Malicious PDF — malware analysis report

Static analysis result for SHA-256 ffd54558bd4145ea…

MALICIOUS

PDF

184.9 KB Created: 2015-08-09 07:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f38d3a71966fa2a878027ca983bd4f2c SHA-1: 4ea93b34e1ad7c27edd247c46e94805214dd5f30 SHA-256: ffd54558bd4145eac200f5138c8d28ba3b5d1233064d3251991047ef2090006f
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 flagged this PDF with high confidence. The primary attack vector appears to be luring the user to click on the malicious link, which is likely intended to lead to further 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=world+of+warcraft+wrath+of+the+lich+king+%D1%87%D0%B8%D1%82%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4390/4390770_skachat_simulyator_vozhdeniya_avtomobilya_2012_torrent_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4387/4387732_skachat_igru_crazy_taxi_na_kompyuter.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4399/4399338_blank_rezyume_obrazec.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023d70.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23D70 3556 bytes
font_01_sfnt_off00024af3.bin
debf3da48736050ef0aa60b432b9574417f80cfb265421cdf30e5f80c3ce4313		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24AF3 15224 bytes
font_02_sfnt_off000279db.bin
3d3df46fbad12a296d9e10421c66ef99d8866ab13aa316dca1ab7fc2fe749db9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x279DB 14848 bytes
font_03_sfnt_off0002a5a0.bin
94a94c75f3672006669c007595b64252d4c7aaa217415b6b2ffdfce396927301		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5A0 6924 bytes
font_04_sfnt_off0002b9af.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B9AF 6084 bytes
font_05_sfnt_off0002c944.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C944 3752 bytes

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