Malicious PDF — malware analysis report

Static analysis result for SHA-256 eddf4af2702bcef8…

MALICIOUS

PDF

63.7 KB Created: 2021-09-02 01:48:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: bdec99f9198afb729749c3180bcef3c2 SHA-1: fa4ed482cf7bbb416494792b13f10bd71820fb31 SHA-256: eddf4af2702bcef8083a047a985adcc767513ab305d82a24f0648fcfd079dac3
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to distribute malicious content. The ClamAV detection and ML classifier strongly suggest malicious intent, likely related to phishing or malware delivery. No scripts were extracted, but the structure and URL analysis point to a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9517

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://securitydm.rs/slicice/file/nimoma.pdf In PDF document text
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160700ead55499---70651019900.pdfIn PDF document text
    • http://e-skala.pl/userfiles/file/69222377950.pdfIn PDF document text
    • https://luxmarketing.agency/wp-content/plugins/super-forms/uploads/php/files/cek5hc59a0pps5de90jn3d1ea8/63708779666.pdfIn PDF document text
    • http://dotacjedlaoze.pl/userfiles/file/44756293561.pdfIn PDF document text
    • http://solarexperten.ch/fckeditor/editor/images/file/wedilekoloporowi.pdfIn PDF document text
    • https://adeptos.clevercloud.pt/images/items/files/juxitikipofalut.pdfIn PDF document text
    • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612d26afb818f---46633881097.pdfIn PDF document text
    • https://www.synergyheart2heart.team/wp-content/plugins/super-forms/uploads/php/files/s1pf9tedp8omksg3jbfujqcakk/nuzizorevijefazurojigot.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/fa70b039378ddccadde05cc9ee3d72e8/78241349881.pdfIn PDF document text
    • http://ricoconsultingattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/3576181315.pdfIn PDF document text
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079c401354bc---76283772073.pdfIn PDF document text
    • http://www.zulfugar.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1607c145d06b85---19206580173.pdfIn PDF document text
    • http://agnieszkapawlik.com/userfiles/file/35384169977.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a70312a1f04---mobapobef.pdfIn PDF document text
    • http://krevue.cz/UserFiles/File/1417620487.pdfIn PDF document text
    • https://charqueadaboavista.com.br/wp-content/plugins/super-forms/uploads/php/files/3519f6a279cdad86b759aea899cfbf87/pebimiguxivubililirax.pdfIn PDF document text
    • http://gerd-pollak.de/userfiles/file/91399532359.pdfIn PDF document text
    • http://chapraptti.org/userfiles/file/98494368517.pdfIn PDF document text
    • https://hoangvan.vn/wp-content/uploads/files/lisafikekowav.pdfIn PDF document text
    • http://clarksville.net/wysiwygfiles/file/96109791709.pdfIn PDF document text
    • http://www.siposferenc.hu/html/23724658698.pdfIn PDF document text
    • http://eiffelflowersquesnel.com/userfiles/file/57788904956.pdfIn PDF document text
    • http://londonjip.com/userData/board/file/zoxazinabosijija.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=kcet+2017+question+paper+with+solutions+pdf+free+downloadPDF link annotation

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