Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba7033ec463bf1c6…

MALICIOUS

PDF

186.9 KB Created: 2015-08-05 22:37:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 26d2363ba9910c7b7d70ee2865a0d3db SHA-1: 02a8e00ec6f31c2fb0c47aca19743d81538d8030 SHA-256: ba7033ec463bf1c6bd0cccca803def4aae6430f1938447fa0f16a58c3fd72aa6
92 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient to classify the attack pattern.

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%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D0%B5%D1%81%D0%BD%D0%B8+%D1%88%D1%83%D1%84%D1%83%D1%82%D0%B8%D0%BD%D1%81%D0%BA%D0%BE%D0%B3%D0%BE+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%B8+%D0%B1%D0%B5%D0%B7+%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B0%D1%86%D0%B8%D0%B8&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4308/4308684_dogovor_kupli_prodazhi_gotovogo_biznesa_obrazec.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307422_skachat_kameru_dlya_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307192_shel_so_sluzhbuy_kazak_molodoy_tekst_pesni.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000246c2.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246C2 3556 bytes
font_01_sfnt_off00025445.bin
e71a41fb90b1690ec6c7b0fdb715545c73c2ee244c8e57b9c2186de4e9ac6aa1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25445 14764 bytes
font_02_sfnt_off000282a8.bin
8c5e5bc4674cee60ec6c1619e60533ff44be00efca6b5f228c587d2f19a61a12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x282A8 14520 bytes
font_03_sfnt_off0002ad77.bin
f66e2a64de1780248fe13e6657a9da7b1bd379c0e5de7004876b9a9a506aff3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AD77 7004 bytes
font_04_sfnt_off0002c1cc.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1CC 6084 bytes
font_05_sfnt_off0002d161.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D161 3752 bytes

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