Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b40937afeb1def7…

MALICIOUS

PDF

187.6 KB Created: 2015-07-25 00:30:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 9f86f3c2145c1128bd92113f76d1585f SHA-1: c073abc925d53fdd829e0bcb41ea6ac862faa85c SHA-256: 0b40937afeb1def788ed3edf3264d9d9f579f1fdc12fa22eb8707aeb95c2f7c1
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a malicious redirector link to botcraftman.ru, which is flagged by heuristics and ClamAV as a dropper. The ML classifier also strongly indicates maliciousness. While no scripts were explicitly extracted, the PDF structure and malicious URL suggest it's designed to lure users to a compromised site, likely for further exploitation or phishing.

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-8785596-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8785596-0
  • 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=%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%B0%D1%86%D0%B8%D1%8F+windows+81+%D0%BF%D1%80%D0%BE%D1%84%D0%B5%D1%81%D1%81%D0%B8%D0%BE%D0%BD%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%8F+build+9600+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192169_standartnuye_igruy_dlya_windows_7_skachat_besplatno.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195420_tablica_prilivov_i_otlivov_v_arhangelske.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194829_blank_dogovora_kupliprodazhi_avtomobilya_2013_skachat.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002ac63.bin
b20f02586d9069c6c5738dc037363cd3779a14f09f4c7c8acadbb6ff54a85f5d		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AC63 8128 bytes
font_00_sfnt_off000246cb.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246CB 3556 bytes
font_01_sfnt_off0002544e.bin
499e8f257122b841873c54235ee5155fa4bbf7e9a0a3e53038462f0204ac2613		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2544E 14308 bytes
font_02_sfnt_off00028114.bin
558e09b0b84b87113d38f3e70ea31ea5c9b8dfe06767c7936777ee8bca308307		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28114 14672 bytes
font_04_sfnt_off0002c4a9.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4A9 6084 bytes
font_05_sfnt_off0002d43e.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D43E 3752 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.