Malicious PDF — malware analysis report

Static analysis result for SHA-256 933eee72eddc8e72…

MALICIOUS

PDF

184.7 KB Created: 2015-08-10 05:41:05 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 29652be8b566a87c036c891edde51d0f SHA-1: 99785a6fc47865b25e30fb0c93a4a873ac9f6cd4 SHA-256: 933eee72eddc8e727e23da98375b5d8a52303c542a0d8784c3e4883b4145a97d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL, http://botcraftman.ru/..., is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted from this sample.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%85%D0%B0%D0%BA+%D0%B4%D0%BB%D1%8F+%D0%B2%D0%BE%D1%80%D0%BB%D0%B4+%D0%BE%D1%84+%D1%82%D0%B0%D0%BD%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4391/4391820_skachat_filmuy_dlya_plansheta_android_40_800x480.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4396/4396701_fruto_nindzya_5_na_flay_e154.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4433/4433217_skachat_chituy_dlya_call_of_duty_mw2.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002409f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2409F 3556 bytes
font_01_sfnt_off00024e22.bin
99f29fd58238246a4daa1993b01f59560b10e828c3a57c2a44402783b14f453b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24E22 14380 bytes
font_02_sfnt_off00027ae2.bin
a6626c0bd3595dc776735a93968cf26fa9368d0e017313712711ccf7ec06347e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27AE2 14532 bytes
font_03_sfnt_off0002a5d2.bin
48a9af757a571bb8004fababcf49d7e30879d2c17c1d48f5007a17632f8adbce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5D2 6608 bytes
font_04_sfnt_off0002b8ce.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B8CE 6084 bytes
font_05_sfnt_off0002c863.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C863 3752 bytes

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