Emotet Office (OLE) / .DOC malware analysis — malicious · b32a7533a0ebe0f5

MALICIOUS

Office (OLE) / .DOC

172.8 KB Created: 2020-09-16 17:53:00 Authoring application: Microsoft Office Word

MD5: 433a021ad24869a309246d8edac8daed SHA-1: 2fb9240bd41a308a3f4508a09055ce9a70ce3de5 SHA-256: b32a7533a0ebe0f5dd740d859533ca587c09f73e5f24b4e40aa39fff31421805

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 the sample as 'Doc.Downloader.Emotet-9762403-0'. Heuristics confirm the presence of VBA macros, specifically a Document_Open auto-execution macro that utilizes CreateObject, indicating it's designed to run code upon opening. This strongly suggests the document's purpose is to download and execute a secondary payload, consistent with Emotet's typical behavior.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9762403-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9762403-0
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` `8652fa84bae7aecf6dc2e590de1592dcbeadd44b5d7c078d4a40653b6bbf7777`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19075 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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