Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7882ef43939d74b…

MALICIOUS

PDF

55.4 KB Created: 2021-09-08 19:33:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 5319b6eb5bf18f26036bb4dea7b25786 SHA-1: 560470d393cc4093147c2f347369d3501880575f SHA-256: f7882ef43939d74b93762376d52d645e1e842d13af6eb35f2b101ce0dba6e9bc
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious content. The PDF contains numerous external URIs and is identified as a link farm hosted on disposable domains, suggesting a phishing or malware distribution attempt. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7337

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://ww150006.linebot.net/upfile/files/20210901181308.pdf In PDF document text
    • http://www.contal-farmer.com/uploads/files/25307833275.pdfIn PDF document text
    • http://flixgolf.com/ckeditor/ckfinder/userfiles/files/12684084568.pdfIn PDF document text
    • http://emaaravm.net/upload/files/3033605598.pdfIn PDF document text
    • http://airzo.net/userData/board/file/36895896101.pdfIn PDF document text
    • http://fonnepal.org/userfiles/file/depowaponagiralenerebi.pdfIn PDF document text
    • http://lica-mpt.it/userfiles/files/tulow.pdfIn PDF document text
    • https://ww150002.linebot.net/upfile/files/20210904090138.pdfIn PDF document text
    • https://tresonance.org/uploadfiles/69138976435.pdfIn PDF document text
    • https://magyar-logyogyasz.hu/fileok/file/39840869759.pdfIn PDF document text
    • http://sakuragiramenandsushi.com/uploads/files/90438882932.pdfIn PDF document text
    • https://ukmriptek.org/codeIgniter-hmvc/userfiles/files/rewon.pdfIn PDF document text
    • http://tweddlefoto.com/files_contenidos/upload/files/jegimu.pdfIn PDF document text
    • http://shamayachts.com/upload/file/24608905726.pdfIn PDF document text
    • http://provia-events.de/pics/fotos/1/file/57634746377.pdfIn PDF document text
    • http://herodumpsterrental.com/wp-content/plugins/super-forms/uploads/php/files/8c7556bbd2b403f67630bff713c120c1/9030307171.pdfIn PDF document text
    • http://maxbrio.kr/files/files/fofopetirime.pdfIn PDF document text
    • http://qamsar.org/userfiles/files/robefifiselaj.pdfIn PDF document text
    • http://vagtteam.com/userfiles/Files/vosefawaxalamiwisekof.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=problemas+funcion+lineal+pdfPDF link annotation

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