Malicious PDF — malware analysis report

Static analysis result for SHA-256 e714da8e28991991…

MALICIOUS

PDF

185.6 KB Created: 2015-08-05 17:15:11 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a9455e73f6bb21fd0b546cf6ca490725 SHA-1: 0358114f8cc4fab247c23a6d8e768a85b240b605 SHA-256: e714da8e28991991eb8e9f190df183a0af91c25d4f4d187a36d1af031f064f12
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 strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a harmful destination.

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%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%81%D0%B0%D0%B1%D0%B2%D0%B5%D0%B9+%D1%81%D0%B5%D1%80%D1%84+%D0%BD%D0%B0+%D1%82%D0%B5%D0%BB%D0%B5%D1%84%D0%BE%D0%BD+java&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4304/4304482_skachat_mod_mount_and_blade_the_last_days_32_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306178_skachat_programmu_nakrutka_okov_v_odnoklassnikah.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306426_delphi_7__windows_7.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f85.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F85 3556 bytes
font_01_sfnt_off00024d08.bin
e9ed3e184a0287af1c0eacf8df09f042a1fe54c97355d475b9139c9782f9f8f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24D08 15364 bytes
font_02_sfnt_off00027c9a.bin
cbe2e3b64501429849d0f8b00f9525732bf266a74e0a56dfdbc3e0519b76fd84		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C9A 14612 bytes
font_03_sfnt_off0002a7d6.bin
ecc77514bc1c08c869a635e241958700231310524845b8228181f2fb802c6fed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7D6 7096 bytes
font_04_sfnt_off0002bc75.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BC75 6084 bytes
font_05_sfnt_off0002cc0a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CC0A 3752 bytes

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