Malicious PDF — malware analysis report

Static analysis result for SHA-256 c4e4a6cecd6ba45e…

MALICIOUS

PDF

184.8 KB Created: 2015-07-24 00:16:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 40f33b27ae48d2fdf807de60ae53ea9b SHA-1: d25adb24c2eaa66ab8c5f3744c8c758ca25b0e27 SHA-256: c4e4a6cecd6ba45e79e0ba663eea8d1cd56759f67c0f44036e9e1f14d07adb4e
60 Risk Score

Malware Insights

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

The PDF file contains an embedded link to a known malicious redirector, http://botcraftman.ru/. This heuristic indicates the document is designed to redirect users to a potentially harmful website. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure. The file was authored using wkhtmltopdf, which is sometimes used to generate malicious PDFs.

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%A1%D0%B1%D0%BE%D0%B9+%D0%BA%D0%BE%D0%BD%D0%B2%D0%B5%D1%80%D1%82%D0%B5%D1%80%D0%B0+%D0%BF%D1%80%D0%B8+%D0%BE%D1%82%D0%BA%D1%80%D1%8B%D1%82%D0%B8%D0%B8+%D1%84%D0%B0%D0%B9%D0%BB%D0%B0+xlsx&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184528_skachat_transformeruy_praym_4_sezon_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184959_viktor_suvorov_oblom_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185453_obrazec_otcheta_na_1_kategoriyu_rentgenolaboranta.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a560.bin
cb4bf056e8dc4922ea7e5666ae110afa5e292dc2cf8e9223e955bd17e45bcf61		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A560 6976 bytes
font_00_sfnt_off00023f9f.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F9F 3556 bytes
font_01_sfnt_off00024d22.bin
b32f94e1fb2bdd7299d5ef01d245c41e02477fbfd5fbbdeb91ca7464e1fdd929		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D22 14420 bytes
font_02_sfnt_off00027a6f.bin
40e3d30ebf2c0b5d27e2f2d70f69feacbe5ac2fbcc9ea0e5458d1fb8ec6c38df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A6F 14532 bytes
font_04_sfnt_off0002b991.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B991 6084 bytes
font_05_sfnt_off0002c926.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C926 3752 bytes

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