Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdee74f43b7f05f6…

MALICIOUS

PDF

47.0 KB Created: 2021-09-23 01:57:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-04
MD5: 892c308810d58691064707c8fcbc9cba SHA-1: 9e0e011e5f8106d4b63c7a6a3e2d1d36ce70bcee SHA-256: fdee74f43b7f05f6ea5e296eb803995918e80d05a457580b7f6766b05ff40809
124 Risk Score

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 0.6646

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 http://joltiy.ru/uploads/files/xexobapetixavu.pdf In PDF document text
    • http://dalnoboy.org/data/filestorage/upload/files/gobudojuwijatezeline.pdfIn PDF document text
    • https://luatkhangthai.vn/upload/fck/file/28639699794.pdfIn PDF document text
    • https://premium-house.uz/images/file/pobaxad.pdfIn PDF document text
    • http://custom-mugs-factory.com/uploadfile/files/5336716347.pdfIn PDF document text
    • https://webrobogo.hu/kepek/64564810164.pdfIn PDF document text
    • http://fteq.ru/files/file/37850524766.pdfIn PDF document text
    • http://napiarsaigh.com/images/1873914294.pdfIn PDF document text
    • http://laibros.com/ckeditor/userfiles/files/90023493330.pdfIn PDF document text
    • https://autonoleggioassereto.com/file/67879236806.pdfIn PDF document text
    • http://ansatrans.ru/admin/ckfinder/userfiles/files/bavadewugevunuvaz.pdfIn PDF document text
    • http://lindseyderence.com/userfiles/files/fokevosevok.pdfIn PDF document text
    • https://i-intelli.com/ckfinder/userfiles/files/57340115355.pdfIn PDF document text
    • http://ahkjt.com/upfile/file/tixirokokezivuzemefizew.pdfIn PDF document text
    • http://digitalpolicycouncil.com/imagenes/file/28068507870.pdfIn PDF document text
    • https://gujaratisamajparis.org/upload/files/28532048678.pdfIn PDF document text
    • https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/490c38fe99fed0406850677f7d5d6b89/79283940976.pdfIn PDF document text
    • http://metalzilemboeventi.com/userfiles/files/padezaregu.pdfIn PDF document text
    • http://rtm-plus.com/ckfinder/userfiles/files/96405776913.pdfIn PDF document text
    • http://www.kyousei-fukushi.or.jp/system/ckfinder/userfiles/files/80027251541.pdfIn PDF document text
    • https://relaxationplusmn.com/wp-content/plugins/super-forms/uploads/php/files/dd69017a0618a4972582a013858a2685/20889442217.pdfIn PDF document text
    • http://marleenjansen.nl/images/uploadfiles/vivusuwoxudejij.pdfIn PDF document text
    • https://mudraconsultancy.com/uploads/files/webesofitusaz.pdfIn PDF document text
    • http://cloudinfo01.smartevolve.com/images/ckeditor/files/tasikivixiva.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=calculus+early+transcendentals+9th+edition+by+james+stewart+pdfPDF link annotation