Malicious PDF — malware analysis report

Static analysis result for SHA-256 babc027cd2e4f357…

MALICIOUS

PDF

183.3 KB Created: 2015-08-05 16:38:14 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6fee167e119f8a4eeab024329ebb0fcc SHA-1: 860d5c3c94a4f05003e23da49a42815fee310646 SHA-256: babc027cd2e4f35771a9db01d8a9e30108b48a7a24862cb860cbcc534d76262c
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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+wh+%D0%B4%D0%BB%D1%8F+css+v+34&charset=utf-8' is the primary indicator of malicious intent. No scripts were extracted, and the document body was not sufficiently readable to determine a specific lure. The file was authored using wkhtmltopdf, which is sometimes used to package malicious content.

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%D1%87%D0%B0%D1%82%D1%8C+wh+%D0%B4%D0%BB%D1%8F+css+v+34&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305258_skachat_skayrim_5_cherez_torrent_russkaya_versiya.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305194_skachat_novinki_igruy_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305719_smayliki_v_odnoklassnikah_koduy.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a09b.bin
5855fbe8b8f09c945a2457c8396882267df5a243ac0c8f9e471b449a8f517d4d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A09B 6588 bytes
font_00_sfnt_off00023aa8.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23AA8 3556 bytes
font_01_sfnt_off0002482b.bin
1872c6b2665b1397ada8cc592772d7e585edd4abc800ebd7e28f05246ea4371a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2482B 14440 bytes
font_02_sfnt_off00027565.bin
41b171bee721cafbd707cc0ff30f75faf35e2cdab108bf3acd5ab23804e53ef5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27565 14688 bytes
font_04_sfnt_off0002b38b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B38B 6084 bytes
font_05_sfnt_off0002c320.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C320 3752 bytes

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