Malicious PDF — malware analysis report

Static analysis result for SHA-256 034cd9bedde66ac5…

MALICIOUS

PDF

184.8 KB Created: 2015-08-08 09:39:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 725e8160724889f00c781e20aeec1c7a SHA-1: 1b7d759c98c71258359c570f74046cc49bff80e0 SHA-256: 034cd9bedde66ac596739686af1cf63e7d4ef1d81b96186e25284003b6323fd8
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a link to a known malicious redirector, botcraftman.ru, which is likely intended to lure the user into downloading malware or visiting a phishing site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted from this sample, but the embedded URL is sufficient evidence of malicious intent.

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=civcity+rome+%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//4383/4383795_1s_buhgalteriya_uproschenka_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383724_riven_gayd_2015.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384116_sintaksicheskiy_razbor_predlozheniya_obrazec.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023dc3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23DC3 3556 bytes
font_01_sfnt_off00024b46.bin
08c8ccda98fda9d5090a244bd0e83903f2944951939cfa9d43004f9f641f9121		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B46 14568 bytes
font_02_sfnt_off000278e2.bin
53dd217599c666b4dd012f43c57c4b9cea2569ea9dd2359976622a1aff8995e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x278E2 15012 bytes
font_03_sfnt_off0002a4ac.bin
6e6494955a556d9b81a0ecbcccfc579b272b5013bdcf4fb5265721aad9dfbce6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A4AC 7104 bytes
font_04_sfnt_off0002b956.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B956 6084 bytes
font_05_sfnt_off0002c8eb.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C8EB 3752 bytes

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