Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9649b5790aeb965…

MALICIOUS

PDF

186.3 KB Created: 2015-08-08 09:41:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f683065258fb3e0150ccbfd6a51d8fc4 SHA-1: 04705818a334276445b16584eba307739c9680b4 SHA-256: b9649b5790aeb965997467b72e5e615623861e0ea10462e4913a4ccba768afa9
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a direct link to a known malicious redirector infrastructure. This indicates the document is likely a lure to direct users to a malicious website for phishing or malware delivery. No scripts were extracted from this sample.

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%BC%D0%B5%D1%82%D1%80%D0%BE+%D0%BB%D1%83%D1%87+%D0%BD%D0%B0%D0%B4%D0%B5%D0%B6%D0%B4%D1%8B+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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://img0.liveinternet.ru/images/attach/c/6//4384/4384059_skachat_blank_ttn_ukraina.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383821_d3dx9_31dll.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383706_skachat_pesni_iz_indiyskogo_filma_lyubov_bez_slov.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002448a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2448A 3556 bytes
font_01_sfnt_off0002520d.bin
d49818439db75af5ca80b309befd7da029f1afa73b1424e366db78be9b8823a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2520D 15320 bytes
font_02_sfnt_off000281ca.bin
c457fcfaab6f548331a7572fefd0d96ae260c7787e9dff2b51ae1aa36573dbb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x281CA 14468 bytes
font_03_sfnt_off0002ac79.bin
c8110c56b03b9b514d5d9f8708175860d443cae1a71a6e04638a051cc7e378b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC79 6640 bytes
font_04_sfnt_off0002bf83.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF83 6084 bytes
font_05_sfnt_off0002cf18.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF18 3752 bytes

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