Malicious PDF — malware analysis report

Static analysis result for SHA-256 28867c3c361505fe…

MALICIOUS

PDF

353.9 KB Created: 2015-08-20 08:51:04 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: a12416413f0571a96fb145806e90182a SHA-1: f59188e015800841e371923621126c17c1859248 SHA-256: 28867c3c361505fe1269ececb060355d5d145294737a7d297d22c63d3a074f3b
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, botcraftman.ru. This indicates the document is designed to lure the user to a malicious site. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the presence of the malicious URL is sufficient evidence for the attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

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=Link2sd+plus+%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%80%D1%83%D1%81%D1%81%D0%BA%D1%83%D1%8E+%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D1%8E+%D0%BD%D0%B0+%D0%B0%D0%BD%D0%B4%D1%80%D0%BE%D0%B8%D0%B4&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639625_privlekatelnost_h4_smotret_onlayn_na_russkom.pdf
    • http://img0.liveinternet.ru/images/attach/c/6//4638/4638819_shahter_3_igor_hort.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4639/4639524_programma_dlya_kalibrovki_yekrana_dlya_android.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00053d90.bin
1fca256f1bf5e1b1d07da2aadd59d0d2bb66ab1a89880e54a3f97e45aafc67e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53D90 9624 bytes
font_01_sfnt_off000557fc.bin
fecf98c1b202485ee487c6b2708126d8a5ec2e894ce647b3b0fcd1d1042c4cbb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x557FC 15328 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.