Office (OLE) / .DOCX malware analysis — malicious · cd47947804cd66ca

MALICIOUS

Office (OLE) / .DOCX

163.8 KB Created: 2020-12-29 08:56:00 Authoring application: Microsoft Office Word

MD5: f5a730468ed8daa28578acee71b0c685 SHA-1: 0eab749475654892ef5efeccd8fb021d28dd6150 SHA-256: cd47947804cd66ca26d9c8df758faddba8ac6575fe2863e810a15237ff114fca

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The VBA code is designed to download and execute a second-stage payload, a common tactic for malware droppers. The presence of the 'Doc.Downloader.EmotetRed02224-9938637-0' ClamAV signature further supports this assessment.

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` `3e142f8f1ec045a49f005a6e1f22483ffd9a4a3fba2276e438481e79de80b3fc`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8366 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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