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

Static analysis result for SHA-256 1148a9b34b21e97d…

MALICIOUS

Office (OLE) / .DOC

199.8 KB Created: 2020-09-21 15:38:00 Authoring application: Microsoft Office Word
MD5: 1b007542aea3d00ce5aa038128a7a9d2 SHA-1: 21a872768a0467d128ba789f15781bc690f386cf SHA-256: 1148a9b34b21e97dbee2bd8eaf93cdff9c926f3e2f8d36f1feac85162d178278
242 Risk Score

Malware Insights

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

The sample is a malicious OLE document containing VBA macros. The 'Document_Open' macro is present and configured to execute automatically, indicating an attempt to run malicious code upon opening. Heuristics suggest the use of 'CreateObject' and 'GetObject', common for downloading and executing payloads. The ClamAV detection further confirms its malicious nature as a downloader.

Heuristics 7

  • ClamAV: Doc.Downloader.Generic-9764611-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Generic-9764611-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • GetObject call high OLE_VBA_GETOBJ
    GetObject 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
5d7bb4a979a8044f246ba5c84f189375b54b56efdae346456cb14e1498096bdd		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 19055 bytes

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