Malicious PDF — malware analysis report

Static analysis result for SHA-256 f73e4b26a261c3c4…

MALICIOUS

PDF

184.8 KB Created: 2015-07-24 09:02:37 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 93853d2dbb5936c66e16eb79b2826094 SHA-1: a83468540194b6aae0386f84c6481eb06d50c3ee SHA-256: f73e4b26a261c3c45f8d8b885ae771075a8cad08d5732b0151f9dd367b1949b1
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 known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/?lip&keyword=virtuagirl+%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&charset=utf-8' is the primary indicator of malicious intent. No scripts were extracted, and the document body was heavily truncated, limiting further analysis of the delivery mechanism.

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=virtuagirl+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188281_skachat_acronis_disk_director_11_home_rus___klyuch.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184654_programma_dlya_nastroyki_zvuka_na_kompyutere_windows_7.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184554_sims_3_polnaya_antologiya_19_v_1_skachat_torrent_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e5a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x23E5A 3556 bytes
font_01_sfnt_off00024bdd.bin
e6861eb08145cced3995db6bd9d916ba138bf87ee13813ec7ba98e801f8f24f7
pdf-font-stream PDF embedded font (sfnt) at offset 0x24BDD 15016 bytes
font_02_sfnt_off00027a4d.bin
f23ff691ae332bcf25dfc6b85cf65d9dd4333f46a7716f9cdaab9282b52aeb55
pdf-font-stream PDF embedded font (sfnt) at offset 0x27A4D 14632 bytes
font_03_sfnt_off0002a588.bin
0b00a8780b53ef26d7f69e7e083a45f8b76993251d6ca88d737f608e7ee14afa
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A588 6828 bytes
font_04_sfnt_off0002b941.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2B941 6084 bytes
font_05_sfnt_off0002c8d6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8D6 3752 bytes