Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bbd004b0bfd27d3…

MALICIOUS

PDF

186.8 KB Created: 2015-07-24 00:48:09 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0a6c8c385c847465440c33e92302220a SHA-1: 6e72d17e53263ca3fd6187b9ed44d564f9935dd6 SHA-256: 2bbd004b0bfd27d3dd104f327da5b07b19f091a82d5fd92ccdc29a10e8197e2d
90 Risk Score

Malware Insights

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

The PDF document 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 distribution site. No scripts were extracted, and the document body was truncated, limiting further analysis of the delivery mechanism.

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=%D1%80%D0%B5%D0%B7%D1%83%D0%BB%D1%8C%D1%82%D0%B0%D1%82%D1%8B+%D0%B5%D0%B3%D1%8D+%D0%BF%D0%BE+%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B5+2015+%D0%BF%D1%80%D0%B8%D0%BC%D0%BE%D1%80%D1%81%D0%BA%D0%B8%D0%B9+%D0%BA%D1%80%D0%B0%D0%B9&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185571_drayver_dlya_lexand_st_5350.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184803_putevoditel_po_kruymu_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185690_inglizcha_o_zbekcha_lug_at.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002466d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2466D 3556 bytes
font_01_sfnt_off000253f0.bin
26b72d739a8ad7408e9aa9bd9674c3e3912eb9962f064d6caceb7daafa837e25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x253F0 14744 bytes
font_02_sfnt_off00028155.bin
d129b2306b70ce91da7e21aa5dc95ff0e57120c5b3b157257a57119c7bcd55f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28155 14640 bytes
font_03_sfnt_off0002ac8e.bin
562fd0d6cafcbd495986655f15c39b0b1b330a91a2de5fa4d8851c2b3c0400c6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC8E 7156 bytes
font_04_sfnt_off0002c17c.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C17C 6084 bytes
font_05_sfnt_off0002d111.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D111 3752 bytes

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