Malicious Office (OLE) / .DOC — malware analysis report

Static analysis result for SHA-256 ce3f71cee71356e2…

MALICIOUS

Office (OLE) / .DOC

141.0 KB Created: 2020-03-17 09:58:18 Authoring application: Microsoft Excel
MD5: ba1ffee661fff50f2b57dfc487ec4927 SHA-1: 7b0b1119e2deb48ecf1c41fc1035b8ce34d8b5f4 SHA-256: ce3f71cee71356e2394336680b4e62d14361ff182fbed24796ff9fd3b3485edc
60 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Service Execution: Service Execution

The sample is an Excel 4.0 macro-enabled document. Heuristics indicate the presence of an Auto_Open macro that uses dangerous formula APIs, specifically the RUN function. This macro likely attempts to download and execute a payload from the embedded URL https://tdvomds.pw/12341324rfefv.

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://tdvomds.pw/12341324rfefv

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
xlm_macros.txt
f4426b19de61f92df0c3897de1ec6e5053cbd6866375e1da133c04d5f9a9d8f1		 xlm-macro oletools.olevba.extract_all_macros (XLM macro listing) 3945 bytes

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