Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2ce98bb1f6848f2…

MALICIOUS

PDF

363.4 KB Created: 2015-08-28 11:49:40 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: bd16acba6867b44cf6e571b911afcd1c SHA-1: 007594af0156bba5e206a314520ab32d5bb870f5 SHA-256: b2ce98bb1f6848f260a59821e89e22b3cb186f47cba96998a00cf6834ff87621
90 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and contains a link to a known malicious redirector. The embedded URL, http://botcraftman.ru/, is highly suspicious and likely serves as a gateway to a phishing or malware distribution site. The document body is heavily obfuscated and does not provide further clues about the intended lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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=%D1%81%D0%BA%D0%B0%D1%87%D0%B0%D1%82%D1%8C+%D1%84%D0%B8%D0%BB%D1%8C%D0%BC+%D0%BF%D0%BE%D1%85%D0%BE%D1%80%D0%BE%D0%BD%D0%B8%D1%82%D0%B5+%D0%BC%D0%B5%D0%BD%D1%8F+%D0%B7%D0%B0+%D0%BF%D0%BB%D0%B8%D0%BD%D1%82%D1%83%D1%81%D0%BE%D0%BC+%D0%B1%D0%B5%D1%81%D0%BF%D0%BB%D0%B0%D1%82%D0%BD%D0%BE&charset=utf-8
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802545_kak__ustanovit__moduy_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802523_s__gruzom__po_.pdf
    • http://img0.liveinternet.ru/images/attach/c/7//4802/4802734_skachat__knigu__dumay_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000569ae.bin
a93bdbbc8239fa8da35de9bd4a35784ee8f56538206c30e01c64b533dc1afeb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x569AE 9596 bytes
font_01_sfnt_off000584d3.bin
3da0557f077043cb50df023429a3b9ca3c0e3a229ddf082459ff54c48e3f2452		 pdf-font-stream PDF embedded font (sfnt) at offset 0x584D3 12840 bytes

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