Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd8a18820c6f5b1d…

MALICIOUS

PDF

184.0 KB Created: 2015-07-24 12:10:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8f208fa832b68b0f59b7b08a48e51ad3 SHA-1: 664e6f84d3890e7ab41fc99b6d78502a8f75913f SHA-256: bd8a18820c6f5b1db8db4fc00a2421d452ee35370014404b5dc2ac5544834998
60 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The file was generated by wkhtmltopdf, which can be used to create malicious PDFs. No scripts were extracted, but the presence of the malicious URL is a strong indicator of malicious intent.

Heuristics 2

  • 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.
  • 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=Hrefer+%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//4185/4185467_skachat_maynkraft_174_s_modami_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184746_vo_vse_tyazhkie_skachat_torrent_6_sezon.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184545_realnuye_kimuy_egye_po_matematike_2015_5_iyunya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023c44.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C44 3556 bytes
font_01_sfnt_off000249c7.bin
e5400e0b3614510dddbaad8cf2360840667188cea039abcd7d13c4d6031523ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249C7 14976 bytes
font_02_sfnt_off00027884.bin
f3fc69e71ac4b45eb1f12a1f493c61b08d0e3b704a1a3f43168a1600c8f4b930		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27884 14620 bytes
font_03_sfnt_off0002a39f.bin
1e4440a8146a92f78898f75f4acb50e546ad79706c2503d393fba8e6240d2754		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A39F 6560 bytes
font_04_sfnt_off0002b64c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B64C 6084 bytes
font_05_sfnt_off0002c5e1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5E1 3752 bytes

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