Malicious PDF — malware analysis report

Static analysis result for SHA-256 832efdfd4c62b71a…

MALICIOUS

PDF

184.3 KB Created: 2015-08-08 10:48:36 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d19369b4edd62dafa2a7348dec25e461 SHA-1: 844fc192d445e44728286e764757606b79218803 SHA-256: 832efdfd4c62b71a032bc6e729feae6ba960fd23bdbcb136eab56fe4638e5676
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to botcraftman.ru. This indicates the document is designed to lure the user to a malicious site, likely for further exploitation or malware delivery. The ML classifier also strongly flagged this PDF as malicious.

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-8788079-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8788079-0
  • 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%98%D0%BD%D1%81%D1%82%D1%80%D1%83%D0%BA%D1%86%D0%B8%D1%8F+%D0%BF%D1%80%D0%B8%D0%B1%D0%BE%D1%80+%D0%B1%D0%BB%D0%B8%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384204_obrazec_prikaza_o_sozdanii_kontraktnoy_sluzhbuy.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384390_sagemcom_fst_2804_v5_proshivka_skachat.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4386/4386263_otchet_pedagogapsihologa_za_god_v_dou.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023f7c.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23F7C 3556 bytes
font_01_sfnt_off00024cff.bin
55a23b55b0abd3c4dca2f276016c0afbd1993cad78ea77afcd65b89286eabd0f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24CFF 14808 bytes
font_02_sfnt_off00027b0c.bin
d22647a20bdf7fdf39209c54252ae5535b39cfb889418d78aaf9459f7adfd96a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27B0C 14468 bytes
font_03_sfnt_off0002a5c1.bin
8e47bddc237485c1340a41fdea1e90e7e369d25f3cfd1523f7a92935ce485da8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A5C1 6232 bytes
font_04_sfnt_off0002b746.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B746 6084 bytes
font_05_sfnt_off0002c6db.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6DB 3752 bytes

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