Malicious PDF — malware analysis report

Static analysis result for SHA-256 2672208996907b65…

MALICIOUS

PDF

88.7 KB Created: 2021-07-06 13:23:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: e46ee621b9ebd4e92ea4ad8eb7792484 SHA-1: eadfb67d8ecea21848bbcba3a95cea20cff5ee99 SHA-256: 2672208996907b656d75da72f217bc9dad2783658c39f301523d1c95ae74b064
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to host malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware distribution. The presence of external URIs and link farms points to an attempt to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6306

Heuristics 5

  • 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
  • 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://pixomot.ru/uplcv?utm_term=square+root+of+281 PDF link annotation
    • http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/160836aaf79fd2---1672253705.pdfIn PDF document text
    • http://heyumpnd.com/userfiles/file///3382513485.pdfIn PDF document text
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc23ee7696---kinozazofawumobafu.pdfIn PDF document text
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/160bd07b6cdee3---16444688941.pdfIn PDF document text
    • http://famcareconnect.org/wp-content/plugins/formcraft/file-upload/server/content/files/160d73dfa991f8---1045902732.pdfIn PDF document text
    • https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/bd97f0e9e830119c86f031ad7dec48f1/30725595740.pdfIn PDF document text
    • http://oodow.cn/upload/file/210627152921034942v95g3gemf67e.pdfIn PDF document text
    • https://ppuhperspektywa.pl/files/edytor/file/4130918251.pdfIn PDF document text
    • https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/245da5f28d5281a98f6c89c7f9222173/96639734159.pdfIn PDF document text
    • http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16078f22beb547---disisesa.pdfIn PDF document text
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/1606e085e18e60---nawudodetapumudo.pdfIn PDF document text
    • https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/a24b67408ca43b69913d07a93a016a9a/sudiremegazafa.pdfIn PDF document text
    • https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/e48c9ab3fb39de1d2329068570a21cef/92346000036.pdfIn PDF document text
    • https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/907fa4890ee6376dbcd8b69ab9c0024c/48085481259.pdfIn PDF document text
    • http://erbamedica.org/userfiles/files/fuwijisapoju.pdfIn PDF document text
    • https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160958293de64a---fagaro.pdfIn PDF document text
    • https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/j29752s729qamu4carerd0ki4r/37159763838.pdfIn PDF document text
    • http://shinex-auto.com/userfiles/file/84346333965.pdfIn PDF document text
    • http://dataction.org/demo/dataction/media/46799399019.pdfIn PDF document text
    • https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb6191e0be---vuwovemozuto.pdfIn PDF document text
    • http://www.alwaysflorida.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b766868df57---88694755241.pdfIn PDF document text
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/313cab4bb9a0de200c2faab3400810f9/3264809129.pdfIn PDF document text
    • http://studioingegneriavaragnolo.com/userfiles/files/55680485721.pdfIn PDF document text
    • https://retta-bg.com/userfiles/84002419510.pdfIn PDF document text
    • http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16072aeb187085---puropugezaginad.pdfIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000125cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x125CC 10500 bytes
SHA-256: a4176623147a580774f225cee2e53398bfa52e9f50dc970382926dfeaa85794e