Malicious PDF — malware analysis report

Static analysis result for SHA-256 363704aaf6634185…

MALICIOUS

PDF

48.0 KB Created: 2021-09-16 22:54:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: 6f201501c1fb020c2c58578be1d3d5da SHA-1: 6e2192d10f1f33956e7f7c5bd4b77425700e4634 SHA-256: 363704aaf6634185fc3ea44180ddf9f1998b8028b73143ee1bfaeddd3663a28d
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that form a link farm, directing users to various external sites, some of which are hosted on compromised WordPress installations or disposable domains. The primary function appears to be redirecting users to potentially malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7493

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://huntic.ru/uplcv?utm_term=redmi+note+9+document+scanner PDF link annotation
    • http://richmore.kr/uploadfile/fckeditor/file/fikurifufikixalubafa.pdfIn PDF document text
    • http://shipagents.nl/uploadfiles/file/goliwanoladuwiguza.pdfIn PDF document text
    • http://marleenjansen.nl/images/uploadfiles/vetukusixamogi.pdfIn PDF document text
    • http://hanahana.vn/media/ftp/file/toxipezogujez.pdfIn PDF document text
    • http://reopen911.info/media/file/67427801544.pdfIn PDF document text
    • https://qboardapp.com/wp-content/plugins/super-forms/uploads/php/files/aeb47520395b951fdb2f2aa58ac9bc34/rakexuwijir.pdfIn PDF document text
    • http://phutungvespaco.com/luutru/files/goromadetik.pdfIn PDF document text
    • https://jurvamartin.com/userfiles/file/1374725533.pdfIn PDF document text
    • https://gtnet-engine.com/ckfinder/userfiles/files/xipajipinadodonedaxigose.pdfIn PDF document text
    • http://villkasz.hu/editor_up/xovimatubesim.pdfIn PDF document text
    • https://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/aec7ce014a837351c38f6aad7b448751/zuzobajimul.pdfIn PDF document text
    • https://digireg.org/upload/mawidenapajigoxuzus.pdfIn PDF document text
    • https://argumentua.com/i/file/74967688078.pdfIn PDF document text
    • http://vom-ragnaroek.de/uploads/file/fasabawekufimelepesevu.pdfIn PDF document text
    • https://sesconbs.org.br/ckfinder/userfiles/files/87417369272.pdfIn PDF document text
    • http://ascensionchina.com/userfiles/file/76457480356.pdfIn PDF document text
    • https://narellesastro.com/userfiles/files/94880775329.pdfIn PDF document text
    • http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/cc71247757210594c3b56a3a1d6a2390/15156728227.pdfIn PDF document text
    • http://uran-berlin.com/userfiles/file/5489191179.pdfIn PDF document text
    • https://laetitiabernard.fr/images/file/65919163377.pdfIn PDF document text
    • http://cameradungphat.com/uploads/files/kudumuporaku.pdfIn PDF document text
    • https://warungmimpishio2.com/contents/files/1119949382.pdfIn PDF document text
    • https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16132117aade30---23815004319.pdfIn PDF document text
    • http://serenetour.com/image/upload/File/darujejozibojulafo.pdfIn PDF document text
    • https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ec9f5a3cf2---15811123875.pdfIn PDF document text