Malicious PDF — malware analysis report

Static analysis result for SHA-256 01a43006b61c9520…

MALICIOUS

PDF

182.8 KB Created: 2015-08-05 17:46:03 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: f8e9e9423ce4ab32731ec4508d0d5b82 SHA-1: 9b5e8ee2675aa3b452bb1bf877fdc212fd677d83 SHA-256: 01a43006b61c952008990c12ad074427459ddd766ef5d46d6c3d5d5ae9227664
92 Risk Score

Malware Insights

The PDF was flagged by a malicious redirector link heuristic, pointing to botcraftman.ru. This URL is likely used to deliver a second-stage payload or phish for user credentials. The ML classifier also strongly indicated maliciousness.

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=d3dx9_42dll+++windows+7&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305087_knigi_po_itil.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305155_nasha_rasha_skachat_besplatno_7_sezon.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4305/4305263_simcity_5_skachat_torrent_rg_mehaniki.pdf
    • http://www.microsoft.com/typography/fonts/You
    • http://www.microsoft.com/typography/fonts/

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off00029f0a.bin
b64e13b9b3837d9969a7683f448d78572fdb1b03805d8311ccddd46d70633ed0
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29F0A 6392 bytes
font_00_sfnt_off00023860.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281
pdf-font-stream PDF embedded font (sfnt) at offset 0x23860 3556 bytes
font_01_sfnt_off000245e3.bin
7c4fc28063889ae694ba2b900eae34a9fca0432062892569893fcbe727eccd5c
pdf-font-stream PDF embedded font (sfnt) at offset 0x245E3 14428 bytes
font_02_sfnt_off0002731f.bin
f25247fc0c96df414e9ac43adadc67d153e730fba226f5c5915f6f3c1edceb0e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2731F 14816 bytes
font_04_sfnt_off0002b152.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3
pdf-font-stream PDF embedded font (sfnt) at offset 0x2B152 6084 bytes
font_05_sfnt_off0002c0e7.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0E7 3752 bytes