Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 fe809aa7410d9df4…

MALICIOUS

Office (OLE)

325.0 KB Created: 2020-07-06 20:42:25 Authoring application: Microsoft Excel
MD5: cbcdfdc49f75eefb79bb4f5958e45cf5 SHA-1: bbec1cf7c2692dc4cadb871919d951d9b097ce69 SHA-256: fe809aa7410d9df4db47ea209891c441028836edadd44beb0997d9d25be354d3
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Service Execution: Visual Basic T1204.002 Malicious Link: Malicious File

The sample is an Excel 4.0 (XLM) macro-enabled document. The presence of an Auto_Open macro with dangerous formula APIs indicates an attempt to execute code. The document body and embedded URLs suggest a lure related to a cryptocurrency project, likely for a phishing or scam campaign. The macro likely attempts to download or redirect the user to the provided URLs.

Heuristics 3

  • XLM Auto_Open with dangerous formula APIs high OLE_XLM_DANGEROUS_FN
    Excel 4.0 macro sheet contains an Auto_Open / Auto_Close entry and dangerous XLM formula APIs that can invoke programs, write files, or transfer control without VBA.
  • Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN
    Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
  • 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 https://moveb.net
    • https://moveb.net/invite/
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/sType/ResourceRef#
    • http://ns.adobe.com/xap/1.0/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
958f1b419979faf8c9a4731a89fd8bf053e05bf62be43e5d1a779e0bafcbb566		 xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 244276 bytes

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