Malicious PDF — malware analysis report

Static analysis result for SHA-256 d9ced2ca5b266a9a…

MALICIOUS

PDF

187.4 KB Created: 2015-07-24 00:18:51 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e0f2b04fc90619c95e313be3614dd75b SHA-1: 6e70fff8fa9a72b36ea7c3a8ad2734a7bf388b2c SHA-256: d9ced2ca5b266a9a5b7b3f3c0e192e2d979f5abb39ead4278e8bea8031949aae
152 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a critical heuristic firing for a malicious redirector link pointing to http://botcraftman.ru/. The file is likely a dropper, designed to redirect the user to this malicious URL to initiate a further download or exploit. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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-7493432-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7493432-0
  • 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%B3%D1%80%D0%B0+%D0%BF%D1%80%D0%B5%D1%81%D1%82%D0%BE%D0%BB%D0%BE%D0%B2+%D0%B2%D1%81%D0%B5+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD%D1%8B+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B2+%D1%85%D0%BE%D1%80%D0%BE%D1%88%D0%B5%D0%BC+%D0%BA%D0%B0%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185315_yekzamenacionnuye_biletuy_na_yekskavator.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184659_skachat_igru_zuma_2_besplatno_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185704_skachat_gta_san_andreas_s_modami_cherez_torrent_2015.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024a4a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24A4A 3556 bytes
font_01_sfnt_off000257cd.bin
1c606cbf3f6778330bfb18e501932b7518fc87af8c59e33b85065eafb7f2f0e1
pdf-font-stream PDF embedded font (sfnt) at offset 0x257CD 14460 bytes
font_02_sfnt_off0002853b.bin
d04ded3756685624b90131bc1a10ab086710099b2a06526d13a43d86d454f2c4
pdf-font-stream PDF embedded font (sfnt) at offset 0x2853B 14588 bytes
font_03_sfnt_off0002b04f.bin
4aa04f956487b95f7a16b00a4970594c163194fb468be813fc50105cde3af512
pdf-font-stream PDF embedded font (sfnt) at offset 0x2B04F 6808 bytes
font_04_sfnt_off0002c3df.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3DF 6084 bytes
font_05_sfnt_off0002d374.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D374 3752 bytes