Malicious PDF — malware analysis report

Static analysis result for SHA-256 466a93c5419dbecd…

MALICIOUS

PDF

187.4 KB Created: 2015-07-24 04:38:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 2dfa4dbe2e2010d3d39876aa5385136c SHA-1: 97578e0d4a1c755d39d8782f844cd104e09c5740 SHA-256: 466a93c5419dbecd08e57ee27fd212611c9833a15441682b5a59d1fb9510019d
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 'http://botcraftman.ru/', which is identified as a malicious redirector. This suggests the document's primary purpose is to lure users to a harmful external site, likely for phishing or malware delivery. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific 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%9E%D0%B1%D1%80%D0%B0%D0%B7%D0%B5%D1%86+%D0%B7%D0%B0%D0%BF%D0%BE%D0%BB%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F+%D1%84%D0%BE%D1%80%D0%BC%D1%8B+%D0%BA%D0%BD%D0%B4+1152017+%D0%BD%D1%83%D0%BB%D0%B5%D0%B2%D0%BE%D0%B9+%D0%B1%D0%B0%D0%BB%D0%B0%D0%BD%D1%81&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4187/4187032_russkoispanskiy_razgovornik_s_transkripciey_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185411_skachat_besplatno_i_bez_registracii_antivirus_avast_na_1_god.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4186/4186728_maynkraft_1_5_2_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024603.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24603 3556 bytes
font_01_sfnt_off00025386.bin
6f1807a49958a2b9daf834ffe7e111ea8ce1fbf53d36b1878997c21f20dbf1d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25386 14796 bytes
font_02_sfnt_off00028162.bin
993778e9fa4eb2c5726fc938227ae1e304a999190b6b2b024b54cbf1c6d878bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28162 14688 bytes
font_03_sfnt_off0002acca.bin
582656c61d4f5a10b6ce527b26b2d76cbb3473c6a479d435df5ca3fe0b367790		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2ACCA 7760 bytes
font_04_sfnt_off0002c3d0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C3D0 6084 bytes
font_05_sfnt_off0002d365.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D365 3752 bytes

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