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

Static analysis result for SHA-256 14f5ffed45fb885d…

MALICIOUS

Office (OLE) / .DOC

161.0 KB Created: 2020-09-23 16:14:00 Authoring application: Microsoft Office Word
MD5: eb7f41ba4ed5a2651491dcf6289bf529 SHA-1: 452b6be62f401f8db7f0e91d54eb41ac21edbba3 SHA-256: 14f5ffed45fb885d696df83a814abb0453ef7fdde4c0dc70283ae4ff8b4264db
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The sample is a malicious Office document containing VBA macros. The 'Document_Open' macro is configured to execute automatically, and it utilizes 'CreateObject' to initiate the download and execution of a secondary payload. The ClamAV detection 'Doc.Downloader.Mryv-9765643-0' further confirms its malicious nature as a downloader.

Heuristics 6

  • ClamAV: Doc.Downloader.Mryv-9765643-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Mryv-9765643-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA p-code auto-exec with execution tokens high OLE_VBA_PCODE_AUTOEXEC_EXEC
    Compiled VBA/cache stream contains an auto-execution token together with shell/download/object-execution tokens. This catches p-code-only or source-extraction-failure macro documents where visible source is unavailable.
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code
  • 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://schemas.openxmlformats.org/drawingml/2006/main

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
4e016061374d8047a04e9d27ce15b34d5d8f5bdde1ceed7ac2e233319ab9b7ac		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 20022 bytes

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