Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fb0a82c00baf25e…

MALICIOUS

PDF

185.1 KB Created: 2015-07-24 13:18:06 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 21123be3ec8b746a30fe2aa92654f907 SHA-1: 627d7ac4acb7fe269c7bc0634f981990f613a2b9 SHA-256: 8fb0a82c00baf25e6a6b8792914ea79a6dfa45892ac9ebe7e2de2904373f4fd3
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, botcraftman.ru. This indicates an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. 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=windows+7+x64+%D1%87%D0%B8%D1%81%D1%82%D0%B0%D1%8F+%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/5//4186/4186322_kartinuy_po_nomeram_skachat_shemuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192304_skachat_kryak_dlya_portal_2.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184508_diablo_iii_reaper_of_souls_skachat_torrent.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a5c1.bin
cedefae9cfbfed493071feb79d7fdefcbc96e45722148005b8addcd4a0630615		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A5C1 7192 bytes
font_00_sfnt_off00023e62.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23E62 3556 bytes
font_01_sfnt_off00024be5.bin
4109cb4bf49e723706ce9400f3050b412f90d8a6b28d64d4a060d05630b8ad2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24BE5 15068 bytes
font_02_sfnt_off00027a5d.bin
e99869f27161781c0a02cb0f23a8647a2d76ccc4be134b1bc11ad7340a731d83		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27A5D 14648 bytes
font_04_sfnt_off0002babd.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BABD 6084 bytes
font_05_sfnt_off0002ca52.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CA52 3752 bytes

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