Malicious PDF — malware analysis report

Static analysis result for SHA-256 6da8e780da704f6b…

MALICIOUS

PDF

183.7 KB Created: 2015-08-08 16:57:52 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 651707e4641ca7309522ff93dce17149 SHA-1: e3818bc97f9578c08273ff8114e0c5f15592b8d6 SHA-256: 6da8e780da704f6b5de8c064efcf2593f633a238983b6cf38fc779f0fd47aff0
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 part of this malicious infrastructure. While no scripts were extracted, the presence of a malicious redirector suggests an attempt to lure the user to a compromised or malicious site, likely for further exploitation or credential harvesting.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+java+%D0%B2%D0%BA%D0%BE%D0%BD%D1%82%D0%B0%D0%BA%D1%82%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4247/4247126_medicinskoe_pravo_uchebnik_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4394/4394863_skachat_programmu_game_hacker.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384226_psihodelika_trans_2013_muzuyka_skachat_torrent.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_off00023cd7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23CD7 3556 bytes
font_01_sfnt_off00024a5a.bin
efc154612148a24b42389edbb40c73585b29079655afa39b4262de125103b96c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A5A 14600 bytes
font_02_sfnt_off0002777c.bin
cbe2e3b64501429849d0f8b00f9525732bf266a74e0a56dfdbc3e0519b76fd84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2777C 14612 bytes
font_03_sfnt_off0002a2b8.bin
04eb748a70404d23e7b6eb30d76ea0a15a0b6fe90dac7efce5b0c8971adcbb71		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A2B8 6400 bytes
font_04_sfnt_off0002b4d7.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B4D7 6084 bytes
font_05_sfnt_off0002c46c.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C46C 3752 bytes

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