Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c04219883ea2e23…

MALICIOUS

PDF

186.0 KB Created: 2015-07-24 06:59:57 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 993507b6f72a155b22b0d8187504eac6 SHA-1: 5f814166279337505dc534b7e2c48ffeefbe8c65 SHA-256: 9c04219883ea2e236a3123663307661b21f827777237bc618c1ce8f8f7631827
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 embedded URL, http://botcraftman.ru/, is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a potentially harmful website. No scripts were extracted, and the document body was truncated, limiting further analysis of the delivery mechanism.

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=roadnumbers+%D1%88%D1%80%D0%B8%D1%84%D1%82+%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/5//4189/4189464_skachat_blocklauncher_pro_na_081_na_android.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185081_d3dx9_43dll_skachat_dlya_windows_7_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185477_skachat_drayvera_dlya_noutbuka_compaq_presario_cq_57.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a92b.bin
6483b34f8ce18fe6733fc06ee64f1a77aab5952919f4659cea3c76dada515cc6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A92B 7216 bytes
font_00_sfnt_off0002401c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2401C 3556 bytes
font_01_sfnt_off00024d9f.bin
53d7caed1fe262cb12bffb5ad9844bf2962e8769cfb59537cb8ecf7b479dfee3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D9F 15476 bytes
font_02_sfnt_off00027d82.bin
312308b83718dc327de1142d5142849fd309148793af1323cc56082eccdb4cd9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D82 14820 bytes
font_04_sfnt_off0002be2d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE2D 6084 bytes
font_05_sfnt_off0002cdc2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CDC2 3752 bytes

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