Malicious PDF — malware analysis report

Static analysis result for SHA-256 208b8118b4dbb3ce…

MALICIOUS

PDF

362.0 KB Created: 2015-08-26 22:05:45 +03:00 Authoring application: wkhtmltopdf 0.12.2.4 (via Qt 4.8.6)
MD5: b46b61fc27b37ae241fd5429ff4431be SHA-1: 1f63ad1d6cab72d51a73aca7a470a2c7fce9fbf3 SHA-256: 208b8118b4dbb3cea610a58bc5049f7efb26311fd40262d1418be16b85318201
150 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics, including ClamAV and a machine learning classifier, as malicious. A critical heuristic identified a link to a known malicious redirector at http://botcraftman.ru/. This indicates the document's primary purpose is to redirect the user to a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9978

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.
  • ClamAV: Pdf.Dropper.Agent-8112778-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Dropper.Agent-8112778-0
  • 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%BA%D1%80%D0%B0%D1%81%D0%B8%D0%B2%D1%8B%D0%B5+%D0%BC%D0%B8%D0%BD%D1%83%D1%81%D0%BE%D0%B2%D0%BA%D0%B8+%D1%81%D0%BB%D1%83%D1%88%D0%B0%D1%82%D1%8C+%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/7//4765/4765069_2048__skachat__na_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4763/4763413_instrukciya__po__primeneniyu_.pdf
    • http://img1.liveinternet.ru/images/attach/c/7//4765/4765973_avast__pro__antivirus_.pdf

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00055b93.bin
78ab8a0ad68c2ab5a7f29bd0689c8a2791108d29dbaeb6a9ec71b6c7598198f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55B93 10148 bytes
font_01_sfnt_off0005772c.bin
848682c194de9f47adc7e650c8776516aacb6379d9b3a74242a387e036d991a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5772C 16328 bytes

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