Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a9597aca10e02ae…

MALICIOUS

PDF

47.8 KB Created: 2021-09-25 18:30:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: b49d7addd146814eba5cb0e20b41f7ed SHA-1: a744e59a5ba501b6091bac301ed8881f0266f011 SHA-256: 3a9597aca10e02aec0d89d1486704a94a8157e69a35ff72dc8f2c279c2439992
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many of which point to suspicious domains and are structured as a link farm, suggesting a phishing or malware distribution campaign. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of techniques used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6441

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://aspirecambodia-edu.org/userfiles/file/58384275943.pdf In PDF document text
    • https://hankilfood.com/upfile/files/35112207773.pdfIn PDF document text
    • http://zhongjiukeji.com/upload_fck/file/2021-9-8/20210908101021763064.pdfIn PDF document text
    • http://sevvalturizm.com/rsm/files/68144526938.pdfIn PDF document text
    • https://www.zochrot.org/ckfinder/userfiles/files/rakukeliver.pdfIn PDF document text
    • http://xyr59.com/filespath/files/20210920191632.pdfIn PDF document text
    • http://location-venise.com/italie_documents/files/silizimon.pdfIn PDF document text
    • http://szymonadamczyk.pl/uploads/fck/file/nafalaxobedopaxuvunule.pdfIn PDF document text
    • https://lyna-garage.com/htdocs/cljr/data/files/89283605699.pdfIn PDF document text
    • https://www.hotel-restaurant-plainfaing.fr/ckfinder/userfiles/files/zonuzefotitireso.pdfIn PDF document text
    • http://lamorenj.com/userfiles/files/28914718929.pdfIn PDF document text
    • https://chetanaus.org/bheru/uploadfiles/file/26642123000.pdfIn PDF document text
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/s2ccaco2jc1o02e3f623o3orbl/kozisulexokir.pdfIn PDF document text
    • http://traktorpulling.de/ablage/userfiles/files/liniluzomeruputizedawedos.pdfIn PDF document text
    • http://kfbma.org/files/fck/file/80427455634.pdfIn PDF document text
    • https://cheeselicious.net/UserFiles/file/vetiki.pdfIn PDF document text
    • https://ihappywash.com/uploads/files/202109060907354878.pdfIn PDF document text
    • http://vasekurzy.cz/userfiles/file/bidakifeposofimag.pdfIn PDF document text
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/2fgsnbnacordp1hjooj7tb1n74/fulowudamezu.pdfIn PDF document text
    • http://tauroconsulting.pl/userfiles/file/gabuxebafevedexupelopuweb.pdfIn PDF document text
    • http://ilyxrace.com/userfiles/files/1039750034.pdfIn PDF document text
    • http://abwingsjanaf.com/uploads/files/potos.pdfIn PDF document text
    • http://lnhaihui.com/userfiles/file/20210921063142_1116907009.pdfIn PDF document text
    • https://partnermind.cz/images/files/wakikiralax.pdfIn PDF document text
    • http://cadelupo.it/userfiles/files/xunatusew.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=suzuki+violin+4+pdfPDF link annotation