Malicious PDF — malware analysis report

Static analysis result for SHA-256 e275473301494ba2…

MALICIOUS

PDF

73.4 KB Created: 2021-04-30 10:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e41b2e4d452b52d36749d5bf70ac466 SHA-1: 559635177fe75ad3fd7d378dde3e47d82cf159db SHA-256: e275473301494ba24fab09bb3f936d71a520dcb96d7e54f092e2e11cdf47637f
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a link farm pointing to multiple compromised WordPress sites, likely intended to host and distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the PDF structure and heuristic firings suggest it's designed to exploit vulnerabilities or trick users into downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8245

Heuristics 4

  • 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.
  • 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://christembassydocklands.org/wp-content/plugins/super-forms/uploads/php/files/2507522715fe1cb2e8a334393e68f47e/ritozimoni.pdf
    • https://www.rydalmereprestige.com.au/wp-content/plugins/super-forms/uploads/php/files/a4ifai1vvr4uvscag5umj9jjdu/gepedasu.pdf
    • http://elenasteele.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cae06e2803---bijalafosorigafaxinigipi.pdf
    • http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/k3q5rbd3h71t374f2o09l42bi5/62335528108.pdf
    • https://k-kompany.ru/wp-content/plugins/super-forms/uploads/php/files/b82401de1691820fc271f887827fb6f9/91833102888.pdf
    • http://hi-reid-solutions.com/wp-content/plugins/super-forms/uploads/php/files/697ce6b6e65985b9b56d43ff15ad4913/zibamaluwobipoxuzozipa.pdf
    • https://www.plsok.com/wp-content/plugins/super-forms/uploads/php/files/f7d6ab378db8fd7673da96cbdfd777d9/monipugexigedunupefikix.pdf
    • https://tecsal.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16082e7d804f28---gupox.pdf
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/51523b6106211f6a4fff792639d438f0/sixedemuresakulani.pdf
    • http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1607d7dad67224---98188953513.pdf
    • https://www.nuyew.academy/wp-content/plugins/super-forms/uploads/php/files/0c9a67e42ebe530ce295439dcda359f2/jeruxa.pdf
    • http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3b7200bf4---40411092530.pdf
    • https://completecollegestrategies.com/wp-content/plugins/super-forms/uploads/php/files/6602655c1b8ec5be0f4098490e0d9270/sajujipunifewirogisa.pdf
    • https://hoffmanowska.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607e56ea6b4b8---vedanotipufodo.pdf
    • https://monacollection.ua/wp-content/plugins/super-forms/uploads/php/files/373c93a817e5cb975d77bbe318926526/9039049120.pdf
    • http://opalsolar.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3db6129ab---71863644407.pdf
    • https://wentworthre.com/wp-content/plugins/super-forms/uploads/php/files/6accdcd31c7c40d48e58deda44ab76cd/wiwaz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/zMnd8XtcwSM/uplcv?utm_term=destiny+2+hunter+build+guide
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f243.bin
d0e0bd64aa327eaea0c3fcc3d4c54529932546dc872ecc3c7495d95a2c1554db		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF243 5248 bytes
font_01_sfnt_off00010424.bin
d5a212acd4462cbcee7b61b094b39c4e93832bd1f05fd3595bad84a7908dfd14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10424 11644 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.