Malicious PDF — malware analysis report

Static analysis result for SHA-256 941943cf3ba52da9…

MALICIOUS

PDF

89.3 KB Created: 2021-06-27 03:15:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-12
MD5: f33ff3b23305380b54a0483bb8b88acc SHA-1: dc6dd1bcf30988b40cc4df5942055a088a7870c8 SHA-256: 941943cf3ba52da9197596ca084434e2eddfbd8e8bfc36be80215e5cf51362bd
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9835

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
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://vickerycarpet.com/uploads/images//files/24022110944.pdf In PDF document text
    • http://tcihk.com/userfiles/misuzebevukezozeraguti.pdfIn PDF document text
    • https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/92760162a48502907f1f3082d0703ae1/27542227774.pdfIn PDF document text
    • https://www.hadlowsecurityshutters.com/wp-content/plugins/super-forms/uploads/php/files/13a10e69fd250e981c740283a6f74432/tupaju.pdfIn PDF document text
    • http://palami.by/images/file/tesurikaxokelamil.pdfIn PDF document text
    • https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608aace8db4a2---71552619500.pdfIn PDF document text
    • http://iamsoldierfit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf9f020172c---nozifov.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608b9d11759f9---78271239421.pdfIn PDF document text
    • https://brothers-music.com/ckfinder/userfiles/files/56850203830.pdfIn PDF document text
    • http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7931373754---tulekug.pdfIn PDF document text
    • https://laneopx.com/wp-content/plugins/formcraft/file-upload/server/content/files/160764659effbe---xinurenatososebigon.pdfIn PDF document text
    • https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071fa315ee25---57113004572.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609444724be0d---99752844268.pdfIn PDF document text
    • http://solartgaleria.hu/images/file/50853577933.pdfIn PDF document text
    • http://fedime.org/imagenes/18384236458.pdfIn PDF document text
    • https://www.18fire.com/wp-content/plugins/super-forms/uploads/php/files/c4bc744dc3e4f1dc2dbf5e2f0a157d1f/kewetevuwirigodob.pdfIn PDF document text
    • https://zold-kommando.hu/files/87343249370.pdfIn PDF document text
    • http://www.anieliasfx.com/uploads/textareas/file/43181976092.pdfIn PDF document text
    • http://hanhthien.net/uploads/file/57062637287.pdfIn PDF document text
    • http://elazentrale.de/images/uploaded/file/kenidof.pdfIn PDF document text
    • http://asustainable.com/global/file/xafodanobisasutisodo.pdfIn PDF document text
    • https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/f3d9dd3c9a0ca629c60181e2073760e4/rapiniwokerubev.pdfIn PDF document text
    • http://accessiblevehicleservices.com/userfiles/file/jagepuwe.pdfIn PDF document text
    • https://www.napariverinn.com/wp-content/plugins/super-forms/uploads/php/files/17c9b1a42282832e97a73c6c5e85e013/55032390395.pdfIn PDF document text
    • http://montaze.org/democms/userfiles/file/38843021485.pdfIn PDF document text
    • http://beamstraffic.ae/amb/userfiles/file/judonewupap.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=end+of+maghrib+timePDF 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_off0000fa63.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA63 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off00011275.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11275 17428 bytes
SHA-256: 4ebcaa85f8fbecf18c6a366e102f02d290c646fa99316736187b1c4ab3bcc147
font_02_sfnt_off00013fcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13FCC 10712 bytes
SHA-256: 7295a93ffc4dbedde2a6571aa981c7190f31995e7f371296f453e9472a9b1ebf