Malicious PDF — malware analysis report

Static analysis result for SHA-256 b743c39e34909442…

MALICIOUS

PDF

185.3 KB Created: 2015-07-28 19:02:27 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: bd97aa33ef1a06b15d5c95b4f2a82f3c SHA-1: 9d58004b600cf54e08659aa818037e98acdefac6 SHA-256: b743c39e3490944290397a5f9096bb4918e521d2928db0ba286ff2518fedcdf1
90 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier also flagged this file with high confidence. The embedded URL is the primary indicator of malicious activity, likely leading to a malicious website or further payload download.

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=My+talking+tom+mod+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4228/4228597_promo_koduy_dlya_kontrakt_vars.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4210/4210679_skachat_igru_worms_3d_na_kompyuter_cherez_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4202/4202690_skachat_viber_na_telefon.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023fec.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x23FEC 3556 bytes
font_01_sfnt_off00024d6f.bin
aab0ebc3712e92b6ea12b7cc0a43578c18f71b0c31203b0a37a607307992b812
pdf-font-stream PDF embedded font (sfnt) at offset 0x24D6F 14588 bytes
font_02_sfnt_off00027a7a.bin
78d6a1cba061dc0596ddb33cc3075718d0823ca3d9f41a53cbe66f3ddfcd2d8e
pdf-font-stream PDF embedded font (sfnt) at offset 0x27A7A 14744 bytes
font_03_sfnt_off0002a606.bin
f48262c494a1d1c7f4c5c78364d12c911b4390e6840092f4b0c2019b78f603ae
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A606 7268 bytes
font_04_sfnt_off0002bb4f.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BB4F 6084 bytes
font_05_sfnt_off0002cae4.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CAE4 3752 bytes