Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c192f2df4e1f8e4…

MALICIOUS

PDF

184.3 KB Created: 2015-07-25 06:29:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 4cca912a13ad10096e1502a4aaa9579f SHA-1: d31584bc9d57ef1aa1a7bac9a9778af9bd51097e SHA-256: 4c192f2df4e1f8e4d514a70f35c19dad28664112de6f67fb63683e9ee1e769ff
120 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV with the signature Pdf.Dropper.Agent-8786832-0. A critical heuristic firing identified a PDF_MALICIOUS_REDIRECTOR_LINK pointing to botcraftman.ru, indicating the document's primary purpose is to redirect users to malicious infrastructure. No scripts were extracted, and the document body was truncated, but the presence of the malicious URL is sufficient evidence for this assessment.

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8786832-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8786832-0
  • 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%A0%D0%B0%D0%B7%D0%B4%D0%B5%D0%BD%D1%8C%D1%82%D0%B5+%D0%BB%D1%8E%D0%B1%D0%BE%D0%B3%D0%BE+%D1%87%D0%B5%D0%BB%D0%BE%D0%B2%D0%B5%D0%BA%D0%B0+%D0%BD%D0%B0+%D1%84%D0%BE%D1%82%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4198/4198523_ocenka_yeffektivnosti_investicionnuyh_proektov_uchebnik.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4193/4193478_powerpoint_2010_skachat_besplatno_russkaya_versiya_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185206_dsdtse_skachat_windows.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e0e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E0E 3556 bytes
font_01_sfnt_off00024b91.bin
899392dac0bc2c4eedc7d9a25c5466a673d90eaeb10bc7789d0b26f8a31e90fb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B91 14392 bytes
font_02_sfnt_off000278c3.bin
13c118e1b16d932ee74b7fb21ba03c9b98cbe48dfb6f44f054098b58aeb7df02		 pdf-font-stream PDF embedded font (sfnt) at offset 0x278C3 14468 bytes
font_03_sfnt_off0002a373.bin
5dfe9400b9e3ca1921113530757110082cac14477117527dde4f89b49fede65e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A373 6876 bytes
font_04_sfnt_off0002b745.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B745 6084 bytes
font_05_sfnt_off0002c6da.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6DA 3752 bytes

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