Malicious PDF — malware analysis report

Static analysis result for SHA-256 5577e0a7959e1005…

MALICIOUS

PDF

186.5 KB Created: 2015-07-25 00:31:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fa36fa90872f4ea61dc0a23a2d521cf3 SHA-1: a4038fbfce6217da4c8c6458a8b77124be756a3f SHA-256: 5577e0a7959e10052b408604f677fd706e60b811d79a201cd1c78685874d2c10
90 Risk Score

Malware Insights

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

The PDF contains an embedded URL that is flagged as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body is heavily truncated and does not provide further context on the lure, but the presence of a malicious redirector strongly suggests a phishing or malware delivery attempt.

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%B8%D0%B3%D1%80%D1%8B%D0%B2%D0%B0%D1%82%D0%B5%D0%BB%D1%8C+%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE+html5+%D0%BE%D1%82+youtube+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192873_formula_legkogo_priucheniya_k_gorshku_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194423_geroi_mecha_i_magii_3_wog_358_kartuy_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191952_elmconfig_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024209.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24209 3556 bytes
font_01_sfnt_off00024f8c.bin
1c161928303a69540349ba34cab3da205a954c27b55d05dad4d387048062ebf7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F8C 14728 bytes
font_02_sfnt_off00027dae.bin
7a22232570ea504e11e078e4ba53162bed7a5aab5b4da0f2cae65fdb8b6601cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27DAE 15152 bytes
font_03_sfnt_off0002aa34.bin
e4549732b6d8e67600274410ca75b92071c4eb71f518927b7652eb9988389112		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AA34 7408 bytes
font_04_sfnt_off0002c011.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C011 6084 bytes
font_05_sfnt_off0002cfa6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFA6 3752 bytes

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