Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ff5be040d729add…

MALICIOUS

PDF

183.8 KB Created: 2015-07-24 09:02:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cb35ffa0f96562f34c22a586dae32ca5 SHA-1: fdc70d8f8f68559af8df919f39b1394600b4a889 SHA-256: 5ff5be040d729add5767377388c57194af9978aa1e14d324d95d405ab8921444
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is a strong indicator of malicious intent. The ML classifier also flagged this PDF with high confidence. The document body appears to be truncated and contains binary data, suggesting it is not intended for direct user interaction but rather to host the malicious link.

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=viking+botovod+pro+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188314_adobe_after_effects_cs6_skachat_torrent_32bit.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185043_skachat_indikator_zaryada_batarei_na_telefon_samsung.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184650_drug_vokrug_dlya_nokia_n8.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_off00023af9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23AF9 3556 bytes
font_01_sfnt_off0002487c.bin
4da0d9e4556de5207636f70bb79c0e827271bc04b07831d2a69c33580b705a87		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2487C 14656 bytes
font_02_sfnt_off00027617.bin
0ccf68e52fd4178974e493e1d1e645860a335fb01ccf3a19947016017e34c60b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27617 14812 bytes
font_03_sfnt_off0002a1e9.bin
2ccc3f43b6b17cb47cf2ab2722925c6c2a2e222f507f6483f91583faa70ab821		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A1E9 6808 bytes
font_04_sfnt_off0002b57f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B57F 6084 bytes
font_05_sfnt_off0002c514.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C514 3752 bytes

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