Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7ecd169a93955f9…

MALICIOUS

PDF

184.6 KB Created: 2015-07-24 04:45:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 7437c7587aba30c850aa9e57d4d1182f SHA-1: 313c3cca0496fdf6de794b13e86f1845ea12bf2f SHA-256: b7ecd169a93955f99000abfbdceb00c4d0437a94511094f99e75729cc57eb885
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/?lip&keyword=Nexus+%D0%B4%D0%BB%D1%8F+fl+studio+10+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8' is the primary indicator of malicious intent. The document body is largely binary data, offering no further context on the lure.

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=Nexus+%D0%B4%D0%BB%D1%8F+fl+studio+10+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185554_mac_os_x_109_skachat_torrent_iso.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185258_orel_i_reshka_praga_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186782_ethernet_controller_11864200_nodb_gde_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a466.bin
9a0342717d92edee13ed0b84b86bd10e5d8149c7a5250d1cb463de65b508fb0b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A466 6912 bytes
font_00_sfnt_off00023cfe.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23CFE 3556 bytes
font_01_sfnt_off00024a81.bin
32bc01d06ae41617bda537e53a2bc2729a0a020dba814a2276f174647ce28298		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A81 15036 bytes
font_02_sfnt_off0002788d.bin
17fe4169e956dc0426e93a95a3756fe3993d8114189294c62d6b33c05a561183		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2788D 14796 bytes
font_04_sfnt_off0002b87b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B87B 6084 bytes
font_05_sfnt_off0002c810.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C810 3752 bytes

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