Malicious PDF — malware analysis report

Static analysis result for SHA-256 5689008cb5188c3b…

MALICIOUS

PDF

181.9 KB Created: 2015-08-05 15:42:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: cf74b7e6a7fefde4ffcbb2ff94a3b060 SHA-1: f478559dad7c578450e6feb5c57c7e1de67ff57b SHA-256: 5689008cb5188c3bef182d6e3c1c4cd1faa9e959c7505f71ff1792b67e9aa6e3
90 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link to botcraftman.ru. This suggests the document is designed to lure users to a potentially harmful website. No scripts were extracted, and the document body was truncated, limiting further analysis of the exact lure.

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=conky+%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://img1.liveinternet.ru/images/attach/c/6//4305/4305664_skachat_navitel_dlya_navigatora.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305952_skachat_mozilla_firefox.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305199_adresa_serverov_maynkraft_147.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023701.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23701 3556 bytes
font_01_sfnt_off00024484.bin
cff38312116204a613d6a69de50325e6b7932977ecffefc2eed6d24334f2bf70		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24484 14680 bytes
font_02_sfnt_off000271dc.bin
278eb8a6e979edb297c4c124f866bedfb6bf7771e1c8bf6c6880919b65ef7312		 pdf-font-stream PDF embedded font (sfnt) at offset 0x271DC 14680 bytes
font_03_sfnt_off00029c9e.bin
680631d76f78c126ef2021eabac65b79cdd34fa2648d35cf2d0fd1232f394fba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x29C9E 6104 bytes
font_04_sfnt_off0002adbe.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADBE 6084 bytes
font_05_sfnt_off0002bd53.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD53 3752 bytes

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