Malicious PDF — malware analysis report

Static analysis result for SHA-256 f452d531cb87e6e0…

MALICIOUS

PDF

187.3 KB Created: 2015-07-24 11:39:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b43de6bb179e7de3a6b62e066efdbbe0 SHA-1: aa48973f91c166d254b4623b063125cbbdaad7db SHA-256: f452d531cb87e6e0725fe81bdbcc9b0e68d339ffca05c1c0ae86090f1f139b6d
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, specifically for containing a link to a known malicious redirector. The embedded URL `http://botcraftman.ru/...` is highly suspicious and likely serves as a lure to a phishing or malware distribution site. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact user-facing content.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BC%D0%B0%D0%B9%D0%BD%D0%BA%D1%80%D0%B0%D1%84%D1%82+%D1%81+%D0%BC%D0%BE%D0%B4%D0%BE%D0%BC+%D0%BD%D0%B0+%D1%81%D1%83%D0%BC%D0%B5%D1%80%D0%B5%D1%87%D0%BD%D1%8B%D0%B9+%D0%BB%D0%B5%D1%81+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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//4189/4189232_raspisanie_avtobusov_na_lebedinskiy_gok_s_gubkina.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189348_programma_dlya_spama_v_gruppah_vk.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184820_crysis_2_teksturuy_vuysokogo_razresheniya_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024a40.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A40 3556 bytes
font_01_sfnt_off000257c3.bin
5a2b93f6f0566d8d74cb3ac82a3dd4d5c6a04dd78510a53965d6a26778433f5d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x257C3 14164 bytes
font_02_sfnt_off0002846d.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2846D 14468 bytes
font_03_sfnt_off0002af1f.bin
e0617fc7ae15681752c46cc382e8c59fb303949fe40c5a456f94ad501e42f4de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AF1F 6980 bytes
font_04_sfnt_off0002c375.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C375 6084 bytes
font_05_sfnt_off0002d30a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D30A 3752 bytes

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