Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2f9959cbf8bfaf1…

MALICIOUS

PDF

78.4 KB Created: 2021-10-11 21:47:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-13
MD5: 9ce235d33be8bb26b85af825ef1db8c3 SHA-1: 45c18b041873cabf694fa0b52a0ed68346719ecb SHA-256: f2f9959cbf8bfaf1949543e32a09934a187764917dfb21edad9baf32a410f15e
164 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9958

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1616380339e30e---60693805324.pdf In PDF document text
    • http://thetsaban3watnuea.com/UserFiles/file/lebakugiwobitado.pdfIn PDF document text
    • http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/161597f261df93---26676337263.pdfIn PDF document text
    • http://villa-carlshorst.de/sites/default/files/file/41084740598.pdfIn PDF document text
    • http://yuanjiangchem.com/upload/files/xudosikosavomolavuvajakir.pdfIn PDF document text
    • http://filipdegreef.be/uploads/files/nuxagumurokakunaw.pdfIn PDF document text
    • https://noble-program.site/js/ckfinder/userfiles/files/rabububamusog.pdfIn PDF document text
    • http://yesfabric.com/images/upload/File/rapifod.pdfIn PDF document text
    • https://7mark3t2-7aya.com/contents/files/tuzafolab.pdfIn PDF document text
    • https://rugsinc.in/UserFiles/files/jupibakusemetati.pdfIn PDF document text
    • https://ktmcollege.org/public_html/userfiles/file/71329336835.pdfIn PDF document text
    • https://pchome.uzai.ca/upload/files/70928451411.pdfIn PDF document text
    • http://dakmoto.cz/obrazky/file/lixifonuribujotoduzili.pdfIn PDF document text
    • http://uco-kampen.com/media/files/mufibixezesatelulaf.pdfIn PDF document text
    • https://desertflying.club/wp-content/plugins/formcraft/file-upload/server/content/files/16135b117e54d2---70511257319.pdfIn PDF document text
    • https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/161374756783f7---22675805566.pdfIn PDF document text
    • https://bdata.vn/upload/files/jakomaj.pdfIn PDF document text
    • https://argentinaproduct.com/ckfinder/userfiles/files/merijopamulixivorebalosu.pdfIn PDF document text
    • http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d341aab75a---66390322172.pdfIn PDF document text
    • https://cristalensi.com/public/File/paritazapimixubaduwoxowom.pdfIn PDF document text
    • https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/90586870028.pdfIn PDF document text
    • https://ifbscalidad.eus/files/galeria/files/99317903614.pdfIn PDF document text
    • https://autosaloncenter.com/uploads/files/gejokatimapa.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/6Zflnl449io/uplcv?utm_term=world+crude+oil+productionPDF 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_off0000cca9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCA9 10272 bytes
SHA-256: ded3031b736ce7cd43b62807cb3fb9becdb447178c78f87918577ed782529988
font_01_sfnt_off0000e3d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D4 18464 bytes
SHA-256: f2eac7abf9875437da4661e7088314cd98d57761c50ecdbe473fa61bfd375413
font_02_sfnt_off00011480.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11480 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1