Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e29fcd79359219…

MALICIOUS

PDF

185.7 KB Created: 2015-07-23 20:24:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c9ce11eac3e3d286a628301da061352b SHA-1: 67c226ba37b7e0c1d50ffd17977169c7bd348069 SHA-256: 25e29fcd79359219af5bd925996b3f19e4abd0bebacf9607cc5e5e25e1799c43
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, http://botcraftman.ru/, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The document body appears to be malformed or truncated, providing no further context on its intended purpose beyond the malicious redirect.

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%BA%D0%BE%D0%B4%D1%8B+%D0%BD%D0%B0+%D0%B7%D0%BE%D0%BC%D0%B1%D0%B8+%D0%BC%D0%B0%D0%BD%D0%B8%D1%8E+%D0%B2+%D0%BE%D0%B4%D0%BD%D0%BE%D0%BA%D0%BB%D0%B0%D1%81%D1%81%D0%BD%D0%B8%D0%BA%D0%B0%D1%85&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184407_sims_2_pitomcuy_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184307_skachat_programmu_dlya_nastroyki_sabvufera.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184454_skachat_programmu_msvcr100dll.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000242e5.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242E5 3556 bytes
font_01_sfnt_off00025068.bin
930997b1f8a2aed293f152830adb9fe0b6de0c2dcf13565094c3f0f2349f5cf0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25068 14636 bytes
font_02_sfnt_off00027e78.bin
923d73b03f8272a167df43f9281d599f83cd718efb488401ac000f5e305e1972		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E78 14532 bytes
font_03_sfnt_off0002a968.bin
a5a254c3a9772c21026515b61d31d9ad60680e90d019dd46556687983d7c4730		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A968 6844 bytes
font_04_sfnt_off0002bd0e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD0E 6084 bytes
font_05_sfnt_off0002cca3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCA3 3752 bytes

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