Malicious PDF — malware analysis report

Static analysis result for SHA-256 4a2fa5548162afaa…

MALICIOUS

PDF

188.0 KB Created: 2015-07-25 05:49:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c6385345992e2ce618b58f8f6cbc15aa SHA-1: dec9bee57db53b8fcb2d8f2d7ee609abdbd456bb SHA-256: 4a2fa5548162afaaf6a1e0cdcb870f64d2ed8bc61dd576a238653fa6bfc047f3
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical finding for a malicious redirector link. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. No scripts were extracted, but the presence of a malicious link suggests a phishing or malware delivery attempt.

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-8786803-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8786803-0
  • 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=%D0%97%D0%B2%D1%83%D0%BA%D0%B8+%D0%B2+%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B5+wav+%D0%BF%D1%80%D0%BE%D1%81%D0%BB%D1%83%D1%88%D0%B0%D1%82%D1%8C+%D0%B8+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4197/4197100_pnevmoapparat_klapannuyy_detalirovanie.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184944_obschie_bani_v_germanii_foto_video.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192994_moy_muzh_inoplanetyanin_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248c1.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248C1 3556 bytes
font_01_sfnt_off00025644.bin
223d7da5dbca85a64aa694dcc8cfabd10514982c21571e9634332528a2da9c49		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25644 15000 bytes
font_02_sfnt_off000284d1.bin
228ec394791f67e571fca6de31779650d21d325726515c23db46e57fd3610300		 pdf-font-stream PDF embedded font (sfnt) at offset 0x284D1 14900 bytes
font_03_sfnt_off0002b0ca.bin
23a5711bd67cb0498c2965ab7e17630bfaab8d20c2fe3733af095dc71b4a5854		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0CA 7324 bytes
font_04_sfnt_off0002c63b.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C63B 6084 bytes
font_05_sfnt_off0002d5d0.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5D0 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.