Malicious PDF — malware analysis report

Static analysis result for SHA-256 46308d1920ba4e79…

MALICIOUS

PDF

183.3 KB Created: 2015-07-24 11:53:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 20cece7c4c5d1138cf7cfa717f784c49 SHA-1: aaab6fa66807c4483fa594b6bce084c3370b76b5 SHA-256: 46308d1920ba4e79ab8e6f6deacacfbf6279654c7de3dfd940a9f8f57a657e60
92 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 strongly indicated 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, and the document body was truncated and uninformative.

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%A2%D1%83%D0%B3%D0%B0%D0%BD+%D0%BA%D0%BE%D0%BD%D0%B3%D1%8D+%D1%82%D0%B0%D1%82%D0%B0%D1%80%D1%87%D0%B0+%D1%81%D1%86%D0%B5%D0%BD%D0%B0%D1%80%D0%B8%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189620_dosrochnoe_egye_po_informatike_2015_variantuy.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191869_page_hack_mn_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4188/4188205_skachat_nero_besplatno_polnuyu_versiyu.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023c2a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23C2A 3556 bytes
font_01_sfnt_off000249ad.bin
ec3d89d473403bd641c972925541bea9c3ba47470f1abbcc79bc19af3f41601b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x249AD 14576 bytes
font_02_sfnt_off00027697.bin
2faf238a7982558102f008fa2e03cbd823800727545a7f10afda32250c8cbf2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27697 14468 bytes
font_03_sfnt_off0002a14a.bin
e9c436cb17be322e98f159c0bbdb062e8beb7107b16587efa5e7ddbda62a6d0b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A14A 6408 bytes
font_04_sfnt_off0002b375.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B375 6084 bytes
font_05_sfnt_off0002c30a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C30A 3752 bytes

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