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

Static analysis result for SHA-256 6a1c178a30f040e2…

MALICIOUS

Office (OLE) / .DOCX

158.1 KB Created: 2020-10-19 11:46:00 Authoring application: Microsoft Office Word
MD5: 6afae76a8370570f934b377165e17e06 SHA-1: 4a31196a7cf2a303d388c44efa4241904397ff7f SHA-256: 6a1c178a30f040e280b211b75d7a6bd7979bdea40c4e74f1c8e32d72775ed2e7
202 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The file contains VBA macros, specifically a Document_Open macro that uses CreateObject, indicating malicious intent. The macro is heavily obfuscated, suggesting an attempt to hide its true functionality, which is likely to download and execute a second-stage payload. The ClamAV detection further supports its malicious nature.

Heuristics 6

  • ClamAV: Doc.Trojan.Agent-9780503-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Trojan.Agent-9780503-0
  • 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
df3f11a486897c7a189da6e4d0ac7fa240cbe9ec205152865e455c6dee8f09c5		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 15642 bytes

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