Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7553b8d432d78b3…

MALICIOUS

PDF

55.3 KB Created: 2021-10-06 19:45:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: f3364e807c21ef52579c1d210db678c1 SHA-1: 75e9c7f24b6e89cb17f28498613ea53cf1122085 SHA-256: e7553b8d432d78b3082d5ae405e2c530dd3e524584ba67139ea24a31d78ceb46
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' suggests the document is designed to host numerous links on disposable domains, a common tactic for phishing or distributing further malware. The embedded URLs, while some are marked benign, point towards a strategy of redirecting users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6197

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 https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/e2687eea5fceab8642af2e098f3633ef/mukoxiwenerosakuwekiza.pdf In PDF document text
    • https://equipelec.fr/ckfinder/userfiles/files/mizewawapabivabe.pdfIn PDF document text
    • https://sailstudy.in/ckfinder/userfiles/files/wotelisabinemifezodup.pdfIn PDF document text
    • http://universalgroupautos.com/files/others/xedidogorakekuseguzuv.pdfIn PDF document text
    • https://swapnauraan.com/ckfinder/userfiles/files/29280976248.pdfIn PDF document text
    • https://www.loscam.com/lib_common/ckeditor/ckfinder/userfiles/files/56808072760.pdfIn PDF document text
    • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/31921101507.pdfIn PDF document text
    • http://studioguagnoni.it/userfiles/files/debudenupezaliwuvetelom.pdfIn PDF document text
    • https://unitytradecapital.com/ckfinder/userfiles/files/vabeterapolizafapix.pdfIn PDF document text
    • https://lesartsdansmonjardin.com/userfiles/file/20210901185836.pdfIn PDF document text
    • https://olivierdaulte.com/ckfinder/userfiles/files/jovokuso.pdfIn PDF document text
    • http://cungcapbaoduongcuanhatban.com/upload/files/welidalaxanam.pdfIn PDF document text
    • http://essentielles-theater.de/UserFiles/File/86426189063.pdfIn PDF document text
    • https://cakkue.com/contents/files/54008428460.pdfIn PDF document text
    • http://phanvienphianam.com/uploads/userfiles/file/gekikagulijadato.pdfIn PDF document text
    • http://vtdsbinhthuan.vn/public/uploads/userfiles/file/2959487876.pdfIn PDF document text
    • http://bearings-home.com/userfiles/file/fezuxaxiligoriw.pdfIn PDF document text
    • http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1612fcb936e390---28711153559.pdfIn PDF document text
    • https://onsale.social-push.cc/data/fckeditor/files/nanopimifupule.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=how+to+fix+deadzone+on+xbox+controllerPDF link annotation