Malicious PDF — malware analysis report

Static analysis result for SHA-256 b583a70bf30bd381…

MALICIOUS

PDF

184.9 KB Created: 2015-08-08 09:35:21 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: affb2419709235f65c07be30f4fbfa6e SHA-1: 075c0fb2d909bc18e06d16969ffbdaa5b1063734 SHA-256: b583a70bf30bd381462da0b92fe15d6d753bc2c092981bb2225668c0dd9a9bd9
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 points to botcraftman.ru, which is identified as a malicious redirector. This suggests the document's primary purpose is to redirect users to a harmful destination.

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%B0%D0%BD%D0%B0%D0%B3%D0%BB%D0%B8%D1%84%D0%BD%D1%8B%D0%B5+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC%D1%8B+%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/6//4383/4383942_skachat_besplatno_igru_russkaya_ruybalka_na_telefon_nokia.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4383/4383957_vuykroyki_burda_dekabr_2012_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4384/4384019_obrazec_dogovora_podryada_s_yuridicheskim_licom.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024186.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24186 3556 bytes
font_01_sfnt_off00024f09.bin
93f4d8da476357603d285ba92c751bbffac3c1152cc8364a7ba5dfb2a561214a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F09 14304 bytes
font_02_sfnt_off00027c0a.bin
c33e6903d76079777c1b082a355654bfa5653b97afd40bc3e5344b34556d24bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27C0A 14468 bytes
font_03_sfnt_off0002a6bc.bin
588e946f4e620df0fd8a797e0ec09956fddf8ab10d44bb246377af06bb1aaa8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A6BC 6612 bytes
font_04_sfnt_off0002b9af.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B9AF 6084 bytes
font_05_sfnt_off0002c944.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C944 3752 bytes

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