Emotet Office (OLE) / .DOCX malware analysis — malicious · a379c99d0452638d

MALICIOUS

Office (OLE) / .DOCX

142.8 KB Created: 2020-09-29 09:08:00 Authoring application: Microsoft Office Word

MD5: 6c77456f50c6d923464ebe87e8536607 SHA-1: e63d7697ed1fefa362bbccee8584ce1e08a865a7 SHA-256: a379c99d0452638d4c8f009ee52263def6724224858745b1828a7141006c8647

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC indicate the presence of a malicious VBA macro that executes upon document opening. This macro is characteristic of Emotet downloaders, which typically download and execute further payloads. The presence of the 'macros.bas' artifact confirms the VBA macro content.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9769137-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9769137-0
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` `2f5b3223d32b6b79c027453efef3c5410c27df5205b9cb2b32dd9a1e0304e007`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8132 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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