Malicious PDF — malware analysis report

Static analysis result for SHA-256 85720bfd7d7bb949…

MALICIOUS

PDF

186.3 KB Created: 2015-08-08 09:39:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 239474fd638c09d5b48b108135b26335 SHA-1: 4a0a7ce50e8e55cb978c754115372a94a491c927 SHA-256: 85720bfd7d7bb949795c900bd3b570bb1c2f4f2e5e53e124bf986dd951265b73
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL points to botcraftman.ru, which is a known malicious redirector. This suggests the document is designed to lure users to a malicious site, likely for phishing or malware delivery.

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=resident+evil+4+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384098_rabochie_programmuy_po_fizike_11_klass_myakishev_2_chasa.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383787_triton_akvariumnuyy_soderzhanie.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383733_bushkov_chertova_melnica_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002aa24.bin
2523213cb25d28036c801d59ca1a87793c430114706c0b20b7519a89e823e6af		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2AA24 7204 bytes
font_00_sfnt_off000242f0.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x242F0 3556 bytes
font_01_sfnt_off00025073.bin
a6b076068b612bd2972cceb44a120077024932d5bb9203fcde751642d2b0b418		 pdf-font-stream PDF embedded font (sfnt) at offset 0x25073 14788 bytes
font_02_sfnt_off00027ed8.bin
a3e1eb9cc3252ca6f0c4b46b6fcce54576b299eed14cc911f2c02e50b6177ced		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27ED8 14628 bytes
font_04_sfnt_off0002bf3e.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BF3E 6084 bytes
font_05_sfnt_off0002ced3.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CED3 3752 bytes

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