Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e5c3820a95793ce…

MALICIOUS

PDF

184.2 KB Created: 2015-08-08 09:58:15 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 858bb447d819195f8071fdc8f4840493 SHA-1: 54ae78a81fda47fa441f318c46b3866ba43f9518 SHA-256: 0e5c3820a95793ce6926149a0db1334be3bd818c3f8ec090d8bb590b058d9262
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by an ML classifier and contains a link to a known malicious redirector infrastructure. This suggests the document is designed to lure users to a malicious website, likely for phishing or malware delivery. No scripts were extracted, but the presence of a malicious URL is a strong 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%B2%D0%B0%D1%80%D0%BF%D0%B0%D0%BA+%D0%B4%D0%BB%D1%8F+wot+0811+%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/6//4384/4384712_mikser_domashnyaya_videostudiya_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384113_knigi_dlya_logopedov.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4235/4235328_skachat_sbornik_klassicheskoy_literaturuy.pdf
    • http://www.microsoft.com/typography/fonts/
    • http://www.microsoft.com/typography/fonts/You

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023e43.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x23E43 3556 bytes
font_01_sfnt_off00024bc6.bin
93c29df385326adc65f002f4ecf94e3c4560f8b27c033ebfa2eddc3ad4793a6d
pdf-font-stream PDF embedded font (sfnt) at offset 0x24BC6 14004 bytes
font_02_sfnt_off000277d5.bin
83c9f1bcec14af91b77a483eb503ad0c5224a59ed6553ff4901ace5e6aaa0ae9
pdf-font-stream PDF embedded font (sfnt) at offset 0x277D5 14864 bytes
font_03_sfnt_off0002a33e.bin
1bce3e3b7b93153c80e69e95fdda3d26520966a919ff454966d689229e2f1d68
pdf-font-stream PDF embedded font (sfnt) at offset 0x2A33E 6840 bytes
font_04_sfnt_off0002b70d.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2B70D 6084 bytes
font_05_sfnt_off0002c6a2.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C6A2 3752 bytes