Office (OLE) / .DOCX malware analysis — malicious · 17d458a76189b8fc

MALICIOUS

Office (OLE) / .DOCX

152.5 KB Created: 2020-09-22 12:58:00 Authoring application: Microsoft Office Word

MD5: 7bda883377590b3d66173f52134ea0fe SHA-1: 6c72756b3fcdae07bfdc8ef4c0438e9d05bf1e6d SHA-256: 17d458a76189b8fcbbd8bb4ba3393ec337aeeef13c4c0cd2ae40c45355d32f1b

242 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open macro that executes code using CreateObject and GetObject. The ClamAV detection name 'Doc.Malware.Ewtz-9765445-0' strongly suggests malicious intent. The VBA code appears obfuscated, but the presence of auto-execution macros indicates an attempt to run malicious code upon opening, likely to download further stages.

Heuristics 7

ClamAV: Doc.Malware.Ewtz-9765445-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Ewtz-9765445-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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.

Filename	Kind	Source	Size
`macros.bas` `3534612e311adddbcf2e093d61bfa43aa100b688e0fa70d64062312eb6cd9cc9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17155 bytes

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