Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7d5b56b6eef5478…

MALICIOUS

PDF

185.4 KB Created: 2015-08-05 13:29:24 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c699d264a016b5792c8ca209831a3eb2 SHA-1: 9343ae89d1c6541b6822f250545b5e46ad852125 SHA-256: f7d5b56b6eef5478246b165b27672b60ff65e4766dad1689265a7afc5489581c
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL points to 'http://botcraftman.ru/', which is associated with malicious redirection. This suggests the document is designed to lure users to a compromised site.

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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B8%D0%B3%D1%80%D1%83+%D0%B7%D0%B5%D0%BB%D0%B5%D0%BD%D0%B0%D1%8F+%D1%84%D0%B5%D1%80%D0%BC%D0%B0+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304518_knigi_na_android_v_formate_apk.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304499_skachat_gta_3_na_android_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304530_skachat_parkur_mod_dlya_gta_sa.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000241ff.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241FF 3556 bytes
font_01_sfnt_off00024f82.bin
a9419b27e6773869cad3caede0f1910047f6fe8e033520e3767ec8afdc07d94a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F82 14752 bytes
font_02_sfnt_off00027d38.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D38 14468 bytes
font_03_sfnt_off0002a7ea.bin
42b4427af332f640e394433a0cb092e02013de35e1bffa3b0051144c4effdd6a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7EA 6820 bytes
font_04_sfnt_off0002bbaf.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBAF 6084 bytes
font_05_sfnt_off0002cb44.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB44 3752 bytes

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