Malicious PDF — malware analysis report

Static analysis result for SHA-256 bcc19ebb4c3ab3af…

MALICIOUS

PDF

120.5 KB Created: 2021-02-26 11:05:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: b2046ea62521bfb26119606ae9fb39bb SHA-1: d5775122227d3ab53e3e7429e9515f806bb4f67f SHA-256: bcc19ebb4c3ab3afd46585e37e911075b4f0bf52d7d22cbec3924a40de4ac77a
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous external links, suggesting a link farm or phishing attempt, as indicated by the PDF_SEO_LINK_FARM heuristic. The ML classifier and ClamAV also flagged the file as malicious. While no scripts were explicitly extracted, the presence of embedded URLs and the overall structure point towards malicious intent, likely to redirect users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9603

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/award?keyword=simple+human+soap+dispenser+user+manual PDF link annotation
    • https://kefelewupu.weebly.com/uploads/1/3/4/7/134711224/bogurotesezexugeleg.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485436/normal_602344495df42.pdfIn PDF document text
    • https://cdn.sqhk.co/javepuju/gjhd2T1/7567097229.pdfIn PDF document text
    • https://cdn.sqhk.co/gevajoke/hj6hdYr/cedar_point_lighthouse_point_reservations.pdfIn PDF document text
    • https://boxotegiperofog.weebly.com/uploads/1/3/1/3/131398000/fatovitemojuli.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461780/normal_601aab80d1eb5.pdfIn PDF document text
    • https://tigepofawi.weebly.com/uploads/1/3/1/0/131071288/fekatipetinuxa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405419/normal_602ceade4661d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451744/normal_5feaf7c22142a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484999/normal_6025182deb9ad.pdfIn PDF document text
    • http://ziwigosopijulal.mygamesonline.org/349488992.pdfIn PDF document text
    • https://nakowubolitek.weebly.com/uploads/1/3/5/3/135349387/5163168.pdfIn PDF document text
    • http://zuzorovix.scienceontheweb.net/how_to_import_audio_tracks_into_garageband.pdfIn PDF document text
    • https://s3.amazonaws.com/rabewiruzitewa/desimazukixugolalenap.pdfIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/chrome_vinyl_sticker_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/tosego/widafitutid.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/cisco_bgp_config_guide.pdfIn PDF document text
    • http://zikoliduxa.atwebpages.com/36404827007.pdfIn PDF document text

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