Office (OLE) / .DOCX malware analysis — malicious · 354fbbb2af2dad8f

MALICIOUS

Office (OLE) / .DOCX

165.5 KB Created: 2021-01-05 07:28:00 Authoring application: Microsoft Office Word

MD5: ac9df6f771cb50649448e29dee20e302 SHA-1: 72a57cb9a311fdc4d59c752bad0d4de750f2a0cd SHA-256: 354fbbb2af2dad8f2270e8cd213d7cb66905fcc775c18f93f5db2c5151912229

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic for Applications T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file contains a high number of critical and high severity heuristic firings related to VBA macros, including an auto-executing Document_Open macro and CreateObject calls. The ClamAV detection specifically identifies it as a downloader. The presence of VBA macros and the auto-execution mechanism strongly suggest the intent is to download and execute a second-stage payload.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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` `a19bea0b68e66c642d89ca357193de473f2db600ca0ce526dc79ce8aaabe41a9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10612 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved macro source contains an auto-exec entry point and execution/download terms.

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