Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7b5758407268ffb…

MALICIOUS

PDF

184.0 KB Created: 2015-08-05 22:15:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 26a9739e9dcae3c96f711714a01cdf5c SHA-1: f97621e8a104df6971e8c0e08208ea79a1421f42 SHA-256: e7b5758407268ffb8d99d57346185c2f7a02b099b4188fe0783ac9a4fa5b2a27
92 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 URL, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. No scripts were extracted, and the document body was not sufficiently readable to determine a specific lure, but the presence of the malicious URL is the primary indicator of compromise.

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=ra2+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305334_nalogovuyy_kodeks_rk_2013_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305021_video_kastracii_muzhchinuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4308/4308086_skachat_media_get_besplatno_dlya_vindovs_8.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f20.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F20 3556 bytes
font_01_sfnt_off00024ca3.bin
62c01e641066820c33ae24596a5a431cf147dd6fb47da3d2e53560fe0d0fd6ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CA3 14416 bytes
font_02_sfnt_off0002796a.bin
84b9e92ba6d4e9220f07f5c0d067bc57f8f0980f4521eda26892de3e70bffff2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2796A 14468 bytes
font_03_sfnt_off0002a420.bin
1ae0a4cd2f1a4fc26d1af73ccc9f5a40f93872c640d2b9ce29fd248eba6d9570		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A420 6408 bytes
font_04_sfnt_off0002b651.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B651 6084 bytes
font_05_sfnt_off0002c5e6.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C5E6 3752 bytes

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