Emotet Office (OLE) / .DOCX malware analysis — malicious · b7d97ac0c5f85d59

MALICIOUS

Office (OLE) / .DOCX

175.5 KB Created: 2020-10-27 21:28:00 Authoring application: Microsoft Office Word

MD5: e102536c1df8f6ddb7e93ce68f1aaeb5 SHA-1: 7b087d4926c601d85aba55d706190064efea7db2 SHA-256: b7d97ac0c5f85d598f7d35cada41a79f6df1a2d59cac47a0cef13b36794f4d82

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names Emotet, a well-known banking trojan and downloader. The macro's likely purpose is to download and execute a second-stage payload, consistent with Emotet's typical behavior. The obfuscated document body text does not provide further clues to the specific lure.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9784450-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9784450-1
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` `8e0ab8816d43bd5ad9c1c0011689607d8d62edfed4931a09dce2c4955c56dadb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16529 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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