Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb6743e462e25d5f…

MALICIOUS

PDF

185.8 KB Created: 2015-07-24 03:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a278431e88709a29c56480f89e800710 SHA-1: 9c0751671d1a4316e2e25cf3918d122593a9b969 SHA-256: eb6743e462e25d5f8f59f9c755a03b51b8dbea8f5ded9323307bdb048ed6deae
90 Risk Score

Malware Insights

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

The PDF file was flagged by a critical heuristic for linking to known malicious redirector infrastructure. The ML classifier also assigned a high probability of maliciousness. The embedded URL `http://botcraftman.ru/...` is the primary indicator of compromise, suggesting the document is designed to lure users to a potentially harmful website. No scripts were extracted from this sample.

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%BF%D0%B8%D1%81%D1%8C%D0%BC%D0%BE+%D0%BF%D1%80%D0%B5%D0%B4%D0%BB%D0%BE%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5+%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D1%80%D1%8B&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185939_igra_prestolov_4_sezon_skachat_torrent_v_hd_1080.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184537_bitva_yekstrasensov_3_sezon_skachat_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185580_nastroyka_modema_tenda_w150d_dlya_megalayn.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000245ea.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x245EA 3556 bytes
font_01_sfnt_off0002536d.bin
0e08560615a078743b0f4f8a61954ea716612d3b4839e193a935fd9238582627
pdf-font-stream PDF embedded font (sfnt) at offset 0x2536D 14688 bytes
font_02_sfnt_off000280ad.bin
b79d56b22a3d37edc4793e81e28af2d51416733c1decb699be69ae0b1e9dff38
pdf-font-stream PDF embedded font (sfnt) at offset 0x280AD 14468 bytes
font_03_sfnt_off0002ab5c.bin
149d8fae3e9195bd0b41c4c9799dc30281fa084a027765293dc8535268e6ee82
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AB5C 6384 bytes
font_04_sfnt_off0002bd63.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2BD63 6084 bytes
font_05_sfnt_off0002ccf8.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2CCF8 3752 bytes