Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bcfc301c2d264a4…

MALICIOUS

PDF

100.2 KB Created: 2021-06-25 21:44:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: 7a4aea1e3ab1984c8d71389ec80a5f2f SHA-1: 3029fc9dbe16e30733f86a2c587fb1f90b53e2cd SHA-256: 9bcfc301c2d264a4d29979e1a1c3b12e2332b6ede7585c19b72cc52b2dd43728
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads and disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The primary attack pattern involves luring users to click on these links, which are designed to appear as legitimate files but lead to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9886

Heuristics 6

  • 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.
  • 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://lawyerupsmart.com/tempimg/file/25044028688.pdf In PDF document text
    • https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d37ec65baa---37125542630.pdfIn PDF document text
    • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/53e04f74d7fdde4c300744122008ccc0/nedexir.pdfIn PDF document text
    • https://advancedcheckcashadvance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d77b86c65d---dekinutewixidomolufiwuz.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16095cd3beb134---ragozumag.pdfIn PDF document text
    • https://www.alapan.org/fckimages/file/44739869848.pdfIn PDF document text
    • http://terapie-psi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c05eb41e5c9---72168004283.pdfIn PDF document text
    • https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a139a86f987---ribotapofizawukofozusam.pdfIn PDF document text
    • http://cablexconsulting.com/Upload/file/94692091070.pdfIn PDF document text
    • http://www.benvenutialmare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc6ba255601---pobadafafamebibikomidoxo.pdfIn PDF document text
    • http://tuzvedo.hu/elemek/file/87739890954.pdfIn PDF document text
    • http://www.halpellet.hu/userfiles/files/zusakutikisilalukurifab.pdfIn PDF document text
    • https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087162d59b14---febukavazorapebupisibine.pdfIn PDF document text
    • https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160cf1f603e6ec---vavivudadesejefokowef.pdfIn PDF document text
    • http://erdivigado.hu/userkepek/file/17418169175.pdfIn PDF document text
    • https://greyquotient.com/wp-content/plugins/super-forms/uploads/php/files/5cf3aebbcbbd261470e29bdcc3ed8a4b/8775407904.pdfIn PDF document text
    • http://app8itebarandgrill.com/admin/images/file/27009494014.pdfIn PDF document text
    • http://koyomisushi.com/uploads/files/7658785400.pdfIn PDF document text
    • https://microfocus-realize2020mea.com/wp-content/plugins/super-forms/uploads/php/files/bf9f87af20cc5c7d88594c71f89e8d79/dixelifixexi.pdfIn PDF document text
    • https://www.straightmyteeth.com/wp-content/plugins/super-forms/uploads/php/files/d9be2d51d53134e2b331b1c3b95a8a81/jazolerobisa.pdfIn PDF document text
    • http://jarauwerdaenzn.nl/userfiles/file/pomiwawetajavatirup.pdfIn PDF document text
    • https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/qrbk7pteclucd1hpmmfebnapae/sutowametuguvemolurasuder.pdfIn PDF document text
    • https://www.americansummercamps.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086f4d5f1ddf---57496588243.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=what+level+does+pidove+evolve+in+pokemon+sword+and+shieldPDF 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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11210 19116 bytes
SHA-256: d704dfc2d63119f0f44ef800d10328c43b9bcda528fbdac6ba5df4bd6fe8407e
font_01_sfnt_off000143dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x143DD 10892 bytes
SHA-256: 2dc03758921a7d8f730660697218b9fb5885cdaed8c5504334a196932d6f9f42
font_02_sfnt_off00015ceb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15CEB 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_03_sfnt_off000174f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x174F8 3320 bytes
SHA-256: a6f4258fe8222846116ded7498fd676088edcec1e3c6b661a2a24bcc2308ab7f

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