Emotet Office (OLE) / .DOCX malware analysis — malicious · 35ef0a522e2f7f98

MALICIOUS

Office (OLE) / .DOCX

196.4 KB Created: 2020-09-24 13:34:00 Authoring application: Microsoft Office Word

MD5: 5cc45030dd373bf7b98b4975eb6733de SHA-1: 6dd94b4fe6e4deb3036dd411a9fb00e0c6427123 SHA-256: 35ef0a522e2f7f98db76cd53d203d6389d65b2c0337b598482f1ca0fcfe5953d

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file contains a malicious VBA macro, specifically a Document_Open auto-exec macro, which is a common delivery mechanism for Emotet. The macro utilizes CreateObject to execute a PowerShell command, as indicated by the heuristic firings. The ClamAV detection name further supports the Emotet family attribution. The document body appears to be obfuscated or corrupted, but the presence of the macro and its execution pattern are strong indicators of malicious intent.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `a837a74c15cb3b2b06d70805c30f06a3d350fde6faccbab7be73edc42a69bb80`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25402 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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