Malicious PDF — malware analysis report

Static analysis result for SHA-256 191a2638e762f142…

MALICIOUS

PDF

84.8 KB Created: 2021-06-28 17:21:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-22
MD5: b50db183aa8d15bcb24366319ed530e7 SHA-1: e8e9705327499281bdf116d28fa4549be3f1f7ed SHA-256: 191a2638e762f142e43cf690f95ddcff6e32729680120db01e66ba3f47a0ad34
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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 https://huntic.ru/uplcv?utm_term=warriors+don+t+cry+unabridged+pdf PDF link annotation
    • http://yngc.ru/admin/ckfinder/userfiles/files/tidutedokiximawefaneke.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a6cfea3c996---2280864103.pdfIn PDF document text
    • http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/ec7a9e560c6987744ffbdb35dbf8a459/nixobifimefaja.pdfIn PDF document text
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/16075111fb1abf---wirudipap.pdfIn PDF document text
    • http://chagatea.ru/wp-content/plugins/super-forms/uploads/php/files/036ce475b8790775efac133c7687d9d8/31199850785.pdfIn PDF document text
    • https://marigabung.com/contents//files/jalugile.pdfIn PDF document text
    • http://turagent007.ru/userfiles/file/vevepetigasuto.pdfIn PDF document text
    • http://www.sparkprototypes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5adcccefde---29738814951.pdfIn PDF document text
    • https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/952154e4f3444805702518847708fee8/tizotema.pdfIn PDF document text
    • http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/3kno3ui1lqq8617hmrbnq8kgu7/levaviso.pdfIn PDF document text
    • https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bf90909b994---jotososimite.pdfIn PDF document text
    • http://ytovietnam.net/ckfinder/userfiles/files/kuvulivafogaraburev.pdfIn PDF document text
    • https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a8b3bea98d5---98412136128.pdfIn PDF document text
    • http://evohome.pl/userfiles/file/12200698393.pdfIn PDF document text
    • http://autodilykanka.cz/cmsimple/images/file/kubojapikeve.pdfIn PDF document text
    • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/de7476ee6379257baa1239f88e4e2752/55123812283.pdfIn PDF document text
    • https://www.blackandwhite-salon.com/wp-content/plugins/super-forms/uploads/php/files/2ff88c41e6b31c81f88e5194beb1d0a9/97986781921.pdfIn PDF document text
    • http://cupta.org/userfiles/files/20210528154259.pdfIn PDF document text
    • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cf5943738a1---nakonidefoveseked.pdfIn PDF document text
    • http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160766cedc1526---guratolipi.pdfIn PDF document text
    • https://earplighting.com/wp-content/plugins/super-forms/uploads/php/files/b9b212eba7e9749c4145ce5be1b4f955/gunomuravizuxosivodunusa.pdfIn PDF document text
    • https://dodomacnosti.net/data/file/makajawitaguran.pdfIn PDF document text
    • https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/810699a63bf8258e51362b99fbfaceea/tewilikobulovasiso.pdfIn PDF document text
    • http://m3hotels.com/userfiles/file/zegonajotelumofurujexe.pdfIn PDF document text
    • http://vyrukrc.lt/userfiles/file/rosulufogegemiru.pdfIn PDF document text
    • 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_off0000e5e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E4 11096 bytes
SHA-256: 32bedde0a1ae5f01c56438c5242e472bb2ad36bbfaa27a953f30a78a3b3931ae
font_01_sfnt_off0000ff89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF89 17080 bytes
SHA-256: c24d1b7e2640a7cfa24771ded42e0e7548230bcf8e349ae1905cbc06f3694d10
font_02_sfnt_off00012c04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12C04 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1