Malicious PDF — malware analysis report

Static analysis result for SHA-256 207fc94e0ee02c21…

MALICIOUS

PDF

55.8 KB Created: 2021-07-10 09:51:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: ecbf4e70833f714b45c51ede86adafb7 SHA-1: be12cfc07c99d2d7aacd64b0de7a92873af95c6d SHA-256: 207fc94e0ee02c21585325b7c7988d2d29216b0cb1d1d108863f74250c87a868
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF contains numerous links to compromised WordPress sites, which in turn host other PDF files. This behavior is indicative of a link farm designed to distribute malicious content or conduct phishing attacks. The ClamAV detection and ML classifier further support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5455

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 http://4seasonstours.in/userfiles/file/femawafakado.pdf In PDF document text
    • https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c1e489a62f6---66509520734.pdfIn PDF document text
    • http://komputerzagrosze.pl/userfiles/file/41647450817.pdfIn PDF document text
    • https://www.sadcmedia.com/wp-content/plugins/super-forms/uploads/php/files/a1ahopo4nhebuaofvu7ihnmg1d/70553796455.pdfIn PDF document text
    • https://certifiedmoversinc.com/wp-content/plugins/super-forms/uploads/php/files/cf188d746bb949bb202564dd67a85002/95529062510.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4a892a3cf7---pavinuxafafebeg.pdfIn PDF document text
    • http://www.a-fairys-choice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16081e2cd612b0---sazedutoduz.pdfIn PDF document text
    • https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/16095b286c9cd9---vijagusiz.pdfIn PDF document text
    • https://home18.ru/wp-content/plugins/super-forms/uploads/php/files/ed300dc1beccf1fa77989edc1c439e72/16491518001.pdfIn PDF document text
    • https://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/o4ti0h7qbeb8fomgbcks9gpe48/34414287337.pdfIn PDF document text
    • https://rumahbaruku.com/contents//files/37443617147.pdfIn PDF document text
    • https://gdr.co.il/wp-content/plugins/super-forms/uploads/php/files/0d5ada31b526894c5b6dcec00427b0d8/dulupotagukupariginiwo.pdfIn PDF document text
    • https://fellowpeo.com/wp-content/plugins/super-forms/uploads/php/files/bd7db8a0aaed3efdc2224f949cec1068/18789219693.pdfIn PDF document text
    • http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085fb7d73d7a---33730720564.pdfIn PDF document text
    • http://xn--12cm8caae5d9a0a0a1dxk6dd.com/user_img/files/soxonebufovigenip.pdfIn PDF document text
    • http://swaminarayangm.org/userfiles/file/66909161931.pdfIn PDF document text
    • https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/f360c89b5bfdce41cfbadad4d195ddd0/nelezabiguzekimizuvudajo.pdfIn PDF document text
    • https://hkbca.org/UploadFiles/file/20210620060031158.pdfIn PDF document text
    • https://www.beadvised.co.uk/wp-content/plugins/super-forms/uploads/php/files/03141112a966821a4af03bc0333b7284/dalegigog.pdfIn PDF document text
    • https://lepjunk12.hu/uploads/files/sefabe.pdfIn PDF document text
    • https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/4883873579.pdfIn PDF document text
    • http://georgefamilyreunion.org/clients/86186/File/xifegafavixeg.pdfIn PDF document text
    • https://www.budgetskemaet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609408567f7db---siwelal.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/A3Ryygt5BCM/uplcv?utm_term=lower+arm+painPDF link annotation