Malicious PDF — malware analysis report

Static analysis result for SHA-256 73001a0f746da526…

MALICIOUS

PDF

55.8 KB Created: 2021-05-23 15:50:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 17f40ddd942bcbfa25a456c9c2c9c3c0 SHA-1: a6a53d23648491e226a5b0f50a264f833fcd3692 SHA-256: 73001a0f746da526b1e8cf4113e88eca1df7d5e3cc029af85839871a257d0c0e
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a link farm or SEO poisoning attack. The embedded URLs are likely intended to redirect users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7086

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://www.alapan.org/fckimages/file/39303002315.pdf
    • https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a4481deab6---towefalo.pdf
    • https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/d4763a034ec9faba957c753fa7ea98dc/4675858410.pdf
    • https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/e29a6453c132c8791199f0612bc6bcc7/50719173543.pdf
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1607295acd33d0---81175759638.pdf
    • https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/fc54aeed7802e8d644ebbdbb4327a8be/17880000802.pdf
    • https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/43cf327f772f565403f15f4e4269bc1b/77122293656.pdf
    • https://humanistbeauty.com/wp-content/plugins/super-forms/uploads/php/files/j3regnf5t7stg5mlac4a23lh20/6431069370.pdf
    • https://area34.info/wp-content/plugins/super-forms/uploads/php/files/teujo1i48i3rmcsko5q188u1t2/36649438800.pdf
    • https://infravoip.com/wp-content/plugins/super-forms/uploads/php/files/20fd668bb3e63a423b9137e67681fd5b/66612318007.pdf
    • https://kede.org/userfiles/file/85225152693.pdf
    • https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/30d9c9ff3f3140df389bc6e59683d67e/tapat.pdf
    • https://aryaayur.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079f3f0f3b54---tosutuwatoto.pdf
    • https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607341013b14d---puzovepibugaradiz.pdf
    • http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a4135e847f5---gafuvonexadulaj.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=engineering+mechanics+statics+meriam+and+kraige+5th+ed+solutions+pdf