Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f25a66c220ddbd9…

MALICIOUS

PDF

187.3 KB Created: 2015-07-24 00:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: b1defa1af109ac740fcebdfcdc877ec2 SHA-1: b6fbc561078a7da7acf30655cb333110bdd89795 SHA-256: 8f25a66c220ddbd9e995b8d9a542903a67a14d6f9e5ec264fb1e9632370fa47d
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector. The ML classifier also strongly indicated maliciousness. The embedded URL is the primary indicator of malicious activity, likely serving as a lure to a phishing or malware distribution site.

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=%D0%BF%D1%80%D0%BE%D0%BF%D0%B8%D1%81%D0%B8+%D0%B6%D1%83%D0%BA%D0%BE%D0%B2%D0%B0+%D0%B4%D0%BB%D1%8F+%D0%B4%D0%B5%D1%82%D0%B5%D0%B9+6+%D0%BB%D0%B5%D1%82+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185225_skachat_igru_gadkiy_ya_minion_rush_na_kompyuter.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184831_skachat_kartuy_dlya_navitel_belarus_2015_nm3.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185127_licenzionnuyy_klyuch_navitel_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000247fb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x247FB 3556 bytes
font_01_sfnt_off0002557e.bin
1cd4b1a3749c585a6b6c225c958a22efa5d3d4dc2733e7fd12445e7b63e19c75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2557E 14984 bytes
font_02_sfnt_off00028396.bin
1d2d67a4b58bd7e352f9ee5968e50007c52c45640d04a7a617e1953345687aa0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28396 14468 bytes
font_03_sfnt_off0002ae47.bin
f88f1de3c14528da3c19501ad8abc5ba5d7beff724c50fdf357fc5d34579d363		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AE47 7240 bytes
font_04_sfnt_off0002c34f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C34F 6084 bytes
font_05_sfnt_off0002d2e4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D2E4 3752 bytes

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