Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ca0445b37b92aaa…

MALICIOUS

PDF

183.7 KB Created: 2015-08-08 13:16:46 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ac77fb3430ce225a51035e02a2b50c89 SHA-1: 399d38ae47d748aaf7e5d76e798a157cb200bde0 SHA-256: 0ca0445b37b92aaa81f6fe8b81969a7e1599d7fe410f91bccd8394cba0477e0d
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The embedded URL points to botcraftman.ru, which is associated with malicious activity. While no scripts were extracted, the presence of a malicious link suggests an attempt to lure the user to a harmful site, likely for phishing or malware delivery.

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=%D0%B2%D0%B7%D0%BB%D0%BE%D0%BC+%D0%B8%D0%B3%D1%80+%D0%BD%D0%B0+windows+phone&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384219_igruy_maynkraft_nastoyaschiy_ray_i_mir_derevni_igrat_seychas.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383688_magiya_veruy_klod_bristol_audiokniga_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4391/4391616_photoshop_cs6_2015_skachat_torrent.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a11c.bin
c3855677865216bce8a52d97079c3d764e674695bad3d28dbf849c670a6d2fdf		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A11C 6916 bytes
font_00_sfnt_off00023a89.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23A89 3556 bytes
font_01_sfnt_off0002480c.bin
ec244395374f677b0e7499d3dc36c1000e935c0d259849a769c6eb7d062ee9e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2480C 14660 bytes
font_02_sfnt_off000275f3.bin
18d0b039bb941942d0e4a102447e059728af771dc7f0559db033ffcbea8117ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x275F3 14852 bytes
font_04_sfnt_off0002b501.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B501 6084 bytes
font_05_sfnt_off0002c496.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C496 3752 bytes

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