Malicious PDF — malware analysis report

Static analysis result for SHA-256 19d22a6e8bf082a6…

MALICIOUS

PDF

186.5 KB Created: 2015-07-23 21:27:41 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: be58f0ebe41ed5b563c6c4b2c41e2839 SHA-1: 0e5d82ae40ed12b12e68d8a1c2fae8eea6636807 SHA-256: 19d22a6e8bf082a685d0ce39adc0ff7787adce162653c078780034a7747525b0
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is the primary indicator of malicious intent.

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=%D0%AF%D0%BD%D1%87%D0%B5%D0%B2%D1%81%D0%BA%D0%B0%D1%8F+%D1%84%D0%B8%D0%B7%D0%B8%D0%BA%D0%B0+%D0%B2+%D1%82%D0%B0%D0%B1%D0%BB%D0%B8%D1%86%D0%B0%D1%85+%D0%B8+%D1%81%D1%85%D0%B5%D0%BC%D0%B0%D1%85+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184504_kak_snyat_dengi_s_fonbeta.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184521_skachat_minecraft_pe_0_8_1_na_android_igruy.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184698_skachat_diablo_3_torrent_na_russkom_yazuyke.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024536.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x24536 3556 bytes
font_01_sfnt_off000252b9.bin
b498928e4d331801aa56c73d81af167132c94fcf3adfaacbb80fa6bfd28ebc0d
pdf-font-stream PDF embedded font (sfnt) at offset 0x252B9 14596 bytes
font_02_sfnt_off00028036.bin
4d192578c0c4d786a68164175f10307fedf7eaf3f790627a997e8314682ff9c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x28036 14672 bytes
font_03_sfnt_off0002ab96.bin
2c781f923bd4f48d64eb0d091e2d736fdbb6c54b5df0af65efab810bdba49ea8
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB96 7076 bytes
font_04_sfnt_off0002c01d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C01D 6084 bytes
font_05_sfnt_off0002cfb2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFB2 3752 bytes