Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d3d0d014c21bd87…

MALICIOUS

PDF

186.9 KB Created: 2015-07-23 20:15:35 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: fc408f5a987add3940d32791ed680705 SHA-1: a8910d1d03232f04be902bbc1ab3c0ac0a27a5ab SHA-256: 3d3d0d014c21bd87c5056780fa773f9e635daf5537d41d34566b02110a1c709f
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a malicious redirector link to botcraftman.ru, which is flagged by heuristics. The ML classifier also strongly indicates maliciousness. This suggests the document is designed to lure the user to a compromised site, likely for a drive-by download or further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9982

Heuristics 3

  • 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.
  • ClamAV: Pdf.Dropper.Agent-8786519-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8786519-0
  • 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=windows+xp+sp3+zver+2014+%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+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+64+bit+iso&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183193_lambreken_svoimi_rukami_shema_vuykroyki.pdf
    • http://img1.liveinternet.ru/images/attach/c/5//4183/4183246_model_idef0_primer.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4184/4184327_kupit_licenzionnuyy_maynkraft_za_10_rubley.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_048_off0002a99f.bin
257f27a5c62889104bda16bd048a7abe1c0d1964778b68655ffb9449b9b3b024		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2A99F 8128 bytes
font_00_sfnt_off000241f9.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x241F9 3556 bytes
font_01_sfnt_off00024f7c.bin
aa3ebf8e76b6d5b0407c1aa2ae04ec3699b6a7dd8107c4c981425c4113938599		 pdf-font-stream PDF embedded font (sfnt) at offset 0x24F7C 14604 bytes
font_02_sfnt_off00027d52.bin
6c1047168c67638d55b858289fa0e7b48e501aa7814428377a529c04e975a639		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27D52 14952 bytes
font_04_sfnt_off0002c1e5.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C1E5 6084 bytes
font_05_sfnt_off0002d17a.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D17A 3752 bytes

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