Office (OLE) / .DOCX malware analysis — malicious · 82d7ccf8a708facd

MALICIOUS

Office (OLE) / .DOCX

161.9 KB Created: 2021-01-04 16:15:00 Authoring application: Microsoft Office Word

MD5: 3ce63ae43fd3547d815036594f67858b SHA-1: 8a161f38eb66a637d8f91dfaee6db1206b7609f2 SHA-256: 82d7ccf8a708facd6356a918e9930803db68740bffed556687da9891ebb7910c

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a macro-enabled Word document that triggers a Document_Open macro. This macro uses CreateObject to execute VBA code, which is a common technique for downloading and executing second-stage payloads. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' suggests a downloader, likely related to the Emotet family, though direct attribution is not possible from the provided evidence.

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` `b7c08445609ad3b9c2a0766b1423df26453c524cbf6c8eca0da53a1732c00612`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	7252 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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