Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e38494a63744cb9…

MALICIOUS

PDF

81.1 KB Created: 2021-08-31 15:13:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-19
MD5: 7d8c1845f3ea5a2c6be74da1435de574 SHA-1: d26586c2aea2b47d3e49f695a97422fb35c98089 SHA-256: 4e38494a63744cb974f10df6cb6cffe9118bcc47bdfd34a88e68730ca7980023
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://www.eflox.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c4cece99ff2---vukixofifozirumo.pdf In PDF document text
    • http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16107bf6d62415---nabikevati.pdfIn PDF document text
    • https://christembassyromford.org/wp-content/plugins/super-forms/uploads/php/files/5a29b4cf8f522f75760d44f3cd50f2cf/xibabivarorefeku.pdfIn PDF document text
    • http://bertrandetgastineaudesigners.com/userfiles/file/gekos.pdfIn PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608112f120db8---82228750152.pdfIn PDF document text
    • http://tomekorea.com/userData/board/file/noparufivatofogol.pdfIn PDF document text
    • http://bukhatirhomes.com/userfiles/file/72910988561.pdfIn PDF document text
    • https://danielstrehlau.com/userfiles/file/19737425008.pdfIn PDF document text
    • http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b803036f2ca---15985865610.pdfIn PDF document text
    • http://milcontabil.com.br/wp-content/plugins/super-forms/uploads/php/files/9uc34jo7eujbp54mj5n7622465/28630157718.pdfIn PDF document text
    • https://filetorme.com/upload/files/nuvinalekuverenujapasi.pdfIn PDF document text
    • https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/92be19dfbce655e60b69c353b852c006/mazerorakidedik.pdfIn PDF document text
    • https://iamluno.com/wp-content/plugins/formcraft/file-upload/server/content/files/160719a226cda8---13325533606.pdfIn PDF document text
    • http://odessawa.com/userfiles/file/sofojaganisewam.pdfIn PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610f76321f08c---15679727528.pdfIn PDF document text
    • http://stadion-zarya.ru/ckfinder/userfiles/files/fubalimodigajalud.pdfIn PDF document text
    • http://dentalweek.eu/userfiles/files/gidafitifirogasimebuta.pdfIn PDF document text
    • http://barcelonasixtytwo.com/userfiles/file/bexapagikerexalum.pdfIn PDF document text
    • http://malir-naterac.info/UserFiles/File/goragefo.pdfIn PDF document text
    • http://barsugo.com/ckfinder/userfiles/files/talixuwara.pdfIn PDF document text
    • https://andymullinscommercial.com/home/andy/public_html/ckfinder/userfiles/files/94429090910.pdfIn PDF document text
    • http://fashionflutters.com/ckfinder/userfiles/files/regaregemuvusejorip.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=p+and+c+license+practice+testPDF 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_off0000da2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA2F 16628 bytes
SHA-256: 91329deb6cc95971513a10675c75c807098b46f1fa3d7099809f85d2b35bcc09
font_01_sfnt_off00010500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10500 10388 bytes
SHA-256: 3cb755e7279d244e462a3ac3eb9b208ff5e81d97b51b189402f03e43ea97b40f
font_02_sfnt_off00011c9a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C9A 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1