Malicious PDF — malware analysis report

Static analysis result for SHA-256 e71632883591f000…

MALICIOUS

PDF

183.3 KB Created: 2015-08-08 09:59:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fdd424834aa3594781ee845da8c1fefb SHA-1: 30e5db904b747ca67953f8a1787b17c7530e40d9 SHA-256: e71632883591f000f4353c496d5af4c7be6e7431c74674aad4e7366f72f41ebc
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL, http://botcraftman.ru/, is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware download site. No scripts were extracted, and the document body was not parsable.

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=nokia+6233+%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384597_tatyana_korsakova_ne_budi_vedmu_skachat_besplatno_fb2.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384304_detskaya_poliklinika_almetevsk_raspisanie_uchastkov.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384075_skachat_dark_souls_2_cherez_torrent_na_pc_na_russkom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023b2e.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23B2E 3556 bytes
font_01_sfnt_off000248b1.bin
cca76149fe09a92ac23d3007648d1ab2692b8d60f847b1680e72081b2b915af9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248B1 14480 bytes
font_02_sfnt_off000275dd.bin
7c1e9fef75a95442e95e63f947f7e48fe3610e8331b1af0cc86123ef272a20ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0x275DD 14520 bytes
font_03_sfnt_off0002a0b9.bin
0b3bff6d476969718eebb5057f7bb3ee0aa2de21d601f07cadafb6ab78eabc41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A0B9 6552 bytes
font_04_sfnt_off0002b34e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B34E 6084 bytes
font_05_sfnt_off0002c2e3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2E3 3752 bytes

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