Office (OLE) / .DOCX malware analysis — malicious · 3220a607cad214a8

MALICIOUS

Office (OLE) / .DOCX

159.0 KB Created: 2020-12-29 13:14:00 Authoring application: Microsoft Office Word

MD5: 3222bf2dbf6c2c835889a473f1e1b63c SHA-1: c89f17e0d0c2570a68189ec68dac13fa34508b36 SHA-256: 3220a607cad214a83f7491a28fab782cba46277dad8762d709daf628333b2b4e

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a VBA macro that automatically executes upon opening the document. This macro utilizes CreateObject, a common technique for downloading and executing additional payloads. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests a downloader functionality, likely Emotet, although specific attribution is not confirmed. The embedded URL, while benignly labeled, is often used as a placeholder or part of the obfuscation in such attacks.

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` `f0a26dbda37cee5a9e56f370f4faad071837ea1fd898646f154d0f1b66a66162`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8375 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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