Malicious PDF — malware analysis report

Static analysis result for SHA-256 003b015184d1f4ea…

MALICIOUS

PDF

186.0 KB Created: 2015-07-23 21:01:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 19953724613485aa9639299e2d34b4c3 SHA-1: b4358812992925bb0eb3870a9ff7159e4a22bea4 SHA-256: 003b015184d1f4eae9e962f72c244a7c555d34be282017cb7cc0af09a14a5c30
92 Risk Score

Malware Insights

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

The PDF document contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The ML classifier also flagged the PDF with high confidence. The primary IOC is the malicious URL, which is likely used to deliver a secondary payload or phish for credentials.

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%94%D1%80%D0%B0%D0%BC%D0%B0%D1%82%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8%D0%B5+%D0%B6%D0%B5%D0%BD%D1%81%D0%BA%D0%B8%D0%B5+%D0%BC%D0%BE%D0%BD%D0%BE%D0%BB%D0%BE%D0%B3%D0%B8+%D1%81%D0%BF%D0%B8%D1%81%D0%BE%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184424_gta_4_lost_and_damned_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184531_otchet_po_praktike_v_fskn.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184708_xray_16_engine_skachat.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024399.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24399 3556 bytes
font_01_sfnt_off0002511c.bin
8a5fce938e0206fbd03a8c7653cdb5eb6c5300775e078b59842f22975814f073		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2511C 15444 bytes
font_02_sfnt_off000280d7.bin
c457fcfaab6f548331a7572fefd0d96ae260c7787e9dff2b51ae1aa36573dbb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x280D7 14468 bytes
font_03_sfnt_off0002ab86.bin
31daeb48b057231fbdfca4af10cd36d8ec3e2f73f224d9dece202ab76a7253bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB86 6548 bytes
font_04_sfnt_off0002be24.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE24 6084 bytes
font_05_sfnt_off0002cdb9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDB9 3752 bytes

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