Malicious PDF — malware analysis report

Static analysis result for SHA-256 21f799145368dd62…

MALICIOUS

PDF

185.4 KB Created: 2015-07-25 02:54:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f462376e3e382ec8e0bc331edf79fd61 SHA-1: 2b7cbe0c07d657474596f2e0bb3ffd7ccabdbe2d SHA-256: 21f799145368dd6295a5330e1e9260c09eaa214c6ad84c6e643a03eeb848b890
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including a critical alert for a malicious redirector link. The embedded URL points to 'botcraftman.ru', which is identified as a known malicious redirector. This suggests the document is designed to lure users to a malicious site, likely for further exploitation or malware delivery.

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-9144087-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-9144087-0
  • 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=kreed+%D0%B4%D0%B8%D1%81%D0%BA%D0%BE%D0%B3%D1%80%D0%B0%D1%84%D0%B8%D1%8F+%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&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192847_shema_yelektroprovodki_bmv_e34.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191954_skachat_igru_zombi_ferma_na_kompyuter_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183202_kursovoy_proekt_po_ventilyacii.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002424d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x2424D 3556 bytes
font_01_sfnt_off00024fd0.bin
4a720427e36e184e19765e3d76437f51ebc4049348cf5c7b8dc6977c5aeaf60b
pdf-font-stream PDF embedded font (sfnt) at offset 0x24FD0 14304 bytes
font_02_sfnt_off00027d09.bin
971fdea35c70b92bd9da1aec88e0a33c7a1a2d65534e1ab982aa777fd0979b75
pdf-font-stream PDF embedded font (sfnt) at offset 0x27D09 14528 bytes
font_03_sfnt_off0002a7ea.bin
f56c93a9a99641f9937fbe5c028269d195c1fb5c58510d180c38c5e6dfc388a9
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A7EA 6872 bytes
font_04_sfnt_off0002bbc5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BBC5 6084 bytes
font_05_sfnt_off0002cb5a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CB5A 3752 bytes