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

Static analysis result for SHA-256 10fffc6d57e68b22…

MALICIOUS

Office (OLE) / .DOCX

184.5 KB Created: 2020-10-22 06:54:00 Authoring application: Microsoft Office Word
MD5: cd57020499cd61da1bb77193e2de009f SHA-1: 8e3b32c2b172578c76df83b4e5be0002d105e344 SHA-256: 10fffc6d57e68b2224f5a7b35a28ed5e146334dff8d0f35d900451150058bb45
202 Risk Score

Malware Insights

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

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initiating malicious actions. The presence of CreateObject calls and the ClamAV detection as 'Doc.Downloader.Logan-9781905-0' strongly indicate that this document is designed to download and execute a secondary payload. The obfuscated nature of the VBA script prevents 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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