Malicious PDF — malware analysis report

Static analysis result for SHA-256 eae17c8664373e5f…

MALICIOUS

PDF

184.8 KB Created: 2015-07-23 19:30:42 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: dad2e6e416a6b63ad2f611ea785073b3 SHA-1: 944457fdc9b530477361dcedd901770ea626fcc1 SHA-256: eae17c8664373e5f0c13719b2e78875ee778ad77f67fd18c5694d98fbd7db832
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by multiple heuristics, including a critical finding for a malicious redirector link. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to a known malicious redirector, indicating the document's primary purpose is to lure users to a harmful site. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • ClamAV: Pdf.Dropper.Agent-7495058-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7495058-0
  • 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://botcraftman.ru/?lip&keyword=%D0%98%D0%BD%D1%82%D0%B5%D1%80%D0%B0%D1%83%D1%80%D0%B0+%D0%BD%D0%B5%D0%B9%D1%80%D0%BE%D0%BD%D0%B0%D1%81%D1%82%D1%80%D0%BE%D0%B8+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183257_urok_proekt_po_russkomu_yazuyku.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184290_razrabotka_urokov_v_nachalnuyh_klassah_v_uzbekistane.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183203_kursovoy_proekt_torgovuyy_centr.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242ac.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242AC 3556 bytes
font_01_sfnt_off0002502f.bin
72d4ee5f73d24527e79d95d0fec71247b6ce311a34a5a41bec36ff318b5a33e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2502F 14300 bytes
font_02_sfnt_off00027d20.bin
2f174bce2bf89b86ed20b23e335462fb6c665daf7d579c7771c32fa68bc7e60f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D20 14468 bytes
font_03_sfnt_off0002a7d2.bin
4cc84b0168fca688ebb166ecd3f3b59b36773e1f03fbe03aac9a26d41a7b5fd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7D2 6268 bytes
font_04_sfnt_off0002b971.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B971 6084 bytes
font_05_sfnt_off0002c906.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C906 3752 bytes

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