Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae618376f132f50a…

MALICIOUS

PDF

182.7 KB Created: 2015-08-06 12:02:08 +03:00 Authoring application: wkhtmltopdf 0.12.2.1 (via Qt 4.8.6)
MD5: d0b9bf733c516a46f36ca1f5201666dc SHA-1: e2ad37dbd906e476efb7c5193c5a4f4f7e3f3d65 SHA-256: ae618376f132f50a267228f48335fe53a995db01e48aa3cf22f1ba6e2d43b431
90 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating an attempt to lure the user to a harmful site. The ML classifier also flagged this PDF with high confidence. 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%9C%D0%B8%D1%81%D1%81+%D1%8E%D0%BD%D1%8B%D1%85+%D0%BD%D1%83%D0%B4%D0%B8%D1%81%D1%82%D0%BE%D0%BA&charset=utf-8
    • http://fastpic.ru/
    • http://www.liveinternet.ru/click
    • http://img1.liveinternet.ru/images/attach/c/6//4307/4307793_zhurnal_hozyaystvennuyh_operaciy_primer.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4309/4309387_tekst_pesni_zhanna_friske_lalala.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4306/4306272_personalization_panel_1200_skachat_besplatno.pdf

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002395a.bin
880e53e6f12106514012eaabb19a261b9f8ae03d695445fc59a5b9b5a1293281		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2395A 3556 bytes
font_01_sfnt_off000246dd.bin
5f0f931074476ebb14d24bec437be27280d4587845421291b50ee43eceb8e51a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x246DD 15040 bytes
font_02_sfnt_off00027510.bin
923d73b03f8272a167df43f9281d599f83cd718efb488401ac000f5e305e1972		 pdf-font-stream PDF embedded font (sfnt) at offset 0x27510 14532 bytes
font_03_sfnt_off0002a000.bin
c250634a23f4395f946d1b0db27fa7a2af226b8e1ff4c169524ea13805aacdca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2A000 6112 bytes
font_04_sfnt_off0002b11a.bin
819f9cc5156bfe3dae03045446d677a19b5879270357875344f9514601da73e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2B11A 6084 bytes
font_05_sfnt_off0002c0af.bin
9364d8c42993f0db1eb41a63b15a48dd56cef5056a611ab8e91dd81183a5a95e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0AF 3752 bytes

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