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

Static analysis result for SHA-256 7413598d100342fe…

MALICIOUS

Office (OLE) / .DOCX

164.1 KB Created: 2020-10-20 08:13:00 Authoring application: Microsoft Office Word
MD5: e3113c0d16a6cc74c0de3c6686748af9 SHA-1: 197e5f9b84c56ee484e95f826b198a1ee0f29822 SHA-256: 7413598d100342fe05f0a14a4cea64699ad2b2fde0b19e1a4be982ead02b3a87
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059 Command and Scripting Interpreter

The sample is a malicious Office document containing a VBA macro. The 'Document_open' macro is present and uses 'CreateObject', indicating an attempt to execute code. The macro is heavily obfuscated, but its presence and the 'CreateObject' call strongly suggest it's designed to download and execute a secondary payload. The ClamAV detection further confirms its malicious nature.

Heuristics 6

  • ClamAV: Doc.Trojan.Agent-9781037-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Agent-9781037-0
  • 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
8eb6ba0866f4c6c9ad4d97b0723246709e3ca63ed0491e35acc3191e90884d63		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 17541 bytes

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