Emotet Office (OLE) / .DOCX malware analysis — malicious · f5a0506b51204da8

MALICIOUS

Office (OLE) / .DOCX

131.2 KB Created: 2020-09-28 15:20:00 Authoring application: Microsoft Office Word

MD5: ba90e11cd492ef1566983ff0de65d59b SHA-1: 974d72a1c015b0e27c4bd3c979159ac37d3093e6 SHA-256: f5a0506b51204da89b5f307f453fe5d55c4bb82b07fd69e84a58e43a6e6c1217

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1204.002 Malicious File

The file contains VBA macros, specifically a Document_Open macro, which is a common execution vector for Emotet. The heuristic 'OLE_VBA_PCODE_AUTOEXEC_EXEC' indicates that the macro is designed to auto-execute upon opening the document using CreateObject. The ClamAV detection explicitly names this as Emotet. The document body content is obfuscated and appears to be junk data, likely to evade basic content analysis.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9768661-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9768661-0
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` `2ce77a90790088f293710a707301ae69bfebe17386d7804fba58a5e382e47c64`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6657 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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