Office (OLE) / .DOCX malware analysis — malicious · 6e2b783fde1f8f95

MALICIOUS

Office (OLE) / .DOCX

172.0 KB Created: 2021-01-22 12:16:00 Authoring application: Microsoft Office Word

MD5: 20d4a9de8d443c469bb54a3a0a108867 SHA-1: fbdf3628dc7ecf118a1d94eda7618d1f91cdacc6 SHA-256: 6e2b783fde1f8f9588c35e75996f79e89d09980908ee6a8f6451768e4b11d18e

202 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1140 Deobfuscate/Decode Files or Information

The sample is a malicious Office document containing a Document_Open VBA macro. This macro is designed to execute obfuscated VBA code, likely to download and execute a second-stage payload. The ClamAV detection name 'Doc.Malware.Emodldr-10033989-0' further supports its malicious nature. The VBA code's obfuscation and execution of external content indicate a downloader or droppper functionality.

Heuristics 6

ClamAV: Doc.Malware.Emodldr-10033989-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emodldr-10033989-0
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` `57c5fc8ce17815567da52642c52710073a1f26f502815de80b26d094034f9496`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16557 bytes

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