Malicious PDF — malware analysis report

Static analysis result for SHA-256 365648cdc7819a5f…

MALICIOUS

PDF

184.2 KB Created: 2015-08-05 16:48:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: c885db0d902db6435ef73b1deddf287a SHA-1: 7753c83fccdb7c23ec0ac367751c619b08e3ce13 SHA-256: 365648cdc7819a5f2f453885289eb273f9e32b5d60e12712fe8ed48287d03d65
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 containing a link to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. No scripts were extracted, limiting the analysis of the file's specific payload 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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+face2face+intermediate&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304725_skachat_chituy_dlya_gta_samp_03d.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306044_avtobus_sanktpeterburg_pskov_raspisanie.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305211_programma_dlya_prosmotra_foto_na_iphone.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023cc9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23CC9 3556 bytes
font_01_sfnt_off00024a4c.bin
92636819ce31eb1c62a9f0ca9689e6ad86920e152fd76bbd1af131111da6e840		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24A4C 14608 bytes
font_02_sfnt_off000277b4.bin
544d20b109ac381a098666e02c46baf00bc014cf6d6ae5a17e0df1deb28bf099		 pdf-font-stream PDF embedded font (sfnt) at offset 0x277B4 14840 bytes
font_03_sfnt_off0002a38b.bin
089fc21b3ee817fa04e79eb435cfb429184428b0ecb28306c64c4d898f888a89		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A38B 6768 bytes
font_04_sfnt_off0002b6f4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B6F4 6084 bytes
font_05_sfnt_off0002c689.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C689 3752 bytes

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