Malicious PDF — malware analysis report

Static analysis result for SHA-256 681ade868124c853…

MALICIOUS

PDF

185.4 KB Created: 2015-08-08 12:20:48 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: da92f878e208eab4d57be14b5bb6ad41 SHA-1: e48e3e84c12b8709ebf1c0b00c6fae4f9258e0d8 SHA-256: 681ade868124c85350519bbc1e4e0d813f8fe534c6fce36824108c21d9860cac
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, http://botcraftman.ru/, is known to host malicious content. While no scripts were extracted, the presence of this malicious link strongly suggests an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

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=gta+1997+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383754_matematika_3_klass_chast1_muravva_urban_reshebnik.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4385/4385412_yemulyator_ps2_dlya_pc_svr11_mod_save_pcsx2_099_r5156.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4226/4226849_microsoft_word_skachat_besplatno.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241db.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241DB 3556 bytes
font_01_sfnt_off00024f5e.bin
48f52d7233ef92d96a1d6beb026b508c2d0643a0a4a071865b2e29fceff3c17f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F5E 14668 bytes
font_02_sfnt_off00027cef.bin
0c5e89b99e35c375bd0b14a7626d525a832670f4930011daf5749cdb583195b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CEF 14772 bytes
font_03_sfnt_off0002a8ae.bin
7d59052a3318fe736aa103e4b814e836f3b60edd41ca0db321cf34fee6191da3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8AE 6632 bytes
font_04_sfnt_off0002bbc0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBC0 6084 bytes
font_05_sfnt_off0002cb55.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB55 3752 bytes

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