Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1135abb24943aa3…

MALICIOUS

PDF

184.1 KB Created: 2015-07-24 11:26:49 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 42d936051443adbd09d3b1032efdd18b SHA-1: 34c78ecc4174ee80da6a1f3147e84a7ec4f6ec94 SHA-256: d1135abb24943aa3e581f5b7e4f24ad1d133e5b51ace09cadd0eff6ee5bc5774
60 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a link to known malicious redirector infrastructure. The embedded URL 'http://botcraftman.ru/?lip&keyword=%D0%B1%D0%B8%D0%BB%D0%B5%D1%82%D1%82%D1%8B+%D0%BF%D0%B4%D0%B4+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8' is the primary indicator of malicious intent. No scripts were extracted, and the document body was largely unreadable binary data, suggesting the malicious functionality relies solely on the embedded link.

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%B1%D0%B8%D0%BB%D0%B5%D1%82%D1%8B+%D0%BF%D0%B4%D0%B4+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190862_root_explorer_skachat_android_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186913_skachat_adobe_flash_player_10_dlya_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184373_forma_m29_na_spisanie_materialov_obrazec.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e87.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E87 3556 bytes
font_01_sfnt_off00024c0a.bin
4cc57b178b53335ce99619969d2f5bd25436d6b07ccfe398d0fedce8e6b4a233		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24C0A 15140 bytes
font_02_sfnt_off00027a88.bin
163142455a5560a1f6759d0ead96de5f50a47653c77b96353ea21901cf90e8c4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A88 14468 bytes
font_03_sfnt_off0002a53c.bin
06ff7ec749aa4ac1638c51df3f9220e5498cc6375c45b7a881924006d99ac516		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A53C 6160 bytes
font_04_sfnt_off0002b678.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B678 6084 bytes
font_05_sfnt_off0002c60d.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C60D 3752 bytes

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