Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ddc68bb61a58eea…

MALICIOUS

PDF

82.9 KB Created: 2021-09-04 18:54:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 5326a3c80481c25cb21e92a5ac9d9f60 SHA-1: 8f87891a114d0269df9019f978548852c0071a31 SHA-256: 3ddc68bb61a58eea900e7caa09e91a0757d658a7eeeaacd7a2c2da5527f9eae8
156 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://kurtoglumob.com/upload/file/63730036802.pdf
    • http://museeducuir.org/upload/files/6644868857.pdf
    • http://www.consorcio.edu.pe/wp-content/plugins/formcraft/file-upload/server/content/files/160a1d2db18600---49271839678.pdf
    • https://www.helmmsp.ca/wp-content/plugins/super-forms/uploads/php/files/94e91b9c4e641a67d765dd120b492c08/mezitanurifopaloti.pdf
    • http://drivescuolaguida.it/userfiles/files/56576290632.pdf
    • https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1611f29dd8dcd3---73205006709.pdf
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d220ce0c08e---xoluzafosigutejakaj.pdf
    • http://xn--90ad5ackt1d.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/e910240ed0313d57f5d59f7aac0aa52d/87956884686.pdf
    • http://minhnguyenvn.com/uploads/userfiles/file/zatigijus.pdf
    • https://shih-tzu.ro/files/file/36120175203.pdf
    • http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b4f2d3af5f8---rurarepareribovavetapeko.pdf
    • http://abwplazaview.com/uploads/files/kixaputujiwagijafaji.pdf
    • http://mavelikaradiocese.org/rapha/ckfinder/userfiles/files/luvevidudotipazefenas.pdf
    • http://villaturri.com/wp-content/plugins/formcraft/file-upload/server/content/files/16098708a61933---92442176198.pdf
    • https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/sbqo2b8grerfg1ch69h936g5as/35075634455.pdf
    • http://abwferrellpkwy.com/uploads/files/10089928884.pdf
    • https://aterhesseg.com/up_image/file/58198837441.pdf
    • https://codecs.ro/images/file/fuwukulovin.pdf
    • https://aulacvn.com/upload/fck/file/bonifijelibamorogubije.pdf
    • http://soflocops.com/clients/67403/File/72679932069.pdf
    • http://massarentearchitettura.com/userfiles/files/79215028707.pdf
    • https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/270ec7ca41382beb37ccd6fc27c982b4/xataviwune.pdf
    • http://asfcursillo.com/clients/879797/File/zilevutukugomopiledut.pdf
    • https://leifs-auto.dk/images/file/xisotegibelan.pdf
    • https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/d6416a9569b8b50a72652fcd00b1834e/90755813994.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/3vuEKuznOb8/uplcv?utm_term=groundwork+for+the+metaphysics+of+morals+kant+pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da11.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA11 16792 bytes
font_01_sfnt_off0000f223.bin
ff1a3e76afc16c99f66ace8d735a39fb37c5311a07ccb2e4f4d6e3539290d1cb		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF223 18956 bytes
font_02_sfnt_off00012335.bin
8aa5dec0c77406e33d9fbdbbb0965582e2ea2571060d156cf863dbd445df1d96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12335 11316 bytes

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