Office (OOXML) malware analysis — malicious · dad2a2eac5028ec9

MALICIOUS

Office (OOXML)

20.6 KB Created: 2021-07-11 09:14:00 UTC Authoring application: Microsoft Office Word 16.0000

MD5: c84c9ca65d4f5a3582a0a32d7b38f657 SHA-1: 25a89ab59a74903d7de1237f623b493aba49a0a8 SHA-256: dad2a2eac5028ec9de50350463c49825fc8f7858b104f802c3bde54784ab8744

182 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

This OOXML document contains VBA macros, specifically an AutoOpen macro, which is a common technique for executing malicious code upon opening. The presence of ClamAV detections like 'Doc.Malware.Valyria-10015188-0' strongly indicates malicious intent. The VBA code appears to be attempting to create and execute a process, suggesting it's a downloader or initial execution stage for further malware.

Heuristics 5

ClamAV: Doc.Malware.Valyria-10015188-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Valyria-10015188-0
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.
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
VBA project inside OOXML medium OOXML_VBA

Document contains a VBA project — 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.

Filename	Kind	Source	Size
`macros.bas` `45ae183ac857a880046927fb9355d4966da101773971dedddb0d3988135d3431`	vba-macro	oletools.olevba.extract_macros (decoded VBA source from OOXML)	4342 bytes
`vbaProject_00.bin` `a615a04cc35dc50d522b332addffcb61d1266037c93b3cb2aba393f057cb37a1`	vba-project	OOXML VBA project: word/vbaProject.bin	22016 bytes
Detection ClamAV: Doc.Malware.Valyria-10015188-0 Obfuscation or payload: unlikely

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