Emotet Office (OLE) / .DOCX malware analysis — malicious · fccb2d705dea3213

MALICIOUS

Office (OLE) / .DOCX

208.2 KB Created: 2020-10-30 08:52:00 Authoring application: Microsoft Office Word

MD5: a87a5879e37f96ce17b7b4d28f481cfa SHA-1: 3700b4704df73c29fad69cd658447f6173c735f1 SHA-256: fccb2d705dea3213ad114cccb819717b0be64264f06779e9084ec9b4e98dccd1

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The presence of a Document_Open macro suggests an attempt to automatically run code upon opening the document. This code likely functions as a downloader, as indicated by the EmotetRed02224 ClamAV signature, aiming to retrieve and execute further malicious payloads.

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` `3b4c2a22d0b516cd2d6141ac35df0fe0efc5e56c8812d3fa768461278bc89f15`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17545 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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