Emotet Office (OLE) / .DOCX malware analysis — malicious · 625bba582b51e78a

MALICIOUS

Office (OLE) / .DOCX

194.6 KB Created: 2020-09-16 06:48:00 Authoring application: Microsoft Office Word

MD5: 90a3471999934195d6db891b5945c49d SHA-1: b5bcbf1e0550b1f54047487b0e4cdb85505f3fc7 SHA-256: 625bba582b51e78a3357c2a0a1a92ff5b0696389a7e3ced3a2ef1200623317d6

202 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for Emotet. The macro uses CreateObject and obfuscated code, indicating an intent to download and execute a second-stage payload. ClamAV detection also strongly suggests Emotet.

Heuristics 6

ClamAV: Doc.Malware.Emotet-9762408-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9762408-0
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.
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` `df4fb732414a2f9f369567b5a31d1b266832fcbd15a8b5f56fa79c20074a71e7`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25460 bytes

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