Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e65eed2a86e238f…

MALICIOUS

PDF

186.4 KB Created: 2015-07-24 09:19:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 6120d2bf05100fadc237e1dfd5d1194c SHA-1: 0740335a524c69d516ea8c2cbe19336c39a363d1 SHA-256: 3e65eed2a86e238f82888997b5e761697fa798d479a9dc3b8254c53739033f3d
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 PDF's primary purpose is to lure the user to a malicious site. ClamAV also detected this file as Pdf.Dropper.Agent, further supporting its malicious nature. No scripts were extracted, but the embedded URL is sufficient evidence of a malicious redirector.

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-8786532-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8786532-0
  • 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=garrys+mod+13+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+repack+%D0%BC%D0%B5%D1%85%D0%B0%D0%BD%D0%B8%D0%BA%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185370_windows_movie_maker_dlya_windows_7_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189167_arhikad_15_skachat_besplatno_russkaya_versiya_bez_registracii.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190014_skachat_vse_albomuy_ritm_dorog_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a95c.bin
284bdff04d5a1ea74c93ab518d348e1b628dc4f2f7955ed1373c85aea237149b		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A95C 7652 bytes
font_00_sfnt_off0002411f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2411F 3556 bytes
font_01_sfnt_off00024ea2.bin
c490874641b62950d26e34ebce0c196fc49840b2f1d668f5db5e194394048488		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EA2 15184 bytes
font_02_sfnt_off00027d82.bin
a033c134ca20c7984d74f329c9e193587c058b9a8359140a69e9294dcfe1ab2e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D82 14848 bytes
font_04_sfnt_off0002bff2.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFF2 6084 bytes
font_05_sfnt_off0002cf87.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF87 3752 bytes

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