Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c9cd56a2f2d5ed5…

MALICIOUS

PDF

188.0 KB Created: 2015-07-23 20:49:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 37f83163665c344bafc7b0a0b316e19f SHA-1: 8369cc20848919c5d5f975d6cfc277af6f62d611 SHA-256: 3c9cd56a2f2d5ed5cbe245fe68ea31fa1547d4d8e92774ba57532faa464100a0
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 identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to a harmful destination.

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%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80%D1%8B+%D0%BD%D0%B0%D1%87%D0%B8%D1%81%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F+%D0%BE%D1%82%D0%BF%D1%83%D1%81%D0%BA%D0%BD%D1%8B%D1%85+%D0%B2+2015+%D0%B3%D0%BE%D0%B4%D1%83&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184547_wolfenstein_the_new_order_rusifikator_teksta.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184483_i_yeho_letit_po_goram_skachat_epub.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183256_shema_podklyucheniya_gerkona.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002497f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x2497F 3556 bytes
font_01_sfnt_off00025702.bin
62689b19777ab1929d74a6b00d8442d328a65ab9f932ba387ca8af68747768e6
pdf-font-stream PDF embedded font (sfnt) at offset 0x25702 14744 bytes
font_02_sfnt_off0002856f.bin
4ccd24c04aba4038d2a352279965d2c0bd841adbe55b05d67d7192107527a4a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x2856F 14708 bytes
font_03_sfnt_off0002b0e5.bin
494d57b1487eac7e05c55bc345238cc9b612c3b6c39ac8fdb5810baa9df7b54c
pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0E5 7228 bytes
font_04_sfnt_off0002c620.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C620 6084 bytes
font_05_sfnt_off0002d5b5.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5B5 3752 bytes