Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b4568b503f8233d…

MALICIOUS

PDF

64.0 KB Created: 2021-08-21 08:18:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: 1dccfb89c3c91d2cd1d6e5d93189d810 SHA-1: 989376e76b0650c8b71cb158f78275c6bf0aefe9 SHA-256: 3b4568b503f8233d6edcd0d98ceaec83555d8937a6b34dd89f73c16f4d6fc33e
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains embedded JavaScript and numerous links pointing to external PDF files. Several of these links lead to compromised WordPress sites or disposable hosting, and one points directly to an IP address, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to deliver a secondary payload or phish credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9885

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
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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 https://g3az.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f54a5a6419---63031655618.pdf In PDF document text
    • http://178.62.148.222:300/ckeditor/ckfinder/userfiles/files/segudodifugi.pdfPDF link annotation
    • https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/lt5n79rgsm65mfge0biorluqii/zubepisoverul.pdfIn PDF document text
    • http://pusheng168.com/uploadfiles/20210804024152.pdfIn PDF document text
    • http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/160746e1f61943---tekalevugozisuduwabobit.pdfIn PDF document text
    • https://www.tonygssoulfood.com/wp-content/plugins/super-forms/uploads/php/files/840c6abb07a76c4842c8c52f45618b7d/godopedatojedarut.pdfIn PDF document text
    • http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093416345119---zekenisen.pdfIn PDF document text
    • http://ecogestval.com/userfiles/file/63899866294.pdfIn PDF document text
    • http://files.ibiza-ferien.de/file/2228562303.pdfIn PDF document text
    • http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608ec6778b57e---47707086477.pdfIn PDF document text
    • https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/7be943b1249b147cc5349be8467ba141/34038065126.pdfIn PDF document text
    • https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/f46b728ecc71425a56661b328da8c978/60768789237.pdfIn PDF document text
    • https://mavismanagement.com/wp-content/plugins/formcraft/file-upload/server/content/files/160848f67f3608---fixawubenosevesigizekeloz.pdfIn PDF document text
    • http://dangkyidol.com/wp-content/plugins/super-forms/uploads/php/files/411hlf07p5nh7n80is6b8tn2kp/40232464342.pdfIn PDF document text
    • https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/94d587b83c44662a37e7c9f4b620cf41/baxuwik.pdfIn PDF document text
    • http://a-aqua.fr/ressource/site-image/files/3491779109.pdfIn PDF document text
    • http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16070c404cff73---wanekepiboderak.pdfIn PDF document text
    • https://egyptsuntours.com/userfiles/files/93884452660.pdfIn PDF document text
    • http://akiyastyle.com/app/webroot/js/ckfinder/userfiles/files/44199757328.pdfIn PDF document text
    • https://zahnersatz.pl/userfiles/files/23952474937.pdfIn PDF document text
    • https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/b0b57915a76500fde0df610bace0ca9c/34882113440.pdfIn PDF document text
    • http://digifast.cz/userfiles/vixobixuridi.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=how+to+use+emeril+lagasse+air+fryer+rotisseriePDF link annotation

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