Malicious PDF — malware analysis report

Static analysis result for SHA-256 f722075d4dfeab8b…

MALICIOUS

PDF

47.7 KB Created: 2021-09-11 23:57:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-02
MD5: 119be81a4aae02e749198641be04a685 SHA-1: c5d41a929aac9788dfbbd79345fb610e80db1f3b SHA-256: f722075d4dfeab8bd65c116f6489bf30db113e66d45f0fd8bd146deaf8249c47
202 Risk Score

Malware Insights

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

This PDF document contains embedded JavaScript and is flagged by multiple heuristics as malicious, including a remote support tool lure. The document's structure and embedded links suggest it is part of a phishing campaign aiming to trick users into installing potentially unwanted or malicious software. The presence of JavaScript indicates an attempt to execute code within the PDF viewer.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7355

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://birizgardenhotel.com/userfiles/file/78672511993.pdf In PDF document text
    • https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136d2d794a6d---fuwonewaxixine.pdfIn PDF document text
    • http://www.motocams.cz/ckfinder/userfiles/files/wojumupiserekurol.pdfIn PDF document text
    • https://dragonexpressml.com/userfiles/files/wezede.pdfIn PDF document text
    • https://silky.ae/images/bulk_images/files/begirijom.pdfIn PDF document text
    • https://volpatoebrum.com.br/_common/admin/scripts/ckfinder/userfiles/files/37637103608.pdfIn PDF document text
    • http://vmkmsz.hu/userfiles/file/mebodepejogajinirolevid.pdfIn PDF document text
    • http://telegid.tv/userfiles/file/34264161161.pdfIn PDF document text
    • https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/4f2a6c1ff49f182e8b1f05a809bbd80f/88820451267.pdfIn PDF document text
    • https://neksav.com/upload/ckfinder/files/4431160062.pdfIn PDF document text
    • http://wpklaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/24103082500.pdfIn PDF document text
    • https://www.superioreagle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bac57dbd6b---82242070174.pdfIn PDF document text
    • http://commissioncollectionlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/24770770754.pdfIn PDF document text
    • http://strandedtattoo.info/file/linedenalaloxi.pdfIn PDF document text
    • https://corumosmanlimakina.com/js/ckfinder/userfiles/files/xamoxawamak.pdfIn PDF document text
    • http://polimak.pl/userfiles/file/budikoviwalozezugelipi.pdfIn PDF document text
    • http://chenruichem.com/upload/files/61785060513.pdfIn PDF document text
    • http://kalkulacka-hypo.cz/userfiles/files/datagovodozilokixuza.pdfIn PDF document text
    • http://cukiernia-waltar.pl/qcms/userfiles/file/gaferadefedofotubone.pdfIn PDF document text
    • https://ptogel1.com/contents/files/puvaz.pdfIn PDF document text
    • http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd8264a252---35669030537.pdfIn PDF document text
    • http://zlzljc.com/uploadfile/file///2021090201485679.pdfIn PDF document text
    • http://hengtaixin.com/HangShun/ckfinder/userfiles/files/suwolirebafogexuvisuk.pdfIn PDF document text
    • http://oio.cn/uploadfiles/files/8995464510.pdfIn PDF document text
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/ec0eb77da7188124efe2ffce71a9a77e/suvekukokidejifene.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=download+teamviewer+for+android+tabletPDF link annotation

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