Malicious PDF — malware analysis report

Static analysis result for SHA-256 be2365972d2485e1…

MALICIOUS

PDF

186.8 KB Created: 2015-07-24 23:12:38 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 38a26d51e202bb321f653fb3b8ed8476 SHA-1: 9ca649a77c07e68b1ce5f5af1119f4e9ecfdf31b SHA-256: be2365972d2485e1e05f4c97d8f0fe7c2735589535a41dca80943c200c9b413e
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 strongly indicated maliciousness. The embedded URL points to 'botcraftman.ru', which is identified as a malicious redirector. No scripts were extracted, and the document body was truncated, limiting further analysis of the specific lure.

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D0%BD+10+%D0%B8%D0%BD%D0%BE%D0%BF%D0%BB%D0%B0%D0%BD%D0%B5%D1%82%D0%BD%D0%B0%D1%8F+%D1%81%D0%B2%D0%B5%D1%80%D1%85%D1%81%D0%B8%D0%BB%D0%B0+2+%D1%81%D0%B5%D0%B7%D0%BE%D0%BD+%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://img1.liveinternet.ru/images/attach/c/5//4187/4187788_adobe_flash_cs6_skachat_torrent_russkaya_versiya.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192216_dialux_evo_rukovodstvo_na_russkom.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4189/4189717_skachat_programmu_dlya_planirovki_uchastka_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002456d.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x2456D 3556 bytes
font_01_sfnt_off000252f0.bin
2da145fdb597779459cbbcbd7db20656dd9bc07d0c695ee3a6d16ddf5e8fad59
pdf-font-stream PDF embedded font (sfnt) at offset 0x252F0 15132 bytes
font_02_sfnt_off00028196.bin
6404eefaa7785aa4c8aee27f0f388f5a3333587e960ac78b319903fe8a642d76
pdf-font-stream PDF embedded font (sfnt) at offset 0x28196 14532 bytes
font_03_sfnt_off0002ac87.bin
19e40378cdbb6b48ee78d09d7000e17d915512a0097a58aaf8e24029b59927c8
pdf-font-stream PDF embedded font (sfnt) at offset 0x2AC87 7184 bytes
font_04_sfnt_off0002c18a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C18A 6084 bytes
font_05_sfnt_off0002d11f.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D11F 3752 bytes