ea639b93bdd/sokaliwik.pdfIn PDF document text
    • http://xn--e1aaafipco3bk8gra3b.xn--p1ai/upload_picture/file/66155295002.pdfIn PDF document text
    • https://rijst.nu/userfiles/file/zogoveposizofapufib.pdfIn PDF document text
    • http://vytvarnyobchod.cz/UserFiles/File/85221645487.pdfIn PDF document text
    • http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16095cbdc9f0b7---tonizolodatisise.pdfIn PDF document text
    • http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/16078080f1db00---digusolidisag.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609dae12652ce---86065512225.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160a0be9e20799---xozujexokufofifanaruzal.pdfIn PDF document text
    • https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/4ceb22ee90f8a7bc4933f559d85e6256/9029019690.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=pay+my+registrationPDF link annotation
    • http://kioskcondoweb.wpengine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f50fd23704---16402732161.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_off0000c93b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC93B 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000e152.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE152 10520 bytes
SHA-256: 0bcaff98690ce150e0e20c2b56481698813b3b470e74eeb0ffc2a3fbf30929cb
font_02_sfnt_off0000f94a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF94A 15536 bytes
SHA-256: 4c3a6a26c265e8f35366c93e1d1401ebca9cd77a6840c90aa29f80a85554584c

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