Malicious PDF — malware analysis report

Static analysis result for SHA-256 1fe124b11db0d872…

MALICIOUS

PDF

363.7 KB Created: 2015-08-24 08:44:10 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: 001a12455325a71607fec03ae02af520 SHA-1: bf33365bc1e64457a42cfb9df6e07122cc63f89f SHA-256: 1fe124b11db0d87246efd51c02fe24069b7690eae41fd16c203245c2bf5af29f
98 Risk Score

Malware Insights

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

The PDF file contains an embedded JavaScript stream and a link to known malicious redirector infrastructure. The ML classifier also flagged this PDF with high confidence. The primary malicious indicator is the URL http://botcraftman.ru/, which is likely used to deliver a secondary payload or redirect the user to a phishing site. No specific malware family was identified.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9954

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.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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%B1%D0%BE%D1%80%D0%BD%D0%B8%D0%BA+%D0%BD%D0%B0%D1%88%D0%B5+%D1%80%D0%B0%D0%B4%D0%B8%D0%BE+200+%D0%B7%D0%BE%D0%BB%D0%BE%D1%82%D1%8B%D1%85+%D1%85%D0%B8%D1%82%D0%BE%D0%B2+2013+mp3+%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&charset=utf-8
    • http://img1.liveinternet.ru/images/attach/c/6//4699/4699409_egye__po__russkomu_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4703/4703541_powder__toy__skachat_.pdf
    • http://img1.liveinternet.ru/images/attach/c/6//4705/4705801_konspektuy__urokov__azbuka_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00056478.bin
419cc30c4852addf416c41c6a3719aa2dd6f33644b6fc07f992d4f226825022f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x56478 10648 bytes
font_01_sfnt_off00058255.bin
454296bae8317a522b77fa4b678b3ff1aaeda38639dd6516425542d2ae4f2a1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x58255 14424 bytes

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