Malicious PDF — malware analysis report

Static analysis result for SHA-256 d35f3f93626a0619…

MALICIOUS

PDF

184.0 KB Created: 2015-07-25 00:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 31910ea5191155745b778dc61b4aab41 SHA-1: 4b48ce643c4ee29180195ff1517715eda3eb5661 SHA-256: d35f3f93626a0619d4ff805687509ac22ce55dc566dc9699b95afe627a9c746f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

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 associated with malicious redirection. No scripts were extracted, and the document body was not parsable.

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%B4%D0%B8%D0%B0%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%8B+uml+%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190002_shema_glissaduy_vpp_3_sheremetevo.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191947_warhammer_40000_dawn_of_war_dark_crusade_12_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194906_skachat_programmu_vzloma_v_kontakte_na_golosa_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023cb7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23CB7 3556 bytes
font_01_sfnt_off00024a3a.bin
be9cb885d90451bacf6c41d72604ebc5aa7dedd6de0d4ab4aa72bf4108d02b74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A3A 15432 bytes
font_02_sfnt_off000279dc.bin
1cf0866da566cea96e616adbe374b4dd7be17dc605e18463da5ac379dc802419		 pdf-font-stream PDF embedded font (sfnt) at offset 0x279DC 14632 bytes
font_03_sfnt_off0002a4ff.bin
d1f637802182b66f79e92eb900ad2b39508dcba8280e5a5041f9d21896b31164		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A4FF 6168 bytes
font_04_sfnt_off0002b656.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B656 6084 bytes
font_05_sfnt_off0002c5eb.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5EB 3752 bytes

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