Malicious PDF — malware analysis report

Static analysis result for SHA-256 36e7d8e93710353d…

MALICIOUS

PDF

164.0 KB Created: 2021-08-17 02:56:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29
MD5: 6e1a20a23b6c4b49ed8ab28a214c3de8 SHA-1: d87293c037e06724e2adb35ebd42c450f01f5692 SHA-256: 36e7d8e93710353d3c3667442b9d69d2c4316752804264ae552414023b290644
154 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to compromised websites or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ClamAV detection and ML classifier further support its malicious nature. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9303

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 http://essuances.com/ckfinder/userfiles/files/jobezulil.pdf In PDF document text
    • http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f5bccfd3b8c---1019841356.pdfIn PDF document text
    • http://pescepiana.eu/userfiles/files/93121164338.pdfIn PDF document text
    • https://samarpanbharat.org/trila/userfiles/file/5031942933.pdfIn PDF document text
    • https://www.crossfitparamaribo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16107e86be5da1---9997511652.pdfIn PDF document text
    • https://postscriptproductions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090b63931287---nifofib.pdfIn PDF document text
    • https://uniontend.com/userfiles/files/80754823891.pdfIn PDF document text
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/59495321a960c477d998af1db12008d1/pututuvokizegakabepupap.pdfIn PDF document text
    • http://polishingmarblefloor.it/userfiles/files/xidularigorixefomikuju.pdfIn PDF document text
    • http://nfc.soo.jp/file/64023594946.pdfIn PDF document text
    • http://eros-arena-reutlingen.de/eros/userfiles/file/zogilesevakumekojagib.pdfIn PDF document text
    • http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607246d669f8f---xipebavanadejonaxi.pdfIn PDF document text
    • https://chezgregoire.fr/userfiles/31841771901.pdfIn PDF document text
    • https://anzmrrn.org/wp-content/plugins/formcraft/file-upload/server/content/files/160bfdc4e1f52a---dozigojuneworoso.pdfIn PDF document text
    • http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/bb58aldlaodd2fv5q91flhlfb4/51042597510.pdfIn PDF document text
    • https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/734c63e0b49c539dc3689c6f0ffe2cee/23001343353.pdfIn PDF document text
    • https://www.partyshuttlebus.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16094dfee5fc6c---kobiwabasazekoxe.pdfIn PDF document text
    • http://abwlargo.com/uploads/files/33323052343.pdfIn PDF document text
    • https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160797a4cb00b2---voruxewasewidexik.pdfIn PDF document text
    • http://johnmichaelharrisonlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wurixaxudibajafubomimo.pdfIn PDF document text
    • http://geriatriccarenewjersey.com/userfiles/files/57351153486.pdfIn PDF document text
    • http://konsultacjenaukowe.eu/Upload/file/vulevufumuxum.pdfIn PDF document text
    • https://www.hagensmarketing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f5d7f29b3---nosavimepo.pdfIn PDF document text
    • http://www.nisbd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160759ac2a94c0---63411793443.pdfIn PDF document text
    • https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1609a06be02c28---dawefapozazutapavo.pdfIn PDF document text
    • https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=los+7+habitos+de+la+gente+altamente+efectiva+libro+gratisPDF link annotation

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