Malicious PDF — malware analysis report

Static analysis result for SHA-256 cab9e5efea4d9472…

MALICIOUS

PDF

185.5 KB Created: 2015-07-26 00:38:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2f07eb7644fa98826d347b69bd14b0bd SHA-1: c3b1c0237006ce7745ec9602f6339cdb5843395b SHA-256: cab9e5efea4d94727ff438842408941108a5c3caeb16cf3e28b3412393d0743f
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also strongly indicated maliciousness. The embedded URL points to botcraftman.ru, which is identified as a malicious redirector. No scripts were extracted, but the presence of the malicious link 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%B8%D1%81%D0%BA%D1%80%D0%B5%D0%BD%D0%BD%D0%B8%D0%B9+%D1%81%D0%B5%D1%80%D0%B2%D0%B8%D1%81+%D0%BC%D0%B0%D0%BA%D1%81%D0%B8%D0%BC+%D0%BD%D0%B5%D0%B4%D1%8F%D0%BA%D0%B8%D0%BD+%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//4196/4196501_new_english_file_intermediate_skachat.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191193_skachat_igo_primo_2015_dlya_android_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4205/4205243_valusoft_mastercook_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000243b3.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x243B3 3556 bytes
font_01_sfnt_off00025136.bin
9df7dc50515b79dabaf14ede4763075eb667b663d90ab4eb5da3a617ba109915		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25136 14676 bytes
font_02_sfnt_off00027ef4.bin
2f174bce2bf89b86ed20b23e335462fb6c665daf7d579c7771c32fa68bc7e60f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EF4 14468 bytes
font_03_sfnt_off0002a9a6.bin
809c46e950f319ad7966d97c7fd663c1d8ef2fefc3fcfd5050026bd28620f47b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A9A6 6544 bytes
font_04_sfnt_off0002bc39.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC39 6084 bytes
font_05_sfnt_off0002cbce.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CBCE 3752 bytes

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