Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c5710280da46d99…

MALICIOUS

PDF

44.2 KB Created: 2021-09-15 17:44:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-24
MD5: 5f3495163c0523c811955de54ebf1753 SHA-1: cca8f212619aa79fbe847fd1f52fd27ff449af14 SHA-256: 3c5710280da46d99c881b76eac859e7f0f4773740a9b353de08bc90d54a482b8
132 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, indicating an attempt to redirect the user to malicious websites. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The presence of JavaScript points to T1059.007, and the nature of the file suggests it was likely delivered as a Spearphishing Attachment (T1566.001).

Machine Learning

  • Nyx PDF Classifier malicious score 0.7035

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://philabc.ru/uplcv?utm_term=iphone+se+vs+note+10+lite PDF link annotation
    • https://egca.fr/userfiles/file/63356626160.pdfIn PDF document text
    • https://mimpishiosatu.com/contents/files/79079175056.pdfIn PDF document text
    • http://adams-gold.ru/archive/image/file/jumolilodamin.pdfIn PDF document text
    • http://ags-sib.ru/ckfinder/userfiles/files/zevatexanasopaluki.pdfIn PDF document text
    • http://planetamama.ru/files/file/33352786858.pdfIn PDF document text
    • http://acpiindia.com/userfiles/file/pupukagoxisuluz.pdfIn PDF document text
    • https://horkolas-gatlas.hu/ufiles/file/73738270048.pdfIn PDF document text
    • https://www.vignolaweb.it/ckfinder/userfiles/files/88111867339.pdfIn PDF document text
    • https://leavereview.com/customerinterview/ckfinder/userfiles/files/jowokiketodowigitufibelot.pdfIn PDF document text
    • http://aodaiminhhanh.com/app/webroot/uploads/files/vupotevemitexitub.pdfIn PDF document text
    • https://rubfila.in/files/file/48687631962.pdfIn PDF document text
    • http://www.hydro-tg.pro/upload/file/65147279015.pdfIn PDF document text
    • https://semagro-msw.ru/pics/images/file/janifuzuger.pdfIn PDF document text
    • http://andreuma.madteam.net/ckfinder/userfiles/files/67393436768.pdfIn PDF document text
    • http://buyyoutubecomments.com/ci/userfiles/files/namurefa.pdfIn PDF document text
    • http://labmansour.com/app/webroot/js/ckfinder/userfiles/files/nolobuvinawifid.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.