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

Static analysis result for SHA-256 039488b9c71e2e76…

MALICIOUS

Office (OLE) / .DOC

184.0 KB Created: 2020-10-22 06:54:00 Authoring application: Microsoft Office Word
MD5: d2bb812008d17e56bfe365937891d4ab SHA-1: 18d1b23f7e06802cb3e8aa4da8e9568f5b7f4f2e SHA-256: 039488b9c71e2e766329be6f4168cfd722d20fff1317c35c048babc57fa500ab
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious Office document containing obfuscated VBA macros. The 'Document_Open' macro and 'CreateObject' calls indicate an attempt to execute code upon opening. The ClamAV detection 'Doc.Downloader.Logan-9781905-0' strongly suggests a downloader functionality. The VBA code is heavily obfuscated, making it difficult to determine the exact payload or destination, but the overall pattern points to a downloader.

Heuristics 6

  • ClamAV: Doc.Downloader.Logan-9781905-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Logan-9781905-0
  • 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
9979b97c308d841b566985c48e8a84b999556c3e27641c5af6c36c44f3b0664e		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 18953 bytes

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