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

Static analysis result for SHA-256 0cb7923188e9a634…

MALICIOUS

Office (OLE) / .DOC

184.0 KB Created: 2020-10-22 06:54:00 Authoring application: Microsoft Office Word
MD5: 5d6c3c6b8237e539464eb7c79bce3498 SHA-1: 376d5408379fd37a506c5e90c4da11a4f59adb32 SHA-256: 0cb7923188e9a634088245ec66429aa8e07b0e7b004afe073f3df84f232513f8
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 obfuscated VBA macros. The presence of a Document_Open macro and CreateObject calls indicates an attempt to automatically execute malicious code upon opening. The ClamAV detection 'Doc.Downloader.Logan-9781905-0' strongly suggests the macro's purpose is to download and execute a secondary payload, aligning with the Ingress Tool Transfer technique. The VBA code itself is heavily obfuscated, preventing a more detailed analysis of its specific actions.

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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