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

Static analysis result for SHA-256 10f4a35042e159a7…

MALICIOUS

Office (OLE) / .DOCX

173.5 KB Created: 2021-01-22 12:16:00 Authoring application: Microsoft Office Word
MD5: ab889055f0708460cff9943e35f73460 SHA-1: 661f65c4445f77eaf7fe012a76e466a5902173e6 SHA-256: 10f4a35042e159a7faac41b277d0fce260d4cc68b72f7a61e569235781425a9f
202 Risk Score

Malware Insights

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

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for malware delivery. The macro utilizes CreateObject, indicating an attempt to execute code. The ClamAV detection 'Doc.Malware.Emodldr-10033989-0' further supports the malicious nature of the file, suggesting it's a known downloader variant.

Heuristics 6

  • ClamAV: Doc.Malware.Emodldr-10033989-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Emodldr-10033989-0
  • 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
57c5fc8ce17815567da52642c52710073a1f26f502815de80b26d094034f9496
vba-macro oletools.olevba.extract_macros (decoded VBA source) 16557 bytes