Malicious PDF — malware analysis report

Static analysis result for SHA-256 322e657921b6cb29…

MALICIOUS

PDF

186.6 KB Created: 2015-07-23 20:09:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: e3b6c0214dd0b8a60c623e6647cbd40a SHA-1: 1229a57b9d46ff8f6dfdaba1a495be31816cca9b SHA-256: 322e657921b6cb29165ea01c3a62870e14d0bbd01c110fe199c371841a9d42b5
152 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 strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is known for malicious redirection. This suggests the PDF is a lure to direct the user to a malicious site, likely for malware distribution or phishing.

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-8786456-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8786456-0
  • 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%A1%D0%B8%D0%BC%D1%81+4+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184407_sims_2_pitomcuy_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183200_lampovuyy_peregruz_shema.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184357_speed_art_skachat_programmu_dlya_risovaniya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024433.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24433 3556 bytes
font_01_sfnt_off000251b6.bin
4383ba011a8ace9fbee496a0f31674de8097d80b5b1d8f23e30ed647627c8322		 pdf-font-stream PDF embedded font (sfnt) at offset 0x251B6 15632 bytes
font_02_sfnt_off0002821b.bin
6ad9b1c40d206dff161cab727ef19673356160109b7761501a2ce5fa4fbc1e14		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2821B 14468 bytes
font_03_sfnt_off0002accd.bin
3e58beaba33ea6c208e588cc2bf3eabc5306ceb3959df849c72183cee58cae55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACCD 6808 bytes
font_04_sfnt_off0002c082.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C082 6084 bytes
font_05_sfnt_off0002d017.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D017 3752 bytes

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