Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7d350bcd27cdfab…

MALICIOUS

PDF

47.5 KB Created: 2021-09-26 04:27:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26
MD5: 7e737274fb6e8ff5920a9462c85ec3e2 SHA-1: 784a9ef1e3a3325c239eb63e02f5a496a019dc96 SHA-256: f7d350bcd27cdfabed0b0c258f9c120bd266365bdc77491460f3dd3a9b5070ed
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and a large number of external URIs, many of which point to disposable domains. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing or malware distribution sites. The embedded JavaScript is likely used to facilitate the redirection or exploit PDF vulnerabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5618

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
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://alshuka.ps/ckfinder/userfiles/files/jifawovoluwibida.pdf In PDF document text
    • http://membranekeyboard.pl/_data/file/60807635473.pdfIn PDF document text
    • http://hkwwta.org/userfiles/89837966832.pdfIn PDF document text
    • http://xn--hh0b97d8is16e.com/userData/board/file/noxozobavowenig.pdfIn PDF document text
    • http://pm-ural.com/uploads/files/8395497239.pdfIn PDF document text
    • http://aftp.bg/userfiles/file/metuxunebapileboz.pdfIn PDF document text
    • https://tideandtigers.com/ckfinder/userfiles/files/48565384066.pdfIn PDF document text
    • http://ordineveterinarivenezia.eu/userfiles/files/povidiwapisikomi.pdfIn PDF document text
    • https://vashadvokat82.ru/wp-content/plugins/super-forms/uploads/php/files/e25fb20d07d468ce58070f66ead3b864/77941229957.pdfIn PDF document text
    • http://www.slappedtogether.com/editoruploadfiles/file/8781528647.pdfIn PDF document text
    • https://macauroommate.com/ckfinder/userfiles/files/revarokawawinogakamejigef.pdfIn PDF document text
    • http://gidromall.ru/img/uploads/file/xokiv.pdfIn PDF document text
    • https://silatur.com/js/ckfinder/userfiles/files/98136416492.pdfIn PDF document text
    • https://olterus.net/contents/files/bokegake.pdfIn PDF document text
    • http://tndgdemo2.com/ckfinder/userfiles/files/15683244751.pdfIn PDF document text
    • http://tostonet.cl/ckfinder/userfiles/files/833163208.pdfIn PDF document text
    • http://madiran-cruduparadis.fr/ckfinder/userfiles/files/54566797974.pdfIn PDF document text
    • https://stabiactiv.com/userfiles/file/46081975628.pdfIn PDF document text
    • http://whatifitspossible.com/ckfinder/userfiles/files/xaworuduxonaxa.pdfIn PDF document text
    • http://westernstudioservice.com/admin/userfiles/file/67017060759.pdfIn PDF document text
    • http://www.badischer-kunstverein.de/ckfinder/userfiles/files/nopefonatelenejipalovoger.pdfIn PDF document text
    • http://demirlermetal.com/resimler/files/93906356941.pdfIn PDF document text
    • http://abpjseah.news-read.com/upload/files/44491692202.pdfIn PDF document text
    • http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1614175df38089---xetakopizopulemasajigife.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=offline+maps+android+google+mapsPDF link annotation