Malicious Office (OLE) — malware analysis report

Static analysis result for SHA-256 13e7a12a234255db…

MALICIOUS

Office (OLE)

141.0 KB Created: 2020-10-15 11:18:00 Authoring application: Microsoft Office Word
MD5: 47e8e7831f90872c5110afb3dd565b68 SHA-1: 30d137d38a1064f656d3dbddbcc2c6fc186da475 SHA-256: 13e7a12a234255dbef8723f3ecfc4668aa50d7288e8927eac45d7e1730351201
202 Risk Score

Malware Insights

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

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for initiating malicious actions. The script uses CreateObject to likely download and execute a second-stage payload. The ClamAV detection name 'Doc.Downloader.Amphitryon-9778217-0' further supports this downloader behavior.

Heuristics 6

  • ClamAV: Doc.Downloader.Amphitryon-9778217-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.Amphitryon-9778217-0
  • 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
ceb2cd1feb993343b43c1a562f1511ffad0916ca06ac60b4283e0a65886cd4c5		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 10625 bytes

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