Malicious PDF — malware analysis report

Static analysis result for SHA-256 50d32433164d9446…

MALICIOUS

PDF

187.6 KB Created: 2015-08-05 13:55:28 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9952a9456ce680e24572d77d094af8dc SHA-1: 5a0214691fbd35651cc1cb331e0adde8567c4305 SHA-256: 50d32433164d944619ff9075a3f46bbd51d5cc314ad6c317e719ffb8c000650d
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, botcraftman.ru. This indicates the document is designed to lure users to a potentially harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, and the document body was truncated and uninformative.

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%B0%D0%BD%D1%82%D0%B8%D0%B2%D0%B8%D1%80%D1%83%D1%81+%D0%BA%D0%B0%D1%81%D0%BF%D0%B5%D1%80%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BF%D1%80%D0%BE%D0%B1%D0%BD%D1%83%D1%8E+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8E&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304790_seriynuyy_nomer_photoshop_cs6_extendedzip.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304596_skachat_igru_18_stalnuyh_koles_po_dorogam_ukrainuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304629_hasp_device_driver_v4102522.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024a0b.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A0B 3556 bytes
font_01_sfnt_off0002578e.bin
208cbd019ab1437c890cb8315421f7a7b2cab1b2550e155a849a3980b95c55d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2578E 15208 bytes
font_02_sfnt_off00028660.bin
4ae165705ecc41720893a92c6e94e3ee89b3be36a12e4a920505046f59c61edc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28660 14468 bytes
font_03_sfnt_off0002b10e.bin
89617801f2b35e961196766394418d1dbbc5ee036a6fbe31d6b0cd638443d4d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B10E 6820 bytes
font_04_sfnt_off0002c4ad.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4AD 6084 bytes
font_05_sfnt_off0002d442.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D442 3752 bytes

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