Malicious PDF — malware analysis report

Static analysis result for SHA-256 3099bbeb03b6a907…

MALICIOUS

PDF

66.7 KB Created: 2021-09-03 05:44:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-12
MD5: 5342cd8ba0b7edc5b197265926248dcc SHA-1: 77679996deea31fa3d7f1ee0d9a3fa3449e49130 SHA-256: 3099bbeb03b6a9073ae0df104e14fae2d18871e5293aa36f7d4bd36b0ac5ab74
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting. These links are likely used to redirect users to malicious content or phishing pages. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a pattern of using such sites for link farming, suggesting an attempt to obscure the final malicious destination.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3806

Heuristics 5

  • 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://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/99328650176.pdf In PDF document text
    • http://www.jacenter.org/js/ckfinder/userfiles/files/jofogodige.pdfIn PDF document text
    • http://bookblog.kr/data/file/files/zowiwasej.pdfIn PDF document text
    • http://xn----8sbnbd9chja.xn--p1ai/userfiles/file/74740396498.pdfIn PDF document text
    • http://erkerlaender.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a6e05e53691---modoje.pdfIn PDF document text
    • https://bbpartner.cz/userfiles/file/76724776924.pdfIn PDF document text
    • https://ijpdua.com/contents//files/besenupezumivogi.pdfIn PDF document text
    • http://sanyosushiglendora.com/uploads/files/xijuzuvobug.pdfIn PDF document text
    • https://sip7.pl/autoinstalator/sip7.online/wp-content/plugins/super-forms/uploads/php/files/9a3c28e1a7ebb93cd7fb12a27506a8c0/25361045787.pdfIn PDF document text
    • https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16078def5991bb---witeza.pdfIn PDF document text
    • http://comp-art.ru/userfiles/file/wuvip.pdfIn PDF document text
    • http://scheiden-maassluis.nl/uploads//file/69718146034.pdfIn PDF document text
    • http://mfcwestenkwartier.nl/beta/userfiles/file/batilobekolewufi.pdfIn PDF document text
    • http://trongtinpc.com/luutru/files/22613555729.pdfIn PDF document text
    • http://allegroescrow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac8f3421e03---56083665616.pdfIn PDF document text
    • https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/ermcs00u5ubpe6c2d2791h9jec/rapidobolokironunalukobin.pdfIn PDF document text
    • http://stolizstekla.ru/userfiles/file/76499574605.pdfIn PDF document text
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/c60ab483deb34ad31d05f81d416d1f5e/23170823677.pdfIn PDF document text
    • http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b2adf13c3e3---vidamijepenano.pdfIn PDF document text
    • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f8d7d77ce9---jezidazatebori.pdfIn PDF document text
    • http://smartcookieacademy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608abd0220489---82466317495.pdfIn PDF document text
    • http://champaigncursillo.com/userfiles/file/50507422282.pdfIn PDF document text
    • https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160eca15a7c3de---38980763279.pdfIn PDF document text
    • http://forglass.sk/userfiles/file/lanenirejewabinojud.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=tally+short+key+in+pdfPDF link annotation

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