Malicious PDF — malware analysis report

Static analysis result for SHA-256 c04136fd436f7ff4…

MALICIOUS

PDF

187.6 KB Created: 2015-07-24 19:34:55 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: dfa098244d4ed747e893056dd1cb1e1b SHA-1: f0712623fa0d478c723a5483126ac1e9de95e3e0 SHA-256: c04136fd436f7ff46513d7d3b25c90103472056d1fb64918036339ad2a03fdeb
92 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the embedded URL is sufficient evidence of malicious intent.

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=%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D0%BC%D0%B0+%D1%8D%D0%B2%D0%B5%D1%80%D0%B5%D1%81%D1%82+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE+%D0%BD%D0%B0+%D1%80%D1%83%D1%81%D1%81%D0%BA%D0%BE%D0%BC+%D1%8F%D0%B7%D1%8B%D0%BA%D0%B5&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/5//4191/4191936_celemony_melodyne_33_skachat_besplatno.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4192/4192144_igra_simulyator_passazhirskogo_samoleta_skachat_torrent.pdf
    • http://img0.liveinternet.ru/images/attach/c/5//4194/4194181_ok_hack_odnoklassniki_skachat.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000248cc.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x248CC 3556 bytes
font_01_sfnt_off0002564f.bin
0eb3d6f119522a4a74570849e498c3ec2829c6c13a7f2ccb7d06f774c00c7346		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2564F 15268 bytes
font_02_sfnt_off00028503.bin
2faf238a7982558102f008fa2e03cbd823800727545a7f10afda32250c8cbf2a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x28503 14468 bytes
font_03_sfnt_off0002afb6.bin
09e3572c1437c7fd3177a0da870e34d9a228fcd1e9ec8ca83da5e0eacc5646a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFB6 7188 bytes
font_04_sfnt_off0002c4b0.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C4B0 6084 bytes
font_05_sfnt_off0002d445.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2D445 3752 bytes

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