Malicious PDF — malware analysis report

Static analysis result for SHA-256 54d22d9b88e7eec3…

MALICIOUS

PDF

68.4 KB Created: 2021-06-16 10:50:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 38cbb71a19a779272772b3bcbb952894 SHA-1: e3f6dd47199276175f1078977b4e852e47cce9e7 SHA-256: 54d22d9b88e7eec39e75441fbf0034856511d6519e32196c9e4f7a56a1175c9f
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is classified as malicious by ML and ClamAV, indicating a phishing or trojan threat. It contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting a link farm designed to redirect users to malicious content. The document's content, presented as a summary of '7 Habits of Highly Effective People', is a common lure for phishing attacks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7220

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 https://synerhu.ru/uplcv?utm_term=7+habits+of+highly+effective+person+by+stephen+covey+summary
    • http://drukarnia-skawina.pl/app/webroot/media/files/jasogarogunax.pdf
    • https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/jpqrfio8tag26ne467f3d9s6ro/22892541551.pdf
    • https://www.sanier.pl/wp-content/plugins/super-forms/uploads/php/files/q8s0tt2ubo8r3149l4lrksla9k/26475193512.pdf
    • http://hk-dcc.com/wp-content/plugins/super-forms/uploads/php/files/7e0ia4gdhtu17niuqf01vcq9rr/zelanotoxemekame.pdf
    • https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/9888c211a034a21ff4050753435f501a/84449928454.pdf
    • https://www.ideakliniksisli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160af91cd3583d---69920729543.pdf
    • https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608cfc8b4f2f1---dorovenikirilubixe.pdf
    • https://siyata.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160c74f56d3554---tafilozotojejaxo.pdf
    • http://mwflower.com/upimagesfile/%5C/bosix.pdf
    • https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4c676a0c7e496c39bfb8c93748dc1cf2/96112366377.pdf
    • http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/o7gn5rih77fp20a1nr9hmbnbb6/nisidifikizazazolufo.pdf
    • http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607612ad09e96---32554498637.pdf
    • http://barcelonahotel.vn/UpLoadFile/file/74168018318.pdf