Malicious PDF — malware analysis report

Static analysis result for SHA-256 362c2ec85478e573…

MALICIOUS

PDF

230.5 KB Created: 2021-08-07 03:25:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-04
MD5: eed7bbc841fbff8a5e84808a53f4bdfd SHA-1: 289d3c9830c6948aeb13c2b0185e950416f748d1 SHA-256: 362c2ec85478e57385666b942e99f8b3f6e6bc64f9616c19f1b797187b6c7ec0
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV. The file embeds a large number of external links characteristic of an SEO link farm, many hosted on compromised CMS upload directories. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4261

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://daiichigroup.net/uploads/news_file/pubilatuwaramusanedav.pdf In PDF document text
    • https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/7c23778d0a615a3679a5860faf969a5c/99421636756.pdfIn PDF document text
    • http://ac-kenigsberg.ru/files/file/44310578626.pdfIn PDF document text
    • http://alumcity.ru/userfiles/file/34919988284.pdfIn PDF document text
    • https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/bd7fc461d27a1f364afd90914d777866/36151354679.pdfIn PDF document text
    • http://raczcsalad.hu/files/zuwul.pdfIn PDF document text
    • https://xn--80adj7cxa.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/dadb98dc64839e207f7691562426e821/40716218381.pdfIn PDF document text
    • https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/1b86e47158a7bf631a840599685f25c0/jusexi.pdfIn PDF document text
    • http://coral-travel66.ru/admin/ckfinder/userfiles/files/21204231748.pdfIn PDF document text
    • https://cortemadera.com/wysiwygfiles/file/lefagu.pdfIn PDF document text
    • https://golf-tout-terrain.com/publish/page/file/38431075109.pdfIn PDF document text
    • http://business-plan-capalpha.fr/mbp/upload/images/images/upload/ckfinder/43335513470.pdfIn PDF document text
    • https://anfauglir.com/images/file/sapoxatexuxatuw.pdfIn PDF document text
    • http://xn--80adpfaaeictf0c6c7i.xn--p1ai/public/file/zejebefemojiteweliw.pdfIn PDF document text
    • https://erdemlerkoleji.com/resimler/files/zuzupusu.pdfIn PDF document text
    • https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160860ab4999f7---difuludop.pdfIn PDF document text
    • https://nolimitscenter.be/peausitive/images/FCKeditor/file/rowodopadozaponi.pdfIn PDF document text
    • https://sensiblemachines.com/ckfinder/core/connector/php/files/sedonudojepuzik.pdfIn PDF document text
    • https://ladangmimpi2.com/contents//files/wiwowuviso.pdfIn PDF document text
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/28c3a62dc3e599a96fa01ef61d0c4738/kumotatejexipozifabe.pdfIn PDF document text
    • https://cffcommunications.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1/160cb31045bc66---93489535964.pdfIn PDF document text
    • http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c2959b1174d---fofasakokulegamoxosowexop.pdfIn PDF document text
    • https://bloc-immo.com/images/jimaxevumotupul.pdfIn PDF document text
    • https://mannerfeltdesignteam.se/ckfinder/userfiles/files/tufabisojusewetonowuloje.pdfIn PDF document text
    • https://ukdirectremovals.com/wp-content/plugins/super-forms/uploads/php/files/2acf8e5ffd973c141eca9689f9c68e26/wolunawilur.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=man+watching+desmond+morris+pdf+downloadPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00034fcd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34FCD 11148 bytes
SHA-256: 6bf21ef71fa2223cb8f29796486e98758ad5517685a5f0fd29d445bb1fc625bb
font_01_sfnt_off0003697b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3697B 18228 bytes
SHA-256: ce3e3d776380e42537a6f9bbf4db26258954139364bd21aaf5567e59c015356a

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