Malicious PDF — malware analysis report

Static analysis result for SHA-256 efa185e63eaeb632…

MALICIOUS

PDF

183.0 KB Created: 2015-08-08 10:56:17 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 5a58c69550bf914fa97cce485aa61988 SHA-1: e768b494063c0e0ea1567df5eb24638e75cc423b SHA-256: efa185e63eaeb632b5f570d8914cec2df16622e9d2136338e8dbaa398fa8ff74
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to a known malicious redirector. The embedded URL http://botcraftman.ru/?lip&keyword=yoocarousel+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8 is the primary indicator of malicious intent. This suggests the document is designed to lure users to a potentially harmful website. No scripts were extracted from this sample.

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=yoocarousel+%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//4384/4384272_shemuy_na_tiristorah.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384658_sbornik_russkogo_roka_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384638_pyataya_strazha_serial_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off00029f85.bin
e24eb3640e5469978f49ed1e950eaba88d4170dede737141ff3867a353f1d259
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29F85 6508 bytes
font_00_sfnt_off000239ab.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x239AB 3556 bytes
font_01_sfnt_off0002472e.bin
d7c96512cc502986ce6e237f55f9315d2e0f7a4cac610aa1002aacd59a70d0f6
pdf-font-stream PDF embedded font (sfnt) at offset 0x2472E 14652 bytes
font_02_sfnt_off000274aa.bin
97940d7fa7984a1a812d5def47e21b66272832422babc6b332c7c9b62c47e951
pdf-font-stream PDF embedded font (sfnt) at offset 0x274AA 14520 bytes
font_04_sfnt_off0002b215.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2B215 6084 bytes
font_05_sfnt_off0002c1aa.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1AA 3752 bytes