Malicious PDF — malware analysis report

Static analysis result for SHA-256 28410e192375b4d6…

MALICIOUS

PDF

185.7 KB Created: 2015-08-06 09:00:39 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 34744715e10bb25273605d6e9ddffc02 SHA-1: 14919c099851d8b1d0c49ba95ee67a206b4ddead SHA-256: 28410e192375b4d64b31b9db57b409089d9c0e23d9f43e2e523ecc755d7d426f
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by a machine learning classifier and contains a critical heuristic indicating a link to a known malicious redirector. The embedded URL, http://botcraftman.ru/, is likely used to direct users to a malicious website for phishing or malware distribution. No scripts were extracted, and the document body was not parsable.

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=live+for+speed+s2+drift+edition+2010+%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://img0.liveinternet.ru/images/attach/c/6//4306/4306437_farkray_3_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307745_skachat_programmu_risovaniya.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4308/4308712_ai_suite_3_.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a7ac.bin
d3703990da18fd2221e1ba384cbeed475e209237bb5c9570552907ae9816cda3		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A7AC 7308 bytes
font_00_sfnt_off00023fb0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23FB0 3556 bytes
font_01_sfnt_off00024d33.bin
58a2cb6747fdb364d58952e009e3bf517c4eb67aa74ba368c0993fab81e17098		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D33 15000 bytes
font_02_sfnt_off00027c10.bin
332660faa7568a134d85bab09ae20344cd5f70c103e313ced8a109af90db0b00		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C10 14724 bytes
font_04_sfnt_off0002bd16.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD16 6084 bytes
font_05_sfnt_off0002ccab.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCAB 3752 bytes

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