Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9183566a47ce93a…

MALICIOUS

PDF

79.0 KB Created: 2021-07-28 10:28:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 5cc30207ed36fbcdaffa2c2e6c5f4dee SHA-1: 0990fa3f4f5acc80c600872b2a99d37d310e9183 SHA-256: a9183566a47ce93a57f3eff0ac3816b605097d87c6195435db4d3840539af2a1
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to numerous compromised WordPress upload directories, suggesting an attempt to distribute malicious content or phish users. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9828

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://thriveelearning.com/wp-content/plugins/super-forms/uploads/php/files/1990e99f8a94e54cfcfe41e4fcaf3046/tesor.pdf In PDF document text
    • http://nuovojob.com/userfiles/files/53581612310.pdfIn PDF document text
    • https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/bdu8j1h13051rbope7ivtvr4aa/29227371383.pdfIn PDF document text
    • http://dossalas.com/wp-content/plugins/super-forms/uploads/php/files/ac6adda54e7b97f635247217374a0b15/10156859675.pdfIn PDF document text
    • https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/aa3190d305bc026da24a854db7444c8a/ruramatuwabozizomuta.pdfIn PDF document text
    • http://www.luminicaambiental.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e371baee4d9---69978779823.pdfIn PDF document text
    • https://otelnamore.com/wp-content/plugins/super-forms/uploads/php/files/c18bd726ac3d00bb014de4439f3f3096/22130993348.pdfIn PDF document text
    • http://better-pharma.com/images/file/files/84438536184.pdfIn PDF document text
    • https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160dfad5b1a5a7---kituju.pdfIn PDF document text
    • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/8bd3e5296eeee87f57f7e953dad858cd/zujisir.pdfIn PDF document text
    • http://imhyuk.com/imhyukeditor/userfile/file/miwubizolasazenivow.pdfIn PDF document text
    • http://brothersaluminium.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/1609d16547a052---segopipami.pdfIn PDF document text
    • http://www.trimbleexpress.sk/wp-content/plugins/formcraft/file-upload/server/content/files/16084a62070a8a---nofefaminexugerevusod.pdfIn PDF document text
    • http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b532ec08898---96609301575.pdfIn PDF document text
    • https://invest.pl/userfiles/file/buvezuwusajifadepirofida.pdfIn PDF document text
    • http://globalroomplus.com/bot/ckfinder/uf/files/42352785179.pdfIn PDF document text
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607138e0a994b---tukusivazaritakepuvimikon.pdfIn PDF document text
    • http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb403eb886---54503906138.pdfIn PDF document text
    • https://www.temsilcisitesi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4e7c8a225---45639983273.pdfIn PDF document text
    • http://lordbeaverbrook1973.com/clients/76835/File/23882865680.pdfIn PDF document text
    • http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1607c30a05074d---28996034194.pdfIn PDF document text
    • https://shotclock.ca/wp-content/plugins/super-forms/uploads/php/files/f8328706cbfba9b3bff8bb489138034b/nijutoxuzuvuzefed.pdfIn PDF document text
    • https://irastuff.com/admin/ckfinder/uploads/files/73604424416.pdfIn PDF document text
    • https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/e521150be584a57efa257fe34306dbf9/58202635829.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/PmAiG5ZyT-k/uplcv?utm_term=how+to+add+song+bot+in+discord+mobilePDF link annotation
    • http://e1pl2.nazwa.pl/busy/fotki/file/56603129904.pdfIn PDF document text

Open this report in the interactive analyzer, or submit your own file for analysis.