Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd255031566d882f…

MALICIOUS

PDF

188.9 KB Created: 2015-07-24 13:06:30 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ce48cae6979d402003f78315fb35fde9 SHA-1: fde38bd8e151cb8c3cb9c9a46ef4edb963a4253d SHA-256: cd255031566d882fae7a4917230fafd49f2118aa2f8f3dba7da578434fbb79d5
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 potentially harmful website.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%94%D0%BE%D0%B3%D0%BE%D0%B2%D0%BE%D1%80+%D0%B3%D1%80%D0%B0%D0%B6%D0%B4%D0%B0%D0%BD%D1%81%D0%BA%D0%BE+%D0%BF%D1%80%D0%B0%D0%B2%D0%BE%D0%B2%D0%BE%D0%B3%D0%BE+%D1%85%D0%B0%D1%80%D0%B0%D0%BA%D1%82%D0%B5%D1%80%D0%B0+%D1%81+%D1%84%D0%B8%D0%B7+%D0%BB%D0%B8%D1%86%D0%BE%D0%BC+%D0%BE%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190291_ppjoy_dlya_windows_8.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192182_primer_zapolneniya_sestrinskoy_istorii_bolezni.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191512_perevodchik_s_russkogo_na_moldavskiy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024e2b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24E2B 3556 bytes
font_01_sfnt_off00025bae.bin
49ed832b98d55927a523f89828ec6dbfd6ab39c30dbed67b88a03932a46a181f
pdf-font-stream PDF embedded font (sfnt) at offset 0x25BAE 14744 bytes
font_02_sfnt_off0002898a.bin
b4b78b71441c848d9cb267a1fe8d0da42235ee9c67d6c7dccc3c5bcd076ef03f
pdf-font-stream PDF embedded font (sfnt) at offset 0x2898A 14532 bytes
font_03_sfnt_off0002b479.bin
811eeabbde8801c03bc9febf3d0deef3a0e513a2f5d5f89c5321b885c92d87a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x2B479 7276 bytes
font_04_sfnt_off0002c9b6.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9B6 6084 bytes
font_05_sfnt_off0002d94b.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D94B 3752 bytes