Malicious PDF — malware analysis report

Static analysis result for SHA-256 e38be3626f7aed43…

MALICIOUS

PDF

188.9 KB Created: 2015-07-25 19:49:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 1451c57a4f28e088f2b5e01966954dbd SHA-1: fc92979d481556a6738d9f9a379d1a0eb4a387e4 SHA-256: e38be3626f7aed43b42d744b531b698f25800c95c2f7a37b0faa5807bf5665d8
90 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, botcraftman.ru. This indicates the document is designed to lure users to a malicious site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted from this sample.

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=%D1%8E%D1%80%D0%B8%D0%B9+%D0%BD%D0%B8%D0%BA%D0%B8%D1%82%D0%B8%D0%BD+%D1%81%D0%B5%D1%80%D0%B8%D1%8F+%D1%82%D1%80%D0%BE%D0%B5+%D0%B8%D0%B7+%D0%BB%D0%B5%D1%81%D0%B0+%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+fb2+%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://img0.liveinternet.ru/images/attach/c/5//4192/4192060_kak_zaregistrirovatsya_v_instagrame_s_kompyutera_bez_programm.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202818_skachat_chit_na_rust.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4203/4203812_zvuk_letyaschego_samoleta_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024c18.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C18 3556 bytes
font_01_sfnt_off0002599b.bin
5b17cc6c345aa96ccf003825abed7e4e52924660bc78715410e86b45b16a4140		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2599B 15108 bytes
font_02_sfnt_off00028913.bin
54c8275de8a0e2905444cf9c7428f34cd9195fdd484d48b502a7c2903cf15eb5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28913 14888 bytes
font_03_sfnt_off0002b518.bin
55a404ad37379abe687c915a139ab9cd96d453680056f0d0772b450046d1fe93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B518 7152 bytes
font_04_sfnt_off0002c9e5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C9E5 6084 bytes
font_05_sfnt_off0002d97a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D97A 3752 bytes

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