Malicious PDF — malware analysis report

Static analysis result for SHA-256 1dc4699f69ce9de0…

MALICIOUS

PDF

107.6 KB Created: 2021-07-21 21:24:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-05-30
MD5: ac0bf67583c5b2cd29dcee9034cdb8bd SHA-1: d34d09bf84e990036a3578ba6e1fa891d4e568d9 SHA-256: 1dc4699f69ce9de0024e269bc6a247436e0635fb56d447253efc043eaf60e40b
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

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 http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160afd90c67202---kokutu.pdf In PDF document text
    • http://www.blackhillsdancecentre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf5ec4467f---xivuvuwimemowevid.pdfIn PDF document text
    • http://www.expertnutritionadvisor.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b74ee13cee---32128159088.pdfIn PDF document text
    • https://www.dynasil.com/wp-content/plugins/super-forms/uploads/php/files/b9bd4e42c239a3d40b7176d39e44a52b/vorejimufemeda.pdfIn PDF document text
    • http://syarmarka.ru/userfiles/files/bijilaninegix.pdfIn PDF document text
    • https://matrainagycsalados.hu/userfiles/file/1533257651.pdfIn PDF document text
    • http://sorokolaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/zisirav.pdfIn PDF document text
    • https://anmimar.com/royal/userfiles/file/84870203595.pdfIn PDF document text
    • http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b2c6c6c20---59498499445.pdfIn PDF document text
    • https://raptiherbal.com/ckfinder/userfiles/files/17200299905.pdfIn PDF document text
    • https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/fb135667e263dcd081e7120849c6467b/36156369679.pdfIn PDF document text
    • https://harpethvalleyhealth.com/wp-content/plugins/super-forms/uploads/php/files/01c559e598f8750abb036f41e153caea/70929596397.pdfIn PDF document text
    • https://martybermanassociates.com/wp-content/plugins/super-forms/uploads/php/files/145c349ab55506a98301964913f40301/71937005052.pdfIn PDF document text
    • http://abpaluso.com/upload/file/kupoturugonugireluseruvi.pdfIn PDF document text
    • http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160768d86b3905---75156203569.pdfIn PDF document text
    • https://www.mybizwebsites.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609aa1cbc55e8---63371764270.pdfIn PDF document text
    • http://permanentnimakeup-brno.cz/userfiles/files/fomefo.pdfIn PDF document text
    • https://gegeny.hu/uploads/file/36725406812.pdfIn PDF document text
    • https://globalclassic.org/wp-content/plugins/super-forms/uploads/php/files/443kpd9jqvvi000varspp1pknr/zunidobasegikusurufudamog.pdfIn PDF document text
    • https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/2547f635fd1083692cdd251d1468850d/zebus.pdfIn PDF document text
    • http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/16075a09e1c22f---jipidelulukawuxex.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BvfzZFkJO3s/uplcv?utm_term=pet+names+to+call+your+girlfriendPDF 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_off000140c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x140C5 17316 bytes
SHA-256: 9ed3c6a6ca3255494db43ca5556fc5bae5d9e2dbb8154eedb05e22db609aa4c5
font_01_sfnt_off00016df2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16DF2 11032 bytes
SHA-256: dbe7e59b1d673a39e85f88856d42dcb66a054414842f0dcfa89e80057c64e5d3
font_02_sfnt_off00018772.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18772 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1