Malicious PDF — malware analysis report

Static analysis result for SHA-256 d680cb7f3dedb62d…

MALICIOUS

PDF

186.0 KB Created: 2015-07-24 15:43:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ad1123361c2083fa14635d3239dd6d36 SHA-1: 7d6f72c7c54320961e760f4b97fdf342367acb9e SHA-256: d680cb7f3dedb62d71bade37de4a2f7a2f9559606a467e6d0a0191a57b2881bf
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 http://botcraftman.ru/... is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. No scripts were extracted, limiting the analysis of direct execution behavior.

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%A0%D0%B0%D1%81%D0%BF%D0%B8%D1%81%D0%B0%D0%BD%D0%B8%D0%B5+%D0%BC%D0%B0%D1%80%D1%88%D1%80%D1%83%D1%82%D0%BE%D0%BA+%D0%BA%D0%BE%D0%BF%D0%B5%D0%B9%D1%81%D0%BA+%D1%87%D0%B5%D0%BB%D1%8F%D0%B1%D0%B8%D0%BD%D1%81%D0%BA+353&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184569_erd_commander_dlya_windows_xp_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191540_kontrolnaya_rabota_po_matematike_6_klass_s_otvetami_vilenkin.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191725_skachat_cherez_torrent_futazhi.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243e7.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243E7 3556 bytes
font_01_sfnt_off0002516a.bin
3d5c476d8dfefb605bfa149a4fedee8d45c3ab328604305f38eda15f09920cdf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2516A 14480 bytes
font_02_sfnt_off00027e79.bin
cec6d04440c3ecd9a04eca057ba6c5e76deffe2d05089634fd518bc1cc23c6ec		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E79 14700 bytes
font_03_sfnt_off0002a9cc.bin
e36c335f810684d2ce5be9a055718ffcb03308ab2079bb455665b724b5757f67		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9CC 7044 bytes
font_04_sfnt_off0002be3c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE3C 6084 bytes
font_05_sfnt_off0002cdd1.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDD1 3752 bytes

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