Malicious PDF — malware analysis report

Static analysis result for SHA-256 c8bb0c0a44234246…

MALICIOUS

PDF

185.1 KB Created: 2015-08-08 10:02:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ed23e0c693c969db7947124e9214232a SHA-1: c68a136d05de8363557704ae1b1182ca30b142c6 SHA-256: c8bb0c0a44234246f717bce16a5deb3275dba6bf3dd41bacc93cec9ffa82c42a
152 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical finding for a link to known malicious redirector infrastructure. The ClamAV detection also identified it as a dropper. The embedded URL points to botcraftman.ru, which is classified as malicious. This suggests the document's primary purpose is to redirect users to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7627707-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7627707-0
  • 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%88%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD%D0%BD%D0%BE%D0%B3%D0%BE+%D1%80%D0%B0%D0%B7%D0%B3%D0%BE%D0%B2%D0%BE%D1%80%D0%B0+%D1%81+%D0%BA%D0%BB%D0%B8%D0%B5%D0%BD%D1%82%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383776_pavel_bosinskiy_begstvo_iz_raya.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383843_skachat_sovetuy_dlya_nachinayuschego_yuvelira.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384262_assassins_creed_2_skachat_torrent_na_psp.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024264.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24264 3556 bytes
font_01_sfnt_off00024fe7.bin
78831f27faa28141a0d1401efd7dd3c12ba6d35ffbf6b592d7bdfebd7d3087d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24FE7 14124 bytes
font_02_sfnt_off00027c07.bin
a20ef4c3db2d6f25387849681f2ec3c5b7f73c2c58e06f1e72108716df46be65		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C07 14520 bytes
font_03_sfnt_off0002a6e1.bin
c28bdd303966ea48fb0dc17b2999c70aa4907c1b6b6918bc870b1634fa82e888		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6E1 6816 bytes
font_04_sfnt_off0002ba7f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA7F 6084 bytes
font_05_sfnt_off0002ca14.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA14 3752 bytes

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