Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7a6e572b2204eb3…

MALICIOUS

PDF

59.9 KB Created: 2021-03-11 09:15:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c5e9099c6207c681af906a7e7e34adb2 SHA-1: 9e1ccbba9e539e5607408e0a9dfc1b34ba56b6c7 SHA-256: b7a6e572b2204eb370d8d9bc04eb86ab8cbe9a8602316c74bc0e57458214f166
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6841

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/award?keyword=teknik+konseling+behavioristik+pdf PDF link annotation
    • https://katozela.weebly.com/uploads/1/3/0/8/130874493/sifarum.pdfIn PDF document text
    • http://faxixovojaja.sportsontheweb.net/sig_sauer_p320_x_compact_holster_owb.pdfIn PDF document text
    • https://nebikaxo.weebly.com/uploads/1/3/4/6/134655772/nuxil.pdfIn PDF document text
    • http://kungfumalibu.com/92420523714h08a4.pdfIn PDF document text
    • http://tk-pobeda.site/funajexijegujuzituiozld.pdfIn PDF document text
    • https://larekupexog.weebly.com/uploads/1/3/4/8/134884129/7268940.pdfIn PDF document text
    • http://xonigej.mypressonline.com/white_and_rodgers_thermostat_manual_1f78.pdfIn PDF document text
    • http://vexezujuzas.scienceontheweb.net/electrical_instrumentation_textbook.pdfIn PDF document text
    • http://newyearshop.site/aprendizajes_clave_preescolar_lenguaje_y_comunicacion63ckm.pdfIn PDF document text
    • https://safipeta.weebly.com/uploads/1/3/1/4/131408280/jofapubulix.pdfIn PDF document text
    • https://kajubogoxin.weebly.com/uploads/1/3/0/9/130969430/lasekizoxexonuxi.pdfIn PDF document text
    • https://s3.amazonaws.com/fefurorobumi/11611923523.pdfIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/a_series_of_unfortunate_events_characters_quiz.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/24401825863.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2484dbb-47b4-425e-b52c-9a65860cc2c1/kixotepafez.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/57827831565.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/137e82bb-a483-4004-aa0c-08a941058197/nowoxovoxerubisimu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66152128-a51b-4c05-9ea5-b9689de1c81d/10782040562.pdfIn PDF document text
    • http://zorikeroz.onlinewebshop.net/rozig.pdfIn PDF document text

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