Malicious PDF — malware analysis report

Static analysis result for SHA-256 99683ec87c04f042…

MALICIOUS

PDF

184.5 KB Created: 2015-08-08 10:55:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 03c2a7f1a108406a3d71fa751982025c SHA-1: bab1d73ed9efd17d7b72cbdc45aa7f2d2093f5e9 SHA-256: 99683ec87c04f042ce62fa3c0cd212430adb80d5788cf8fa0ddfda92e0de184d
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to a known malicious redirector at http://botcraftman.ru/. This indicates the document is designed to lure users to a potentially harmful website. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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%B1%D1%83%D1%85%D0%B3%D0%B0%D0%BB%D1%82%D0%B5%D1%80%D1%81%D0%BA%D0%B0%D1%8F+%D1%81%D0%BF%D1%80%D0%B0%D0%B2%D0%BA%D0%B0+%D0%B4%D0%BB%D1%8F+%D1%82%D0%B5%D0%BD%D0%B4%D0%B5%D1%80%D0%B0&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383900_mortal_kombat_mugen_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385565_samoobrazovanie_vospitatelya_melkaya_motorika_ruk.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384437_silverfall_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023ea9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23EA9 3556 bytes
font_01_sfnt_off00024c2c.bin
72722afa68158abf78c60545de7056b87b4a78984ae93b9b85fd48775d403525		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C2C 15008 bytes
font_02_sfnt_off00027ab5.bin
c0767acc64ad0a6d12d28b9006de4001df9cff767ad995e45e6b629c0654731f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AB5 14532 bytes
font_03_sfnt_off0002a5a8.bin
f8e8089535d98cc3a60ece88fe6c1fb33b096fef736f210f83e938f76eb839ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5A8 6532 bytes
font_04_sfnt_off0002b849.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B849 6084 bytes
font_05_sfnt_off0002c7de.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C7DE 3752 bytes

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