Malicious PDF — malware analysis report

Static analysis result for SHA-256 a475eddfb20a3964…

MALICIOUS

PDF

184.2 KB Created: 2015-08-08 10:35:53 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0c3659f5d0bc156278c91c0bafb81744 SHA-1: 59fdabec2d75aa1fad4c3a7d4cd076d4e89beb40 SHA-256: a475eddfb20a39644166b529fbb4b43359cf2861a9180e382109b73932f56bdb
150 Risk Score

Malware Insights

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

The PDF contains an embedded URL that is flagged as a malicious redirector. The ML classifier and ClamAV detection strongly indicate malicious intent, specifically a dropper. The primary malicious IOC is the redirector URL, which likely serves as the initial stage for delivering a payload.

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-8794719-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8794719-0
  • 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%A1%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BF%D0%BE%D1%80%D0%BD%D0%BE+%D0%BA%D0%BD%D0%B8%D0%B3%D1%83&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4226/4226849_microsoft_word_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384598_aymaks_ulyanovsk_raspisanie_seansov.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4229/4229595_oscar_mouse_script_editor_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f79.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F79 3556 bytes
font_01_sfnt_off00024cfc.bin
8c3b9cacd4182dc02c6f76527b20bfd0b046c43f98a6b5fe35ed3115d4ccb9f7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CFC 14952 bytes
font_02_sfnt_off00027b20.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B20 14468 bytes
font_03_sfnt_off0002a5d2.bin
be431f4e031c62442b3f2747c88453398153aca139469c758ad7dd19aa2139dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5D2 6152 bytes
font_04_sfnt_off0002b71f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B71F 6084 bytes
font_05_sfnt_off0002c6b4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6B4 3752 bytes

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