Emotet Office (OLE) / .DOCX malware analysis — malicious · 42924445248925ca

MALICIOUS

Office (OLE) / .DOCX

191.5 KB Created: 2020-10-01 13:24:00 Authoring application: Microsoft Office Word

MD5: f62d2554a16d13ea31e3bf15e3a94ea8 SHA-1: 2eafa5153cd2f00b6eb29cd4f0c08f38159c6043 SHA-256: 42924445248925ca63dfe357ea9bb0db36187cc9ab8ccbf32dff5aace6cffbdc

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection explicitly identifies this file as 'Doc.Downloader.Emotet-9770099-0'. Heuristics confirm the presence of VBA macros, specifically a 'Document_Open' macro that uses 'CreateObject' for execution. This indicates the document is designed to automatically run malicious code upon opening, likely to download and execute a second-stage payload. The presence of the 'macros.bas' artifact further supports this. The document body content is heavily obfuscated and does not provide clear user-facing text.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9770099-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9770099-0
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` `036fd4509daa7ddddbb4b351244a67d134d9405ade9668761579d4b986a83b62`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10439 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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