Emotet Office (OLE) / .DOCX malware analysis — malicious · b25d126a1c1bb229

MALICIOUS

Office (OLE) / .DOCX

155.6 KB Created: 2020-10-19 08:55:00 Authoring application: Microsoft Office Word

MD5: 2f70aef1ef0cf940be49072c3e775e82 SHA-1: 01c831df4a3250ce1b365a2d51935b136a65de6c SHA-256: b25d126a1c1bb22993ac8165ecd2492e6dcf983d5fa89b4faaf33c6fd8a5ae2e

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a common technique for Emotet. The ClamAV detection explicitly names Emotet and identifies the file as a downloader. The presence of a Document_Open macro that uses CreateObject indicates the script likely downloads and executes a second-stage payload.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9780414-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9780414-0
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` `e05e00e5695f255205cdf8f3c815d1b7180582c720372a44ffa69b0bf5e004ae`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15558 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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