Office (OLE) / .DOCX malware analysis — malicious · e2f1be59a592252d

MALICIOUS

Office (OLE) / .DOCX

183.8 KB Created: 2020-12-23 07:47:00 Authoring application: Microsoft Office Word

MD5: f8cb948e649da5274a72ddca7d009ab0 SHA-1: 64f0192c01503de3e49c01f0d38ecad2540d08f4 SHA-256: e2f1be59a592252d8ca4e2fa82196b97ccb8967f41f6a7fed224944af38fae1a

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a "Document_Open" VBA macro that is configured to execute automatically upon opening the document. This macro uses CreateObject, a common technique for downloading and executing additional payloads. The ClamAV detection name "Doc.Downloader.EmotetRed02224-9938637-0" further suggests a downloader functionality. The document body contains heavily obfuscated text, likely intended to obscure the malicious nature of the document.

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` `d5578521430d19d3e1a741e6facd5db8ed236e25c6fc3d692889ddd7a6d225bf`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8783 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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