Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1c60901ae9e584c…

MALICIOUS

PDF

67.6 KB Created: 2021-01-22 22:51:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: e01bf721536c96c2a0a08be9a9ef6cf9 SHA-1: 36c2cae1de91e9260d531eee3c7cb3e3e14eb6f7 SHA-256: b1c60901ae9e584ca5e51dab48b77268bc47a853a949ca9d64d958be770e4442
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged the PDF as malicious. The document body, though heavily obfuscated, appears to contain text related to song downloads, suggesting a lure to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7444

Heuristics 3

  • 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
  • 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://trafficel.ru/aws?utm_term=bajrang+dal+song++mr+jatt PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370062/normal_5ff9abae74fed.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371244/normal_5ffcca81c0ac6.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403413/normal_5feb1a41cc8d7.pdfIn PDF document text
    • https://site-1223352.mozfiles.com/files/1223352/bollywood_latest_video_songs_video_9__com.pdfIn PDF document text
    • https://site-1245158.mozfiles.com/files/1245158/caballo_de_troya_6_libros_gratis.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482623/normal_5fc72a170c1e8.pdfIn PDF document text
    • https://site-1178617.mozfiles.com/files/1178617/pazotulavoxu.pdfIn PDF document text
    • https://site-1247956.mozfiles.com/files/1247956/48832307106.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482636/normal_5ffd76d734dde.pdfIn PDF document text
    • https://site-1175399.mozfiles.com/files/1175399/sigajoxenup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414491/normal_5fe6a85616bae.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/libeganot/xolusolopodugow.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/25193217030.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE51 5272 bytes
SHA-256: 0d2c093b87406437770527d50f117d62d7174e67f9b6b919791e315cf007415d
font_01_sfnt_off0000e022.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE022 2024 bytes
SHA-256: a511fb262e2f240b0cc62b800179189f1c69c7b4d67d938f9bc0c5e12ef74554

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