Malicious PDF — malware analysis report

Static analysis result for SHA-256 cbbb0f008458109c…

MALICIOUS

PDF

187.2 KB Created: 2015-07-24 07:45:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 20da3fe5545917001222df13756f8e1d SHA-1: 0619721975e9452582beeb844f33ae583e2df54f SHA-256: cbbb0f008458109c107f41c4f9690575f43566672e2b2a6e19fabe34d8601893
92 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 infrastructure at botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful website. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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%BF%D0%BE%D1%80%D0%BD%D0%BE+3+d+%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//4185/4185393_trudovoy_dogovor_s_praktikantom_obrazec.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184894_raspisanie_poezdov_kazahstan_temir_zholuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184973_generator_klyuchey_dlya_ofisa_2010_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024d0d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D0D 3556 bytes
font_01_sfnt_off00025a90.bin
ae5ae121286f10734bdc7178af004f5c1790d9fc01ddffd0c2861f9086043d7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25A90 14652 bytes
font_02_sfnt_off00028853.bin
a8e34466c77775282ff35936152e77d2d006e6251a28fa13b9eb6049a2645024		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28853 14468 bytes
font_03_sfnt_off0002b2fe.bin
99fa4f7249ba6ae090b6407a7d424736700efe23f83e3aea8b68040437870622		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B2FE 5824 bytes
font_04_sfnt_off0002c314.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C314 6084 bytes
font_05_sfnt_off0002d2a9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2A9 3752 bytes

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