Malicious PDF — malware analysis report

Static analysis result for SHA-256 9686907d8d51fb6c…

MALICIOUS

PDF

184.0 KB Created: 2015-07-25 09:29:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d57b269a89e77e6fabd8343910d647f4 SHA-1: 34df4e6a2aba8d93671c2c3b04b703ccb0f1cbd4 SHA-256: 9686907d8d51fb6cb01721f7692869be51c807e12f26d9835fc01364a9819b85
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1204.001 Malicious Link

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a malicious website.

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%BB%D1%83%D1%87%D1%88%D0%B8%D0%B5+%D1%85%D0%B8%D1%82%D1%8B+%D1%80%D0%B0%D0%B4%D0%B8%D0%BE+%D0%B2%D0%B0%D0%BD%D1%8F+11+2013+%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://img1.liveinternet.ru/images/attach/c/5//4197/4197471_bot_dlya_tyuryagi_na_uron_recidivistam.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198503_skachat_maynkraft_172_na_pk.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198719_skachat_igru_gta_kriminalnaya_rossiya_beta_2_cherez_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023c16.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C16 3556 bytes
font_01_sfnt_off00024999.bin
b19a98527e08e59efafd7ef8c1998a723199657b6c631f0c6e93d0d394d94b8c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24999 14636 bytes
font_02_sfnt_off00027748.bin
d83c0ea1267dcf4b97872b349452426f6e83b1afad4ffb2b3ca1cb8309eb2610		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27748 14588 bytes
font_03_sfnt_off0002a253.bin
eaac4269368acccf4112def93852405fb8d1ab1b1359c9cd8233c5217048dd4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A253 6888 bytes
font_04_sfnt_off0002b652.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B652 6084 bytes
font_05_sfnt_off0002c5e7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5E7 3752 bytes

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