Malicious PDF — malware analysis report

Static analysis result for SHA-256 d0ade358f9197ae9…

MALICIOUS

PDF

184.4 KB Created: 2015-07-24 11:50:02 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: a368978911a1858fcc0ddf4c7895146c SHA-1: 3f8a64be0dcc58688aacb4764f2d931d9fa0db7b SHA-256: d0ade358f9197ae933e33ed17dd453e414569d9f138bb425ade15b47490b735b
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 malicious intent, likely serving as a lure to a phishing or malware download page. 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=petz+5+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%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//4189/4189943_skachat_igru_gta_3_cherez_torrent.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4185/4185705_kak_chiterit_v_maynkraft_pe.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184706_skachat_durak_na_razdevanie_na_android.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00023d92.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x23D92 3556 bytes
font_01_sfnt_off00024b15.bin
8fcc2e5f102e54b36946e7bee06a661d19249c5d313d52e43a9a9ba2222f0542		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24B15 14868 bytes
font_02_sfnt_off00027968.bin
db212fa82d6326333482f6668bdb982789f7754e285dd20521b2959f540cef30		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27968 14948 bytes
font_03_sfnt_off0002a543.bin
3c07e2e7ca1dabcf7367cf1fb9a865b8e74f240ec4bd717eadd678135f7b70d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A543 6480 bytes
font_04_sfnt_off0002b7bf.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B7BF 6084 bytes
font_05_sfnt_off0002c754.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C754 3752 bytes

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