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

Static analysis result for SHA-256 4d569f6ba4df6403…

MALICIOUS

Office (OOXML) / .DOCX

136.3 KB Created: 2020-01-24 18:12:00 UTC Authoring application: Microsoft Office Word 16.0000
MD5: 19a23132102c2fe433739f33d35a48d6 SHA-1: 1e11cf1a022adcbee422504aa86984fbc066f6e3 SHA-256: 4d569f6ba4df6403f6ab2f7b4f679869e86665927f684d1bca67104f3ab7487b
220 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1204.002 Malicious File

The file is a DOCX document containing VBA macros, specifically a Document_Open macro and a GetObject call, which are common indicators of malicious activity. ClamAV detections confirm this file is malicious. The presence of VBA macros suggests the document is designed to execute arbitrary code, likely to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Doc.Malware.Generic-7561115-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Malware.Generic-7561115-0
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Document_Open macro high OLE_VBA_DOCOPEN
    Document_Open macro
  • GetObject call high OLE_VBA_GETOBJ
    GetObject call
  • VBA project inside OOXML medium OOXML_VBA
    Document contains vbaProject.bin — VBA macros present
  • 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.microsoft.com/office/drawing/2014/chartex
    • http://schemas.microsoft.com/office/drawing/2015/9/8/chartex
    • http://schemas.microsoft.com/office/drawing/2015/10/21/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/9/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/10/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/11/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/12/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/13/chartex
    • http://schemas.microsoft.com/office/drawing/2016/5/14/chartex
    • http://schemas.openxmlformats.org/markup-compatibility/2006
    • http://schemas.microsoft.com/office/drawing/2016/ink
    • http://schemas.microsoft.com/office/drawing/2017/model3d
    • 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/2012/wordml
    • http://schemas.microsoft.com/office/word/2018/wordml/cex
    • http://schemas.microsoft.com/office/word/2016/wordml/cid
    • http://schemas.microsoft.com/office/word/2018/wordml
    • http://schemas.microsoft.com/office/word/2015/wordml/symex
    • 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
2d88aceaeda9e6a169e3771c3f4beaa4acd18099617d450507f3dc641e23ce47		 vba-macro oletools.olevba.extract_macros (decoded VBA source from OOXML) 13281 bytes
vbaProject_00.bin
8c1b782d411a7b4e4d760a5eeeffaf0b56ea41a2cdd45705833f1026fba12949		 vba-project OOXML VBA project: word/vbaProject.bin 112640 bytes
Detection
ClamAV: Doc.Malware.Generic-7561115-0
Obfuscation or payload: unlikely

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