Malicious PDF — malware analysis report

Static analysis result for SHA-256 c43dad2f635ffe45…

MALICIOUS

PDF

52.6 KB Created: 2021-09-14 05:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-07
MD5: 0904f077484ad244d4d04d739623f0ad SHA-1: 48c206763eef8a91c15871fb27f37e9c38c8e077 SHA-256: c43dad2f635ffe456db10660b0cb8e15c17e2560607df3b0a5520fa3c02ea8af
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The sample was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. It contains numerous embedded URLs, with one heuristic specifically identifying it as a link farm on disposable hosting, suggesting a phishing or redirection scheme. Although no scripts were explicitly extracted, the PDF structure and numerous external links point towards an attempt to direct the user to malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6986

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 http://arcenevents.nl/site/upload/files/85523640066.pdf In PDF document text
    • http://ideviceplus.be/app/webroot/files/userfiles/files/soduv.pdfIn PDF document text
    • http://cerrutistudio.eu/userfiles/files/gejaxotixatotik.pdfIn PDF document text
    • http://greatwalledmond.com/ckfinder/userfiles/files/dijovobekolikato.pdfIn PDF document text
    • https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/i0udb5i22qmm2kcd5ienjl80hc/wilidetat.pdfIn PDF document text
    • http://hilimall.ae/uploads/files/72654834773.pdfIn PDF document text
    • http://telegid.tv/userfiles/files/fenotogasaxa.pdfIn PDF document text
    • http://safeabortionnepal.com/userfiles/file/85485957661.pdfIn PDF document text
    • https://dobre-akce.cz/media/files/file/39957961640.pdfIn PDF document text
    • http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/16139c483672fe---migugiratifuxiwufu.pdfIn PDF document text
    • http://lsphc.com/userfiles/file///sejotogerobenodilubivevu.pdfIn PDF document text
    • http://longbeach.ilovepokebar.com/uploads/files/26038795179.pdfIn PDF document text
    • http://intrinhgia.com/admin/webroot/upload/image/files/pizisejiwivetuvir.pdfIn PDF document text
    • http://byecook.com/ckupload/files/furox.pdfIn PDF document text
    • http://wasserburg.pl/userfiles/file/95590988737.pdfIn PDF document text
    • http://xiangzhuan.tw/upload/files/53291183907.pdfIn PDF document text
    • http://worthingtonpark101.com/userimages/feworovolenujolutosibuko.pdfIn PDF document text
    • http://talleresjpg.es/img/file/xikovagololojilepenewuju.pdfIn PDF document text
    • http://xn--m1age8bh.xn--p1ai/files/file/90180180074.pdfIn PDF document text
    • https://coolinterier.sk/upload/files/nesalikaroxevivafe.pdfIn PDF document text
    • https://btegypt.com/file/14795725154.pdfIn PDF document text
    • http://santabruna.cl/upload/file/83085692132.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=how+to+watch+amazon+prime+tv+on+android+tabletPDF link annotation