Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c0bc1d7921e422…

MALICIOUS

PDF

59.6 KB Created: 2021-09-16 11:58:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-16
MD5: eb448fe78edc162e7db6ed98b9e0c39a SHA-1: f17ad80e8b5b1b65a5a18cf1524a6a16fb99a16c SHA-256: 07c0bc1d7921e422e5cf6b9bc50ec1e66acbd7cb89940e0d6e8d0e19a57491e2
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample is a PDF file containing embedded JavaScript and a large number of external URIs, many of which appear to be part of a link farm. The ClamAV detection and the heuristic identifying it as a 'Phishing.Trojan' strongly indicate malicious intent. The embedded JavaScript likely facilitates the redirection or execution of further malicious content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4953

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://garglob.ru/uplcv?utm_term=wrong+turn+4+movie+watch+online PDF link annotation
    • http://svsteinfurth.de/radsportfiles/file/32922221562.pdfIn PDF document text
    • https://www.vignolaweb.it/ckfinder/userfiles/files/xirosugakirunibudurafo.pdfIn PDF document text
    • http://gocoachfox.com/userfiles/file/24657165567.pdfIn PDF document text
    • http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137bf296111a---jidojanerariva.pdfIn PDF document text
    • https://clifestyle.net/uploades/userfiles/file/57090363878.pdfIn PDF document text
    • https://lidiyageorgieva.com/ckfinder/userfiles/files/33384866212.pdfIn PDF document text
    • https://mediaget.ru/userfiles/files/xusexowagowe.pdfIn PDF document text
    • http://unseretochter.com/images/file/xijunugoxidekoju.pdfIn PDF document text
    • http://wolfroccatiassociati.it/userfiles/files/bazilizijixos.pdfIn PDF document text
    • http://dubaimotorcycletours.com/uploaded_images/files/tagozoxira.pdfIn PDF document text
    • http://hwayinn.com/image/files/20210913_202749.pdfIn PDF document text
    • http://wernersuarez.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/numesewefegagebuva.pdfIn PDF document text
    • http://salsainkonstanz.de/media/files/95511107903.pdfIn PDF document text
    • http://centralcogtc.com/uploads/file/33949221306.pdfIn PDF document text
    • http://okfilm.kr/userData/board/file/19371813632.pdfIn PDF document text
    • http://peach2560.xyz/js/ckfinder/userfiles/files/ladusarumuz.pdfIn PDF document text
    • http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613016fded905---zuxoneludugesomibejiwatap.pdfIn PDF document text
    • https://simbhaolipower.com/images/file/7408923307.pdfIn PDF document text
    • https://padservhosting.com/userfiles/file/81449346704.pdfIn PDF document text
    • http://devison-matras.com/upload/file/movafikad.pdfIn PDF document text
    • https://e-casainteligenta.ro/userfiles/file/zoxagibazovakujikukosego.pdfIn PDF document text
    • http://forum-auto.ru/data/files/ritinufasi.pdfIn PDF document text

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