Emotet Office (OLE) / .DOCX malware analysis — malicious · c854591c30dd20a4

MALICIOUS

Office (OLE) / .DOCX

167.5 KB Created: 2020-10-26 10:57:00 Authoring application: Microsoft Office Word

MD5: 15248b8ed6529cd10ca3199549fa30bd SHA-1: 2336c32bee00e9057329b08b1a04e93b685ac42b SHA-256: c854591c30dd20a4c6b14791ce0ec5cf30d24fa0305b8862dd1a10f255b64e94

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The sample contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as 'Doc.Downloader.Emotet-9783962-0', and the presence of a 'macros.bas' file further supports this. The macro's functionality likely involves downloading and executing a second-stage payload, a common Emotet behavior.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9783962-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9783962-0
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` `73da4e56546636c0246d24a128ee097e3f12e124f4b51048532455144fb1d70c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15915 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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