Malicious PDF — malware analysis report

Static analysis result for SHA-256 b08c1db226b12d92…

MALICIOUS

PDF

188.0 KB Created: 2015-07-24 05:05:59 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d9dded4b9d3757c20af5f7a2e37cf660 SHA-1: 1a9a36e3982173ba6afe1147279435372cab9e84 SHA-256: b08c1db226b12d927263308ca18ddcfe02f4a3bc508e3bea5a538c396e99a058
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 alert for a malicious redirector link and a high ML classifier score. ClamAV also identified it as Pdf.Dropper.Agent-7435147-0. The embedded URL, http://botcraftman.ru/..., is confirmed as a malicious redirector. This suggests the document's primary purpose is to lure users to a malicious site, likely for further exploitation or malware delivery.

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-7435147-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7435147-0
  • 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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%83+1000+%D0%BD%D0%B0+%D0%BF%D0%BB%D0%B0%D0%BD%D1%88%D0%B5%D1%82+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+hd&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185562_programma_dlya_didzheev_skachat_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185619_chertezhi_krolichih_kletok.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185588_new_super_mario_bros_u_skachat_torrent_na_pc.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024bab.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BAB 3556 bytes
font_01_sfnt_off0002592e.bin
bdaac9fe11bada8f723b69a711cb178d1c5d81eb9dac9e856a5771885816d3b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2592E 14820 bytes
font_02_sfnt_off0002870d.bin
b38e087320257b4803890b36eb66bad48cd744525511b5272440b3e3db59428e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2870D 14624 bytes
font_03_sfnt_off0002b1fe.bin
55971c6128370e5a93ea5dda65a010ac367cb154ecf144f9cc7fad0f86bb9881		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B1FE 6996 bytes
font_04_sfnt_off0002c655.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C655 6084 bytes
font_05_sfnt_off0002d5ea.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D5EA 3752 bytes

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