Malicious PDF — malware analysis report

Static analysis result for SHA-256 4013e7e6094a2aae…

MALICIOUS

PDF

186.3 KB Created: 2015-07-23 21:27:50 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: ac94c7febc7203719be77af1df271d46 SHA-1: 5faa4b9132ad07c075a855671f06c0a2c51da627 SHA-256: 4013e7e6094a2aae8ebf6fd5020173941c731ac554d88d19a9fdc4d2dcf8685b
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 primary malicious IOC is the URL http://botcraftman.ru/, which is likely used to direct users to a harmful destination. 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=%D0%9D%D0%B0%D1%88%D0%B0+%D1%81%D0%B8%D0%BB%D0%B0+%D0%B7%D0%B0%D1%80%D1%8F%D0%B4%D0%BD%D0%BE%D0%B5+%D1%83%D1%81%D1%82%D1%80%D0%BE%D0%B9%D1%81%D1%82%D0%B2%D0%BE+%D0%BD%D1%81+101+%D0%B8%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184400_kallanetika_s_ekaterinoy_ruykovoy_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184414_skachat_sbornik_klipov_v_formate_avi_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184869_skachat_vord_dlya_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000245ce.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x245CE 3556 bytes
font_01_sfnt_off00025351.bin
acbe30753b67f7ef1c5aa41cecced82ff830fad09097aebf911eccade8e201fc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25351 14444 bytes
font_02_sfnt_off00028070.bin
1c9348df3052c299650a19d7e6198d3afdc884458d8f7a5bf6d63ec982147b73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28070 14520 bytes
font_03_sfnt_off0002ab44.bin
65c6afaf1611a46ae1d8c5694dcf9ae5f20670846d6163c6c13ea55b90ba0f37		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB44 6960 bytes
font_04_sfnt_off0002bf75.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF75 6084 bytes
font_05_sfnt_off0002cf0a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF0A 3752 bytes

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