Malicious PDF — malware analysis report

Static analysis result for SHA-256 fdb9d87c87f9b2ea…

MALICIOUS

PDF

73.2 KB Created: 2021-05-09 23:11:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7095bbd97d8b576aa4d8c52c29f007f3 SHA-1: d7a0923102bdf53c3030cc499c185060a4d8278d SHA-256: fdb9d87c87f9b2ea10052f4993fe2af2c77d7f7fe9800e2ae860b3a3529f4478
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of multiple embedded URLs, some pointing to potentially compromised websites, suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to trick users into visiting harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609821e75cd39---93179350476.pdf
    • https://baconbites.com/wp-content/plugins/super-forms/uploads/php/files/js0dalap8coam213ds27ppmld7/bivefe.pdf
    • http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/160944d2237ff4---48028086393.pdf
    • http://www.caribbeandentist.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082514729dc8---wadobanisanegakovarura.pdf
    • https://malimbe.africa/wp-content/plugins/super-forms/uploads/php/files/2f15ac612f78f0c0f58af9a9ac0ce3f2/17904500763.pdf
    • http://www.x454.com/wp-content/plugins/super-forms/uploads/php/files/3rlnpem3nrfr08qkh9c1jlec06/kudurekoso.pdf
    • https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093b71a0d6cf---70343200227.pdf
    • http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/160742e476d05f---zuzos.pdf
    • https://deewo.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607c7000d2288---fepobowowokugig.pdf
    • http://www.etoiles-recrutement.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f724dda2c4---8069288583.pdf
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/138f308eb59f2dc875c6e8d58f356e6d/wezevamizagaxidosi.pdf
    • http://kino-profi.com/wp-content/plugins/super-forms/uploads/php/files/3e911f01b0e4345c293d0a8c8bd71f5f/rapina.pdf
    • http://alpha-cp.com/userfiles/file/66260184368.pdf
    • http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16075dfddd01f8---70278800787.pdf
    • https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/893166fa3265578b8bd1aab7c2c706f6/29989081752.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=cursive+name+writing+template
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d5d0.bin
96936a7cf95fa5b8da066a0a6067973f41e2c91f361a2ebb416e4421b19a7656		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD5D0 5084 bytes
font_01_sfnt_off0000e718.bin
336cbf26977dfc3081bdff3ab036d211e7790242899ede88cd3aafaf35e0ad83		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE718 10108 bytes
font_02_sfnt_off000109bc.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x109BC 4324 bytes

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