Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6a179e86cf4f9f8…

MALICIOUS

PDF

185.2 KB Created: 2015-07-25 00:19:18 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9bdb35b8ba2a2e1ff56c0dcdf7c6c3c5 SHA-1: 8d31ecf0944ad8864c626539b522fd7ade78a67d SHA-256: e6a179e86cf4f9f86227ef786de47f5e9ef4727aa98d50bc38ccf6ff44e7e307
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 assigned a high probability of maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to a potentially harmful website.

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=%D1%88%D0%B0%D0%BD%D1%82%D0%B0%D1%80%D0%B0%D0%BC+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+fb2&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187454_krasivoe_oformlenie_listov_a4.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185116_launcher_ayfon_dlya_android.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184660_klyuch_aktivacii_dlya_windows_7_domashnyaya_rasshirennaya.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024013.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24013 3556 bytes
font_01_sfnt_off00024d96.bin
25ad4d80551a222d57005ebeb79ba40dd6e3ad50b7f5cf0dd68af0edde20e736		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D96 14740 bytes
font_02_sfnt_off00027bd6.bin
4b6dd0d937d6c2bb8b8f34f4eb6afccb31482006105d9f2206978321ac9401d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27BD6 14752 bytes
font_03_sfnt_off0002a770.bin
6db4c9aeabf16b1272434de38c5d67ca491e614db61b24b8c737472565159f58		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A770 6776 bytes
font_04_sfnt_off0002baf4.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BAF4 6084 bytes
font_05_sfnt_off0002ca89.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA89 3752 bytes

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