Malicious PDF — malware analysis report

Static analysis result for SHA-256 76cb1231ccf73657…

MALICIOUS

PDF

57.2 KB Created: 2021-05-23 23:32:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5272e28bba09ebe267231d838fdfc4d8 SHA-1: 510400d56cfe877ce33897e9653e25148afb6cd4 SHA-256: 76cb1231ccf73657ea738b538d98cab54f77a2fb743f9da08f2f38c7cadfe598
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The PDF contains numerous links pointing to compromised websites, suggesting it's part of a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics suggest this PDF is likely used to distribute malware or facilitate phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6956

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://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/1f4f3kbu3ql9u5bbm1oa341obg/dobaziwi.pdf
    • https://www.penyembuhanholistikreiki.com/wp-content/plugins/formcraft/file-upload/server/content/files/160834ab963163---20117374819.pdf
    • http://xn----8sbxab3abskk3a2j.xn--p1ai/media/file/49699717961.pdf
    • https://useoneconvo.com/wp-content/plugins/super-forms/uploads/php/files/e4f6c37de7ddedc23660ea86704488d9/jepajike.pdf
    • http://111-orte.de/testarea/cwsCMSlight/media/files/ketozurodafixa.pdf
    • http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607e3e24817bb---86338088068.pdf
    • https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/tso9m5misjs3mht76cgvu704jm/xigapawemopo.pdf
    • https://smilepath.com.au/wp-content/plugins/super-forms/uploads/php/files/75eeb7cc0479115a6651fb771386bce0/xowadikorim.pdf
    • http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/16071221219aab---67666628793.pdf
    • https://www.advids.io/wp-content/plugins/formcraft/file-upload/server/content/files/160881e49f3e23---ganamepovesamemogodi.pdf
    • https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/f758ce9302153c0779855a0682200e98/pezovusosixifet.pdf
    • https://vuaship.com/wp-content/plugins/super-forms/uploads/php/files/2k8upklq6ralbs3j6e3cetd908/47902181664.pdf
    • https://djhelaly.com/wp-content/plugins/super-forms/uploads/php/files/be8b66b7bd9e47bf7e820e5f07719d52/74952935318.pdf
    • https://www.auditek.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16072fb4738098---99385192664.pdf
    • http://mobydick-band.de/fckdata/file/vupoxasubatatolat.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=gym+exercise+book+pdf

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