Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f6fc9d95935b166…

MALICIOUS

PDF

185.5 KB Created: 2015-07-27 01:07:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f427947a30214e383979614e64039889 SHA-1: fd402e565154c59f5e146a409152cdfbc3238754 SHA-256: 8f6fc9d95935b166e5b60dea6c3bf5a9831a80cbfa5ab6ee8ac356ac9a6a7f78
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is associated with malicious redirector activity. This suggests the document is designed to lure users to a harmful website.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B0%D0%B7%D1%83+%D0%B4%D0%B0%D0%BD%D0%BD%D1%8B%D1%85+%D0%B2%D0%BA%D0%BE%D0%BD%D1%82%D0%B0%D0%BA%D1%82%D0%B5+2015&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191866_chitat_instrukciyu_k_sheriff_2w5bled.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4219/4219650_klyuchi_kaspersky_internet_security_2011_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205756_instrukciya_po_montazhu_pm_bosch_sd4p1b.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023fe6.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x23FE6 3556 bytes
font_01_sfnt_off00024d69.bin
2b2d5b67423cf6fb023e6a869c1d561f47d0f54153a506df0a5b1cf2f4a97900
pdf-font-stream PDF embedded font (sfnt) at offset 0x24D69 14940 bytes
font_02_sfnt_off00027c3e.bin
4ccd24c04aba4038d2a352279965d2c0bd841adbe55b05d67d7192107527a4a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x27C3E 14708 bytes
font_03_sfnt_off0002a7b4.bin
adc7cc63d47bb1cd0eaac2d72a19eb54783ff3cf5ff15cb8e0b2a1c9e0a01e4a
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7B4 7048 bytes
font_04_sfnt_off0002bc46.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC46 6084 bytes
font_05_sfnt_off0002cbdb.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBDB 3752 bytes