Malicious PDF — malware analysis report

Static analysis result for SHA-256 1de5d37ac905cbfe…

MALICIOUS

PDF

186.1 KB Created: 2015-07-27 19:18:16 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: 0fbdd8f1a3b6e57dc969ef417e244709 SHA-1: b1bac35d97d766a9cac3954d5c0255f9adc7692c SHA-256: 1de5d37ac905cbfe71e61e5d9efcc4f43b06b12dc8f32b26e6ce1888c943b0c5
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 containing a link to a known malicious redirector. 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 distribution site. 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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+fps+creator+x10+%D1%82%D0%BE%D1%80%D1%80%D0%B5%D0%BD%D1%82+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4195/4195907_skachat_muzuyku_besplatno_korol_i_shut.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4210/4210617_razdacha_licenziy_maynkraft.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192658_dead_space_2_skachat_torrent_russkaya_ozvuchka_pc.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a89c.bin
9fe3e4d050f9130ab8095f7312f1abaf8a8df3c98efdc767062d2b834eb5fec9		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A89C 7440 bytes
font_00_sfnt_off00024161.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24161 3556 bytes
font_01_sfnt_off00024ee4.bin
862748776fe58746afbb08e98c20046bf1207c5ca4316642bc8387ccc4b70cbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24EE4 14900 bytes
font_02_sfnt_off00027cf8.bin
fb41dd5c5dc71abe1fddff7db3bf0aba0939ee671d403a47d89c33a2742c06ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27CF8 14740 bytes
font_04_sfnt_off0002be84.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2BE84 6084 bytes
font_05_sfnt_off0002ce19.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CE19 3752 bytes

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