Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccfef0b23dedf859…

MALICIOUS

PDF

186.3 KB Created: 2015-07-24 00:16:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ee04518d80eb437e11b6844d29fd6186 SHA-1: 6527b4524d395e46aa13dde22c6e67cfed3210fc SHA-256: ccfef0b23dedf859d542d51486b5c44145ee79567800b953113e1d1989251901
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 a known malicious redirector. This suggests the document's primary purpose is to lure the user to a malicious 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%D0%BD%D0%B5%D1%80+%D1%82%D0%B5%D0%BB%D0%B0+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B1%D0%B5%D0%B7+%D1%81%D0%BC%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185336_rammstein_skachat_klip_ich_will.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185220_fifa_10_skachat_torrent_pc_polnaya_versiya_besplatno_na_russkom.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185216_skachat_novuye_igruy_ot_alavar_2015_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002457f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2457F 3556 bytes
font_01_sfnt_off00025302.bin
7d364d218959b98331c6fdc9edf9923dfdcc0ec71991a1e022fb08494564595d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25302 15060 bytes
font_02_sfnt_off000281a2.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281A2 14468 bytes
font_03_sfnt_off0002ac54.bin
6d0d7805ae2fa53d7aaef3cdfa85a33a211a452dbc3d863eef626117337151ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC54 6676 bytes
font_04_sfnt_off0002bf78.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF78 6084 bytes
font_05_sfnt_off0002cf0d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF0D 3752 bytes

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