Malicious PDF — malware analysis report

Static analysis result for SHA-256 12c4f76ed649250d…

MALICIOUS

PDF

185.4 KB Created: 2015-07-25 23:51:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 7297757e0ddc5ed08432876038520c31 SHA-1: a0b790a7e8506e25ea97fba4534b812b90e1ede3 SHA-256: 12c4f76ed649250d586630bbd2cba0b2cbd24b4979bf5bd9f074c482d785d2c0
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, http://botcraftman.ru/, is likely part of a phishing or malware distribution chain. No scripts were extracted, but the presence of a malicious link strongly suggests an attempt to lure the user to a harmful 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%B3%D0%B8%D0%B0+2015+%D0%BF%D0%BE+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC%D1%83+%D1%8F%D0%B7%D1%8B%D0%BA%D1%83&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4208/4208098_android_dlya_chaynikov.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4207/4207390_skachat_igru_formula_1_2011_torrent_na_russkom_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192152_rezultatuy_egye_po_russkomu_yazuyku_2015_altayskiy_kray.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_off000241a0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241A0 3556 bytes
font_01_sfnt_off00024f23.bin
ca251efe90ba8269e72275e7df8af9ade4fdf0c7b7545abceacb36e22c552193		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F23 14812 bytes
font_02_sfnt_off00027d6b.bin
0d510f439a73eae665af138ecef4372c9b1dc55d02d5656a9604ccfb30fc5e3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D6B 14640 bytes
font_03_sfnt_off0002a89e.bin
2e90148613f9ef150282d22ffc38a3b569d28057583a0de52955c7d79f792e6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A89E 6684 bytes
font_04_sfnt_off0002bbec.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBEC 6084 bytes
font_05_sfnt_off0002cb81.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB81 3752 bytes

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