Office (OLE) / .DOCX malware analysis — malicious · 6a0d97aaeb191308

MALICIOUS

Office (OLE) / .DOCX

214.4 KB Created: 2020-09-21 07:35:00 Authoring application: Microsoft Office Word

MD5: bc562e122c413a854ee79996957432e6 SHA-1: 2b094736c7489d7630c86d94e91944dcad2d7238 SHA-256: 6a0d97aaeb19130893ef6d26d7322911d12491373836f4158973305a62ee263a

242 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1204.002 Malicious File

The sample is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject calls. This indicates an attempt to execute code automatically when the document is opened. The ClamAV detection as 'Doc.Downloader.Generic' strongly suggests the macro's purpose is to download and execute a secondary payload. No specific family could be identified, but the behavior is consistent with a downloader.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9764473-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9764473-0
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` `a72546be4835befa0cd5934bb3d180228dbaffbae6f31f70f11c03f05171f092`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19249 bytes

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