Malicious PDF — malware analysis report

Static analysis result for SHA-256 40f29a3c703463e8…

MALICIOUS

PDF

186.8 KB Created: 2015-07-25 11:47:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0b87f9528b544dd42e72658a1e08c41d SHA-1: 18f30d042f7d0d0859f746b2efb2da0a62fd1e2d SHA-256: 40f29a3c703463e8c7398bc62b28fafe0428b476bd17938b4a59aac0ecbc5ae3
90 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 alert for a link to known malicious redirector infrastructure. The primary malicious IOC is the URL http://botcraftman.ru/, which is likely used to direct users to a harmful destination. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 2

  • 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.
  • 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%D1%82%D0%BE%D0%B3%D0%BE%D0%B2%D0%B0%D1%8F+%D0%BA%D0%BE%D0%BD%D1%82%D1%80%D0%BE%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F+%D1%80%D0%B0%D0%B1%D0%BE%D1%82%D0%B0+%D0%BF%D0%BE+%D0%B0%D0%BB%D0%B3%D0%B5%D0%B1%D1%80%D0%B5+8+%D0%BA%D0%BB%D0%B0%D1%81%D1%81+2015&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195023_vremya_priklyucheniy_5_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192066_mod_na_seks_v_fallout_new_vegas.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187883_skachat_besplatno_maykrosoft_ofis_2007_na_russkom_bez_klyucha.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002457a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x2457A 3556 bytes
font_01_sfnt_off000252fd.bin
7fa2455d00bbf6fe7dae6b793495fe3276d0f5564904c39a5858c586e55a6433
pdf-font-stream PDF embedded font (sfnt) at offset 0x252FD 14968 bytes
font_02_sfnt_off00028179.bin
9509d5e4f137dec9e96cd9ab1829396d1166087617e2801f6ac091d54ea8a4bb
pdf-font-stream PDF embedded font (sfnt) at offset 0x28179 14640 bytes
font_03_sfnt_off0002acb0.bin
c675606d329e4801e619b8022b640624f3fdb0ef64937494f4f3795aef86da28
pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACB0 7096 bytes
font_04_sfnt_off0002c149.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C149 6084 bytes
font_05_sfnt_off0002d0de.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D0DE 3752 bytes