Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cfeb195b63d0e3e…

MALICIOUS

PDF

49.7 KB Created: 2021-06-19 04:05:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 0999a5071ee19df8940cbf72cd303d93 SHA-1: 65acee8719c92e51551aa76ea408f273edfcfd79 SHA-256: 8cfeb195b63d0e3eab60324d9f8127b06cb1fca3e21c9718338bb9af5cffae91
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, many of which are hosted on compromised CMS platforms or disposable hosting. The document body, though heavily obfuscated, contains text related to 'cheat codes' and application metadata, suggesting a lure to trick users into visiting these malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8783

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://synerhu.ru/uplcv?utm_term=kode+cheat+subway+surf PDF link annotation
    • https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16076136160ed9---41324545498.pdfIn PDF document text
    • http://geose.ru/userfiles/file/56472389511.pdfIn PDF document text
    • http://hkt-optics.com/hkt/images/userfiles/file/wujap.pdfIn PDF document text
    • https://www.psalighting.com/wp-content/plugins/super-forms/uploads/php/files/48d5ea40fd026b1cd818669819bc5dce/tamevopapawidadunokerusiv.pdfIn PDF document text
    • https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607956a7d33f1---90898260571.pdfIn PDF document text
    • http://au-coeur-du-temps.com/userfiles/file/terifanopinel.pdfIn PDF document text
    • http://brucemsmithlaw.com/clients/e/e2/e252bfde01ef004f685a9648d307a4b9/File/pavowozamonijipuja.pdfIn PDF document text
    • https://hps-gruppe.com/wp-content/plugins/super-forms/uploads/php/files/qab0q9rtvvsve5bvtvrmt4o6qp/tovinu.pdfIn PDF document text
    • http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160ab57ff77dce---soxofibosebidopuriw.pdfIn PDF document text
    • https://faceless.me/userfiles/files/59812490134.pdfIn PDF document text
    • http://sutphinsgermanshepherds.com/clients/21958/File/44351802429.pdfIn PDF document text
    • https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160aed22583c44---suvamajoxusefiwinitotu.pdfIn PDF document text
    • http://www.peopleoftheheath.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609137bf5d9a9---13067656117.pdfIn PDF document text
    • http://eprdel.cz/userfiles/file/deduxawunoxefoluduwalu.pdfIn PDF document text
    • https://www.unicodesystems.com/wp-content/plugins/super-forms/uploads/php/files/3djapneqjemaohs4mkbeu4jvr5/56972154390.pdfIn PDF document text
    • http://fixmyhelicopter.com/project-new/christianbook/upload_images/file/fubukimuligoguwisifer.pdfIn PDF document text

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