Malicious PDF — malware analysis report

Static analysis result for SHA-256 b951dae9055b19d2…

MALICIOUS

PDF

88.8 KB Created: 2021-09-07 09:13:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: d0e84f91f47bb01a5156cf775f16bfe3 SHA-1: e24b17507222f50150f1dfc53ee7833a186a12ad SHA-256: b951dae9055b19d29f1d6e0019b8ecc47cd25d469d5cd523789a0b871020b35f
124 Risk Score

Malware Insights

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

The PDF contains numerous links pointing to compromised websites, indicating a phishing or redirection scheme. The ClamAV detection as 'Pdf.Phishing.Trojan' strongly suggests malicious intent. The file's structure as a link farm on disposable hosting further supports its role in directing users to potentially malicious second-stage content.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.4006

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://taperagi.com/contents//files/waxonagu.pdf In PDF document text
    • https://www.tifdip.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608362aca1180---zaruwanodurulerupufodu.pdfIn PDF document text
    • https://refundsrefunds.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b30698404a---rigoxuzomulolijakatopexa.pdfIn PDF document text
    • https://resttour.com/images/userfiles/files/96549405595.pdfIn PDF document text
    • http://bartuceviri.com/userfiles/file/takoninasi.pdfIn PDF document text
    • https://pakianco.ir/data/image/uploads/news/files/nifizebimesodawi.pdfIn PDF document text
    • https://infosantiere.ro/userfiles/file/nupebuzukoxosunuzitiniv.pdfIn PDF document text
    • https://telenovella-bg.com/files/18966172112.pdfIn PDF document text
    • https://apteka-wratislavia.pl/halatecza/userfiles/file/88081803786.pdfIn PDF document text
    • http://fpsh1980.com/clients/7/7d/7de5299bd6bdc19cdd6b275c058e9c4a/File/51633652515.pdfIn PDF document text
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c1483312202---vexuzibenapupuriraruzeziv.pdfIn PDF document text
    • https://langumeistras.lt/i/File/19551155648.pdfIn PDF document text
    • https://robertmatzuzi-massagetherapist.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160922cef0ef44---61001286757.pdfIn PDF document text
    • http://www.valathors.com/ckfinder/userfiles/files/danutuwotaferox.pdfIn PDF document text
    • http://dlzj.net/upload/files/20210628013519930871.pdfIn PDF document text
    • http://glovimex.com/uploads/ckfinder/files/67520930467.pdfIn PDF document text
    • http://119pump.net/d/files/2952359055.pdfIn PDF document text
    • http://casier-a-bouteilles.com/file/puruxupewasufupurogo.pdfIn PDF document text
    • https://totalmediasolutions.ae/ckfinder/userfiles/files/nekulezaxiga.pdfIn PDF document text
    • https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/18ec4973ba7ee393be6a98841b0795ff/lidomupafafidugijareme.pdfIn PDF document text
    • https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607046ad09980---gilotejasesazedezux.pdfIn PDF document text
    • http://www.perchegouet.com/ckfinder/userfiles/files/xapututaj.pdfIn PDF document text
    • http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1608f667ede66b---32852360650.pdfIn PDF document text
    • http://clair-environnement.eu/catalogue_dynamique/file/72138574090.pdfIn PDF document text
    • http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160e2808108c40---jofaborikex.pdfIn PDF document text
    • http://4reality.cz/userfiles/files/44817123700.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=cube+notations+pdfPDF link annotation

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