Malicious PDF — malware analysis report

Static analysis result for SHA-256 223360291e11a620…

MALICIOUS

PDF

186.7 KB Created: 2015-08-06 08:58:12 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cdc195baaa47200a6226de4eebd1c1c5 SHA-1: 2788423f687645f9bdc8d434d2b8f4773acf5311 SHA-256: 223360291e11a62081659cced0e525a3c1186f56bc34a4f6a1947a68a1cbd398
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 a known malicious redirector. 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 download page. 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=%D1%81%D0%B0%D0%BC%D0%BE%D1%83%D1%87%D0%B8%D1%82%D0%B5%D0%BB%D1%8C+excel+2010+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305791_skachat_sims_2_robinzonuy_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305041_kvestuy_polnuye_versii_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304910_shema_moschnogo_reguliruemogo_bloka_pitaniya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002460a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2460A 3556 bytes
font_01_sfnt_off0002538d.bin
837d906b85c9ba1d65f53df3dc7589b166dac6f260aa8b99fe8ccdcecc7e9603		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2538D 14624 bytes
font_02_sfnt_off00028122.bin
fb149548ff63a7bacce9eafec708b196de630277d16351cf81a1e742b22b0dbe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28122 14532 bytes
font_03_sfnt_off0002ac0d.bin
94ae59661219473944f1cc56bb29265a54b4f9d90fea7ad40736fadf271f6405		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC0D 7100 bytes
font_04_sfnt_off0002c0e5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0E5 6084 bytes
font_05_sfnt_off0002d07a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D07A 3752 bytes

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