Malicious PDF — malware analysis report

Static analysis result for SHA-256 90d5e487930b49b2…

MALICIOUS

PDF

183.8 KB Created: 2015-08-05 13:33:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a70f96fb5366436a8f50b8a923e6237b SHA-1: d8445d0a51d726bda46659187636a975de42685b SHA-256: 90d5e487930b49b2b9d49dca1dc96147e97a0b7c07494875d86683ca630c9da4
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 a known malicious redirector. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to 'botcraftman.ru', which is associated with malicious redirector activity. No scripts were extracted, but the presence of a malicious link suggests the document is intended to lure the user to a harmful site.

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-7524453-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7524453-0
  • 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%B8%D0%BD%D0%B4%D0%B8%D0%BA%D0%B0%D1%82%D0%BE%D1%80%D1%8B+%D1%82%D1%80%D0%B5%D0%BD%D0%B4%D0%B0+%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://img0.liveinternet.ru/images/attach/c/6//4304/4304457_dopuski_posadki_tablica.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304471_3d_home_architect_design_suite_deluxe_8_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304437_klyuch_dlya_avast_internet_security_601000.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023d0c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23D0C 3556 bytes
font_01_sfnt_off00024a8f.bin
400c7ffbba7857332a0907b1216d0b9a219b9fa1e496de4eaab9629e0b264223		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A8F 14964 bytes
font_02_sfnt_off000278d1.bin
2f174bce2bf89b86ed20b23e335462fb6c665daf7d579c7771c32fa68bc7e60f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x278D1 14468 bytes
font_03_sfnt_off0002a383.bin
6d67885fcb2d5b42f3973594441cc053852a50d91b58494b540addb7aef5706d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A383 6304 bytes
font_04_sfnt_off0002b549.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B549 6084 bytes
font_05_sfnt_off0002c4de.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4DE 3752 bytes

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