Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0c48745323fabb2…

MALICIOUS

PDF

185.8 KB Created: 2015-07-23 20:53:34 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 19fb61799181cfcc9be6d262fcb2b3fe SHA-1: 1c07f643774d714b95d85b9de0842da2141614dc SHA-256: e0c48745323fabb2253819eb002ca430db0d69e4ad08ddc83619dfa5bc65e111
150 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 redirector link to botcraftman.ru. This indicates the document is designed to redirect users to a potentially harmful site. The ClamAV detection as Pdf.Dropper.Agent-7494971-0 further supports its malicious nature. No scripts were extracted, but the presence of the malicious URL is the primary indicator of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-7494971-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-7494971-0
  • 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%B8%D0%BC%D1%81+2+%D0%B8%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%8F+%D1%80%D0%BE%D0%B1%D0%B8%D0%BD%D0%B7%D0%BE%D0%BD%D0%BE%D0%B2+%D1%87%D0%B5%D1%80%D0%B5%D0%B7+%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//4184/4184586_skachat_diablo_2_russkaya_versiya_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184363_obuchayuschie_multfilmuy_dlya_detey_34_let_skachat_s_torrenta.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183252_proekt_doma_yelbrus.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024539.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24539 3556 bytes
font_01_sfnt_off000252bc.bin
8cf2dce01d8165f641bbfa80a7a425c92ffa109fa16dbae10ac5ae276f172cfa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x252BC 13904 bytes
font_02_sfnt_off00027ebe.bin
1bdb34460530df544f3708516b9bff2a8899c1e4c5605cca86f0484fc167616c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27EBE 14468 bytes
font_03_sfnt_off0002a970.bin
193933d02b3d5c40b7c4a1c3875aca057d3321002ec2245d94a251c4f0f216a1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A970 6952 bytes
font_04_sfnt_off0002bd94.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD94 6084 bytes
font_05_sfnt_off0002cd29.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CD29 3752 bytes

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