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

Static analysis result for SHA-256 72260fddfa04793a…

MALICIOUS

Office (OLE) / .DOCX

184.0 KB Created: 2020-10-22 06:54:00 Authoring application: Microsoft Office Word
MD5: 725255662d78431a69132b9630292e48 SHA-1: d7bc18f6a89b1b6288424abdc16466153f4cd2ce SHA-256: 72260fddfa04793a225f545c6e2e63e49eae09375ed3a8a64a5fd3164804be5e
202 Risk Score

Malware Insights

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initiating malicious actions upon opening the document. The critical ClamAV detection as 'Doc.Downloader.Logan-9781905-0' strongly suggests the macro's purpose is to download and execute a secondary payload. The obfuscated nature of the VBA script prevents a detailed analysis of its specific actions, but the overall pattern indicates 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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