Malicious PDF — malware analysis report

Static analysis result for SHA-256 54ed44bf1d9960d3…

MALICIOUS

PDF

50.6 KB Created: 2021-04-06 15:20:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 3cdc9843af3ea165b3c32d9a0058b148 SHA-1: 745196e4ab8b2beacfab257ea28dfcc45d51a6c7 SHA-256: 54ed44bf1d9960d37ff8f7b617595b45673b98c898bffabf45388ab25e1c480b
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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 0.6386

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://baarspo.ru/aws?utm_term=what+does+the+phrase+popular+culture+mean PDF link annotation
    • http://tuwatolu.22web.org/questes_administrao_pblica.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466172/normal_5fe11cdc152cc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465556/normal_5fcb9c5bc8865.pdfIn PDF document text
    • http://fusifasuroxeso.22web.org/35550485179.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454824/normal_5fc959a2c393a.pdfIn PDF document text
    • http://bolagafub.iblogger.org/17740389476.pdfIn PDF document text
    • http://vizilamu.22web.org/82078413309.pdfIn PDF document text
    • http://betafiwes.iblogger.org/surge_arrester.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495393/normal_602925a270aec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385435/normal_602cfe52a0dc0.pdfIn PDF document text
    • http://pimolala.22web.org/sample_mba_recommendation_letter.pdfIn PDF document text
    • http://sosuxuzobives.epizy.com/active_and_passive_voice_story_and_exercises.pdfIn PDF document text
    • https://53ebb62d-ddaf-432f-8dc3-1f4746653467.filesusr.com/ugd/bbd3cf_1a93f7a6cc684940b983a025022531a1.pdf?index=trueIn PDF document text
    • http://lamafuravufezin.epizy.com/71903080947.pdfIn PDF document text
    • https://61249681-e2d1-4375-841a-b3723294d79c.filesusr.com/ugd/3d514e_951075ed32494d10ac5879caa032b4d0.pdf?index=trueIn PDF document text
    • http://mazolofoju.epizy.com/59351449355.pdfIn PDF document text
    • http://pobopujobezov.rf.gd/pumusikajomopukovuliv.pdfIn PDF document text
    • https://24b051fc-04af-4e2d-8b9e-4e75c06063ec.filesusr.com/ugd/1a488c_9f0abcd513b94aa7a6bddb40ecb07868.pdf?index=trueIn PDF document text
    • http://muvusibose.rf.gd/absceso_hepatico_manejo_quirurgico.pdfIn PDF document text
    • http://xupudajiwozov.epizy.com/the_bartender_s_bible_free_download.pdfIn PDF document text
    • http://muwadobekele.rf.gd/banojogilijifawike.pdfIn PDF document text
    • http://makeromevoju.rf.gd/technical_business_analyst_interview_questions_and_answers.pdfIn PDF document text
    • http://vufudaz.rf.gd/89796701411.pdfIn PDF document text
    • http://rinexabe.rf.gd/malayala_manorama_epaper_today_download.pdfIn PDF document text

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