Malicious PDF — malware analysis report

Static analysis result for SHA-256 94022e6600769ab4…

MALICIOUS

PDF

101.6 KB Created: 2021-06-28 03:30:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-05
MD5: fe8f8ebbe1a94df7131e2c810636c0aa SHA-1: 7cb45c287b0a8a5490f6a7b8bdb0c8acc003804a SHA-256: 94022e6600769ab4e3c28a576708920d51a1d4940be8dc6c779c4c940d22d6b2
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm pointing to compromised WordPress sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to potentially malicious or phishing content, likely delivered via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9919

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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 http://www.bestlifepolicy.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606d077c14d83---43440063954.pdf In PDF document text
    • https://alphacleanwashing.com/wp-content/plugins/super-forms/uploads/php/files/dc34ce5041e98ec7f6ee5ea379f0bae3/73832242802.pdfIn PDF document text
    • https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/1608c73d724c6d---7043229204.pdfIn PDF document text
    • https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607b9ba0c7277---wavezolajakezo.pdfIn PDF document text
    • https://admonks.ru/wp-content/plugins/super-forms/uploads/php/files/a1cc095c3cf6bf8633af57ba421966e7/gojuwalejanefibutawirura.pdfIn PDF document text
    • https://medicinasolidale.org/wp-content/plugins/super-forms/uploads/php/files/f7b3f4f1671a8a9ff55185fff855fae0/gobepobanajetarazezifov.pdfIn PDF document text
    • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/86cb7cf8930ead9b00f27deb44a0f8f8/wobejerolunoz.pdfIn PDF document text
    • https://salubrismd.com/wp-content/plugins/super-forms/uploads/php/files/b3e51c8e09d8979f5bdc3181498d34de/luzuwekizim.pdfIn PDF document text
    • http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b24568c662d---lulotezezugidalajo.pdfIn PDF document text
    • https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/1a5eb34b609ec6fec00de6499484bb20/46770042854.pdfIn PDF document text
    • http://beveragesgs.com/userfiles/file/wijarusojanukixofekefegan.pdfIn PDF document text
    • https://qualitylightsolutions.com/wp-content/plugins/super-forms/uploads/php/files/650ce7f28aeeb3389d770db4a8361a99/mubasof.pdfIn PDF document text
    • http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/cc28f7b66ed4921ff032f12ffda7d564/6603372032.pdfIn PDF document text
    • https://www.arphplumbing.co.uk/wp-content/plugins/super-forms/uploads/php/files/lp9f35e10f81v7jukugte5ohhi/70594383724.pdfIn PDF document text
    • https://expeditions-travel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cb1c06212b---rovuwumubikowisopij.pdfIn PDF document text
    • http://mea-travel.pl/userfiles/file/66545605120.pdfIn PDF document text
    • https://butchercurnow.com/img/shop//contents/28433311834.pdfIn PDF document text
    • https://goldenparadisestsimons.com/wp-content/plugins/super-forms/uploads/php/files/607d11d9d007a499d7127d0b7d2bd51d/96517397651.pdfIn PDF document text
    • http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/1ddeb6cb7dc2d30cd32cbf29da1b8ca3/paxejefofamikevezojaf.pdfIn PDF document text
    • https://seataclighting.com/wp-content/plugins/super-forms/uploads/php/files/421e6a783545bd77582ecafe771656cc/73381297642.pdfIn PDF document text
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/a72f552b097a93bdc25f658fe151c0fd/tuditodumaz.pdfIn PDF document text
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/f8b29361c438cfbfdf3162f2e2b49100/ropopino.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=how+to+defeat+leviathan+spiritPDF 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_off00010a89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A89 19180 bytes
SHA-256: 46b571e028f82ca213e844ed312613dcfcc0228300b316ef31005bcbc8074d8d
font_01_sfnt_off00013b22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13B22 17724 bytes
SHA-256: 2d24bcaecf6b9214fc561ecfc6a81a29a1530c2dafaf12da59ba7bc375f25387
font_02_sfnt_off0001569a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1569A 10740 bytes
SHA-256: 995c73765c0fc351bb265093ef9072a29bf22f1dbcb791de74640111b66a1e6e
font_03_sfnt_off00016f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16F3A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

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