Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6dd86541e8b086…

MALICIOUS

PDF

66.7 KB Created: 2021-04-30 18:00:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 372c1045c2949efb75835fa44dc7c7b8 SHA-1: 76bae6f2ac022cc672a82dda408cab8e38abc81a SHA-256: 8f6dd86541e8b086ecaa0eb2bbc2d44aa46a8ede63916c2a7c28d6c9ce339bb7
94 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains embedded URLs that likely lead to further malicious content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7248

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16081d9490fc8b---54724460815.pdf
    • https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/160863f90b8eb8---mafoxalanurux.pdf
    • http://xn--clinicaquirogavilario-vbc.com/wp-content/plugins/super-forms/uploads/php/files/td9v2lh476n5vms5tnbjq80tt4/79909794895.pdf
    • http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f60e6ed2fb---76102675064.pdf
    • http://www.gainerwindows.ca/wp-content/plugins/super-forms/uploads/php/files/q4qfu8tpqlsgic6pftftp8v197/runugufoxabufutikuli.pdf
    • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160860d4463644---zeniziwazuguminub.pdf
    • https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/ga7seh55rla8m3pfcb551qnbup/97257745157.pdf
    • http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085f2729021d---44152457115.pdf
    • http://www.airportlimofortlauderdale.net/wp-content/plugins/formcraft/file-upload/server/content/files/1607bc5c262d59---fobitorujenovonefijobusud.pdf
    • http://aaaexpressac.com/userfiles/file/kinelara.pdf
    • http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1a8c9a447---12550509908.pdf
    • http://orgue-chantepie.info/FCKeditor/upload/file/41817408646.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/skout/mBVl/~3/6naE_Nh8_CY/uplcv?utm_term=anchoring+script+for+song+performance+in+school
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d144.bin
15e95532e89622ea49dc8dde1347b72c9261dc8aee3daeb4735210d00ee517c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD144 5208 bytes
font_01_sfnt_off0000e2c1.bin
311b7f7aab9c80208a45af04b5b905445e5805b9a38ff920ce60afc951257464		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2C1 10284 bytes

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