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

Static analysis result for SHA-256 6016b7944e3bb576…

MALICIOUS

Office (OOXML) / .DOC

1.27 MB Created: 2022-11-01 14:58:00 UTC Authoring application: Microsoft Office Word 14.0000 First seen: 2022-11-11
MD5: a5f615de50abe3bff3048b9784d4138d SHA-1: 9af91faca4fe052f4b89f9a5bc21222eadfcfd4a SHA-256: 6016b7944e3bb576372fd48184935cd361c9fce2a48de043c5f45ab82d6ba691
230 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic for Applications T1059.001 PowerShell T1204.002 Malicious File

The sample contains a VBA macro that executes upon opening the document, indicated by the Document_Open heuristic. This macro likely attempts to download and execute a second-stage payload, as suggested by the critical OLE_VBA_SHELL and OLE_VBA_CREATEOBJ firings. The ClamAV detection name further supports its role as a downloader.

Heuristics 7

  • Shell() call in VBA critical OLE_VBA_SHELL
    Shell() call in VBA
  • ClamAV: Doc.Downloader.afc5c039d11fd238-9978787-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Downloader.afc5c039d11fd238-9978787-0
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • VBA project inside OOXML medium OOXML_VBA
    Document contains a VBA project — VBA macros present
  • Environ() call (env variable access) low OLE_VBA_ENVIRON
    Environ() call (env variable access)
  • 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.microsoft.com/office/word/2010/wordprocessingCanvas
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.openxmlformats.org/officeDocument/2006/relationships
    • http://schemas.openxmlformats.org/officeDocument/2006/math
    • http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing
    • http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing
    • http://schemas.openxmlformats.org/wordprocessingml/2006/main
    • http://schemas.microsoft.com/office/word/2010/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingGroup
    • http://schemas.microsoft.com/office/word/2010/wordprocessingInk
    • http://schemas.microsoft.com/office/word/2006/wordml
    • http://schemas.microsoft.com/office/word/2010/wordprocessingShape

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
9cddd51f0e9b4e1870cb807e8704674b50fe68d63151ecafb742d287cbf03f0d		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 17650 bytes
vbaProject_00.bin
525cb4558408b82b826956a493cc157ba56865b77404e5d5e74eac1860fc0b19		 vba-project OOXML VBA project: word/vbaProject.bin 36864 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.