Office (OLE) / .DOCX malware analysis — malicious · 9828c9c819155af1

MALICIOUS

Office (OLE) / .DOCX

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

MD5: 9229f92df3900f6c23165fd9c0f266dc SHA-1: bf3db1f4417cb06bebaeeec46d851b0f44cf9033 SHA-256: 9828c9c819155af174adfcce8cc53b4dbc8e10db6f0f4b0661fe7225bb7f1b55

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains VBA macros, specifically a Document_Open auto-exec macro, which is a common technique for initiating malicious actions upon document opening. The presence of CreateObject calls and p-code execution further indicates a downloader or dropper functionality. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests a downloader family, likely Emotet, which aims to download and execute further stages of malware. The obfuscated document body text does not provide specific lures but the macro behavior is clear.

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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