Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a2a682f5c34313…

MALICIOUS

PDF

59.5 KB Created: 2021-09-18 07:34:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-23
MD5: e552c6c978fec38c561e7f76badc3b0f SHA-1: c8050d7e43606ad088abcf9e00d5533fc280b11d SHA-256: c2a2a682f5c343133aa409586c5688d01b4e1adf0f09e1d7f375d308488677f8
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, suggesting a phishing or malware distribution scheme. The ClamAV detection and ML classifier indicate malicious intent, likely to trick users into downloading unwanted software or visiting malicious sites. No scripts were extracted, but the PDF structure and URL patterns are indicative of a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5307

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://krisoc.ru/uplcv?utm_term=mini+militia+apk+free+download PDF link annotation
    • https://bipalisdemo.dashindonesia.com/userfiles/files/duludonewomix.pdfIn PDF document text
    • https://beamstraffic.com/amb/userfiles/file/bawudakafovalenikapepab.pdfIn PDF document text
    • https://www.c2commercial.com/wp-content/plugins/super-forms/uploads/php/files/7ab6d8e63d2a5a216ebb065c3100b088/jitoxudobeti.pdfIn PDF document text
    • https://intrastorg.com/userfiles/file/fijugoxeder.pdfIn PDF document text
    • https://eletroluz-al.com/_IMG/img_internas/file/dowog.pdfIn PDF document text
    • http://mitroc.com/userfiles/file/nedomeledevojegesame.pdfIn PDF document text
    • http://sipzip.com/userfiles/file/novenoni.pdfIn PDF document text
    • http://geosond.pl/userfiles/file/93447391900.pdfIn PDF document text
    • http://culbertsonlawyer.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/24818345048.pdfIn PDF document text
    • http://svazekobciorlice.cz/userfiles/file/tesexudibobobawetozimuz.pdfIn PDF document text
    • http://vevo.keresztessyoptika.hu/elemek/file/48299035141.pdfIn PDF document text
    • http://podhoru.cz/userfiles/file/36282534273.pdfIn PDF document text
    • http://banphimchuot.com/userfiles/file/34896766693.pdfIn PDF document text
    • http://bukvoznaika.ru/ckfinder/userfiles/files/pojedajogeji.pdfIn PDF document text
    • http://air-con.ru/upload/files/48573939262.pdfIn PDF document text
    • http://snbedu.com/uploadfile/file///2021090906330762.pdfIn PDF document text
    • https://indianhairtransplant.com/ckfinder/userfiles/files/22201796793.pdfIn PDF document text
    • http://likuidart.com/files/ckeditor/files/46837399398.pdfIn PDF document text
    • http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1612efb5c50d44---kopefumilod.pdfIn PDF document text
    • http://www.musicboxpiano.com/contentfiles/96854507032.pdfIn PDF document text
    • https://abisspaandboutique.com/nbloom/fckuploads/file/dudawigogiriwilul.pdfIn PDF document text
    • http://matonaklawfirm.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/85134624438.pdfIn PDF document text
    • http://mim2010.ru/userfiles/file/pakovoweka.pdfIn PDF document text