Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cdd5627a271bcc5…

MALICIOUS

PDF

69.8 KB Created: 2021-05-09 21:18:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42313ad586731d99882cc6fee88d45fc SHA-1: 7069ecf28097b500959f5ec0f215d1a080cf2105 SHA-256: 5cdd5627a271bcc5592affcb821c163ab6caebc42e391faab59e5ef6ada165e2
94 Risk Score

Malware Insights

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

The file was detected by ClamAV as Pdf.Phishing.Trojan and flagged by an ML classifier, indicating malicious intent. The embedded URLs suggest a phishing lure, likely aiming to trick the user into downloading a secondary payload. The PDF structure and content, though heavily obfuscated, are consistent with malware delivery mechanisms.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8846

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 https://www.americanapi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160712020d7be5---6991677012.pdf
    • https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/7543d2c9e25010fc4c30a234d2049351/mazigenaximemol.pdf
    • https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086a032bf685---medogiwexirodifa.pdf
    • https://socialacademy.gr/wp-content/plugins/super-forms/uploads/php/files/9297f1f035b94d929bdb3229e7123ab6/89974894444.pdf
    • http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607f07027a636---28276389332.pdf
    • http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c598642042---gunasasonilutuxu.pdf
    • https://frontlinetherapist.com/wp-content/plugins/super-forms/uploads/php/files/e48c26abd57ef8602c39f8c3de96e5db/rugugekifope.pdf
    • http://www.petersmetalstitching.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608ca765eb3da---xomasonojidak.pdf
    • http://creativeindustries.ru/uploads/userfiles/file/15878729627.pdf
    • https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086b26598f28---dorakesizid.pdf
    • https://bawwabatrizq.com/userfiles/file/sufegojidajoraxiripi.pdf
    • http://www.reroofingbrisbaneqld.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606f64a9c0992---73912070708.pdf
    • https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086cb3e6263b---gowupes.pdf
    • https://afayl.com/userfiles/file/63791254729.pdf
    • https://www.certificagreen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160872c7a98f1e---86583707167.pdf
    • https://saraelv.no/wp-content/plugins/formcraft/file-upload/server/content/files/16076fcc3182e9---91787127229.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=biogeochemical+cycles+notes+pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e57b.bin
862627872464b871f5fa512be87c5faca284e1c68af90c02189b66ccf7f47580		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE57B 5624 bytes
font_01_sfnt_off0000f88b.bin
333213a9d12874a63e29ce92da30a5e4e85caa4dbfc093c17f7cfce49d07db07		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF88B 10648 bytes

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