Malicious PDF — malware analysis report

Static analysis result for SHA-256 f355f55b5bb7dfc3…

MALICIOUS

PDF

187.7 KB Created: 2015-07-26 03:53:01 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 8e9731b8131cacf5afe4591a6b0ce085 SHA-1: 1fa6eff06f43fc9f3402d49188af00e56313544c SHA-256: f355f55b5bb7dfc3b2dd7e6dae538f492e6d9e290b76e76ef0ea815557fd5426
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 a known malicious redirector. This suggests the document is designed to lure users to a malicious website. No scripts were extracted, and the document body was not parsable, limiting further analysis of the exact lure. The primary IOC is the malicious URL.

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+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B2%D0%BB%D0%B0%D1%81%D1%82%D0%B5%D0%BB%D0%B8%D0%BD+%D0%BA%D0%BE%D0%BB%D0%B5%D1%86+%D0%B1%D0%B8%D1%82%D0%B2%D0%B0+%D0%B7%D0%B0+%D1%81%D1%80%D0%B5%D0%B4%D0%B8%D0%B7%D0%B5%D0%BC%D1%8C%D0%B5+2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4207/4207175_skachat_anglorusskiy_perevodchik_na_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184959_viktor_suvorov_oblom_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192395_cubase_5_skachat_torrent_windows_7_64_bit.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024a55.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A55 3556 bytes
font_01_sfnt_off000257d8.bin
ff7969f8135fcb5c3e2425efebd970b41b4f553a328008cac3978d473fc1bb5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x257D8 14884 bytes
font_02_sfnt_off000285fa.bin
1bdb34460530df544f3708516b9bff2a8899c1e4c5605cca86f0484fc167616c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x285FA 14468 bytes
font_03_sfnt_off0002b0ac.bin
359d6230c00ddad377ea6792556a4729ad291c008cdac94f03821e3031f55eff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B0AC 7036 bytes
font_04_sfnt_off0002c524.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C524 6084 bytes
font_05_sfnt_off0002d4b9.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D4B9 3752 bytes

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