Office (OLE) / .DOCX malware analysis — malicious · 6776f53efed3f91a

MALICIOUS

Office (OLE) / .DOCX

168.5 KB Created: 2021-01-22 16:11:00 Authoring application: Microsoft Office Word

MD5: 7db649ee0163b76013e5d1fecb1a8b03 SHA-1: cdb7371dd1835f9e15ed7508b3e35683b0ac043a SHA-256: 6776f53efed3f91af5955bfaf11f47dbf6fcf5b5a419e1bcc5a29fb89a61ea49

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious Office document containing VBA macros, specifically a Document_Open macro. This macro executes obfuscated VBA code that appears to process the document's content, likely as part of a downloader or initial execution stage. The ClamAV detection 'Doc.Malware.Emodldr-10033990-0' suggests a known malware family, but the specific variant is not immediately identifiable from the provided evidence.

Heuristics 6

ClamAV: Doc.Malware.Emodldr-10033990-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emodldr-10033990-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject 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` `5ed4257a756cf59fd0bdd4996a568d11e210a8cb1fd2c78a16a7c0bd2a73f2f9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16688 bytes

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