Office (OLE) / .DOCX malware analysis — malicious · 46d239d2bb9673a5

MALICIOUS

Office (OLE) / .DOCX

160.8 KB Created: 2020-12-30 10:10:00 Authoring application: Microsoft Office Word

MD5: f2e77c7dd9ba589ed71762ab7459e905 SHA-1: 692947b022060916608d2bb826b24f5d0af3d5a3 SHA-256: 46d239d2bb9673a53ed54e7e8db54331dc28f2b7bc15ba7088a3340bd13bde9e

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The critical ClamAV detection and high-severity heuristics indicate this is a malicious document downloader. The presence of a Document_Open macro that uses CreateObject strongly suggests it's designed to execute arbitrary code upon opening. The obfuscated document body and the 'macros.bas' artifact further support the conclusion that this file's primary purpose 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` `663869ec393d0a50f151da4884835577fc196722b5e56686c64f3948abebb4bb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6571 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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