Malicious PDF — malware analysis report

Static analysis result for SHA-256 6101a6a5bfe01a2d…

MALICIOUS

PDF

186.2 KB Created: 2015-07-24 19:36:23 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8cac269501a599352c0e770dfd13d015 SHA-1: fe00c97ce5965ee36b6fc516c732c777a95d721f SHA-256: 6101a6a5bfe01a2d03de28834da27ea6a026e7dd584e0eb4beda529fa28c087c
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The embedded URL is likely part of a phishing or malware distribution chain, aiming to redirect the user to a harmful site.

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%BC%D0%B5%D1%84%D0%BE%D0%B4%D0%B8%D0%B9+%D0%B1%D1%83%D1%81%D0%BB%D0%B0%D0%B5%D0%B2+%D0%B8+%D0%BE%D0%B3%D0%BD%D0%B5%D0%BD%D0%BD%D1%8B%D0%B5+%D0%B2%D1%80%D0%B0%D1%82%D0%B0+%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/5//4186/4186332_prodazha_informacii_v_internete_ot_a_do_ya_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189594_skachat_chit_na_bessmertie_v_ks_16.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184730_si_sharp_skachat.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024457.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24457 3556 bytes
font_01_sfnt_off000251da.bin
71be1aab7efc814aa83cee868cfe23cbba5b0fb3d25986ccf58eb08626e095c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x251DA 14556 bytes
font_02_sfnt_off00027f8a.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd
pdf-font-stream PDF embedded font (sfnt) at offset 0x27F8A 14468 bytes
font_03_sfnt_off0002aa3c.bin
5060cdf23735967b4256dbefd9367ce937dde04f6f95e859dc3512dca68209b0
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA3C 7108 bytes
font_04_sfnt_off0002bedd.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BEDD 6084 bytes
font_05_sfnt_off0002ce72.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE72 3752 bytes