Malicious PDF — malware analysis report

Static analysis result for SHA-256 2017c18722e16db2…

MALICIOUS

PDF

186.9 KB Created: 2015-07-23 21:23:29 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 7de54c0c6c3adc680511cb1213f85bba SHA-1: 6540011bcb3262c7cb004e8e22dee53624ec4011 SHA-256: 2017c18722e16db211960c6db2d0458b1f48ad63e39704ea7ca70f81c518975c
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates the document's primary purpose is to lure the user to a potentially harmful external site. ClamAV also detected this file as Pdf.Dropper.Agent-8785973-0, further confirming its malicious nature. No scripts were extracted, but the embedded URL is sufficient evidence for a malicious redirector attack pattern.

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-8785973-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8785973-0
  • 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=nero+photosnap+viewer+%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+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184844_tabel_vuyhoda_na_rabotu_blank_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184432_chuzhestranka_2_sezon_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184715_primeruy_nachisleniya_otpusknuyh_v_2015_godu.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ab20.bin
3cc0f18812b8c15c7f91f00cb476d64b557c68c31514f3cd93aed702011ba380		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AB20 7640 bytes
font_00_sfnt_off00024347.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24347 3556 bytes
font_01_sfnt_off000250ca.bin
214069b509ca5bde98b7b0f3078e1660b111ac2e9c6b42d3de67b935386bbd20		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250CA 15052 bytes
font_02_sfnt_off00027f52.bin
75e497321af479b814d2306239dfe3185bb9bff30590c9cfd26001c090cee400		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27F52 14852 bytes
font_04_sfnt_off0002c1a0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1A0 6084 bytes
font_05_sfnt_off0002d135.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D135 3752 bytes

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