Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ef04e562e1bcb61…

MALICIOUS

PDF

49.8 KB Created: 2021-09-26 17:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: 8a385b398a9bcf15aa7bdc610750ff3e SHA-1: 80a6989cd603829406a43654106b89649abb184a SHA-256: 2ef04e562e1bcb61038e5e8072c6c6361411c808f430da3cde79c230ba4babda
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many pointing to disposable domains, and is flagged by heuristics as a link farm and potentially malicious. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests a phishing or malware delivery intent. While no scripts were explicitly extracted, the nature of the URLs and the heuristic firings indicate this PDF is designed to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6901

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://brianhaymore.com/images/e/file/922229474.pdf In PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16131e24024154---pafirijuka.pdfIn PDF document text
    • http://tbeaindia.com/userfiles/file/zeduxitebagokatojunaxim.pdfIn PDF document text
    • http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/51299500343.pdfIn PDF document text
    • http://apisicul.com/userfiles/files/72222123280.pdfIn PDF document text
    • http://gtlfuelmarine.com/userfiles/file/mimaribigipezum.pdfIn PDF document text
    • https://jotekonybakterium.hu/userfiles/files/joputupetodewebudaridi.pdfIn PDF document text
    • https://przyklejki.pl/userfiles/11487208483.pdfIn PDF document text
    • http://unipsyclinic.com/userfiles/file/20210910071020.pdfIn PDF document text
    • http://mega-gold.com/userfiles/files/kovujuzimole.pdfIn PDF document text
    • https://tsegypt.com/file/puriwadefeduzinuvegejo.pdfIn PDF document text
    • http://progetec.org/userfiles/files/wamumademalun.pdfIn PDF document text
    • https://texasbordervolunteers.org/userfiles/file/23594146503.pdfIn PDF document text
    • https://lentes123.com/aym_image/files/waxog.pdfIn PDF document text
    • http://www.fullertherapy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16134fe15d48b1---22308734721.pdfIn PDF document text
    • http://reklamavysocina.cz/UserFiles/File/3402955489.pdfIn PDF document text
    • http://teresachild.com/upload/files/82954978101.pdfIn PDF document text
    • http://mottaing.eu/userfiles/files/gutatufusagetizuvufufu.pdfIn PDF document text
    • http://centonze-vini.com/userfiles/files/kenobabokupapumewi.pdfIn PDF document text
    • http://lagrupacio.cat/file/jitelebegabo.pdfIn PDF document text
    • https://nhatngudongkinh.com/upload/ckupload/files/noladibapej.pdfIn PDF document text
    • http://111-orte.com/testarea/cwsCMSlight/media/files/jilusupezi.pdfIn PDF document text
    • http://www.niceresidence.net/image/upload/File/semoge.pdfIn PDF document text
    • http://infrabud.eu/fckpliki/file/29029651952.pdfIn PDF document text
    • http://gwardiajuvenia.pl/zdjecia/fck/file/falatujilev.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/ngfLrbzwjls/uplcv?utm_term=sonic+scene+creator+gamesPDF link annotation