Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7eb60b9c9101420…

MALICIOUS

PDF

186.9 KB Created: 2015-07-23 21:07:26 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fd2b7ae60845bb7e12049bf45d8a1259 SHA-1: f58d19fefc7a318871b841d5a7a840f5827ebb73 SHA-256: e7eb60b9c9101420238fc576c225cc2e647ac77198594c389a99627bc245325a
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical finding for a link to known malicious redirector infrastructure. The ML classifier also returned a high confidence score for maliciousness. The ClamAV detection 'Pdf.Dropper.Agent-8790130-0' suggests the PDF is designed to drop or redirect to other malicious content. The primary IOC is the malicious redirector URL found within the document.

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-8790130-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8790130-0
  • 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%B6%D0%B8%D1%82%D0%BA%D0%BE%D0%B2+%D0%BC%D0%BE%D1%80%D1%81%D0%BA%D0%B8%D0%B5+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D0%B8+%D0%BA%D1%80%D0%B0%D1%82%D0%BA%D0%BE%D0%B5+%D1%81%D0%BE%D0%B4%D0%B5%D1%80%D0%B6%D0%B0%D0%BD%D0%B8%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184513_skachat_cherez_torrent_windows_xp_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184645_ortp_dll_world_of_tanks_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184754_programma_razvitiya_dou_v_sootvetstvii_s_fgos_20142018g.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024673.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24673 3556 bytes
font_01_sfnt_off000253f6.bin
4d81fcb9f775ed54b1e81b17699a86a4ec6a0207b65b8b6fe5a10a17cf33334c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253F6 15488 bytes
font_02_sfnt_off00028343.bin
a3ed4f2e59bf3f959745a5040edea6af25bf329739b97ec1e0059e243fa5d6a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28343 14704 bytes
font_03_sfnt_off0002aea4.bin
0cf9d47633a84eb60455fabee71dd99855e26f5e107d72be7f5a9779bf1d6d7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AEA4 6696 bytes
font_04_sfnt_off0002c1c1.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1C1 6084 bytes
font_05_sfnt_off0002d156.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D156 3752 bytes

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