Malicious PDF — malware analysis report

Static analysis result for SHA-256 b55c79978ca4c30f…

MALICIOUS

PDF

186.4 KB Created: 2015-07-24 11:37:20 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 99b4c915662e063af67a6aa76a15e85d SHA-1: 5c3afc5b9c3a21b83a46cf4e67a43ff37670a601 SHA-256: b55c79978ca4c30fb85bfda7c188fe528e06d3435c8865728ad117cc510e5ad8
90 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics as malicious, including a critical alert for a link to known malicious redirector infrastructure. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure the user to a compromised site.

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=bcad+%D0%BC%D0%B5%D0%B1%D0%B5%D0%BB%D1%8C+pro+393+1100+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%B8%D0%B9+%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+%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://img1.liveinternet.ru/images/attach/c/5//4191/4191489_skachat_igru_overlord_2_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4190/4190167_detskoe_karaoke_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187421_zayavlenie_na_postanovku_na_uchet_transportnogo_sredstva.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002435d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2435D 3556 bytes
font_01_sfnt_off000250e0.bin
225693a1831a0a09373d38a1d4f663ab4a52a382518920bfc318f85284b6d5ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x250E0 14460 bytes
font_02_sfnt_off00027e25.bin
127b51452f5e98a0f694089817e648d0bf4ed0e681d779a64cd1e98998021cea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27E25 14468 bytes
font_03_sfnt_off0002a8d7.bin
b5626ba30f737643f7c45e611855a5fd27406af91b3e9387a4f7109f027210fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A8D7 7780 bytes
font_04_sfnt_off0002bfce.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BFCE 6084 bytes
font_05_sfnt_off0002cf63.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF63 3752 bytes

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