Emotet Office (OLE) / .DOCX malware analysis — malicious · eac747b64de29080

MALICIOUS

Office (OLE) / .DOCX

161.1 KB Created: 2020-09-24 23:07:00 Authoring application: Microsoft Office Word

MD5: 24b9e1ba5005366e4382c97cfee2bc56 SHA-1: 681897aa6e10253529009485f533807c5590f37d SHA-256: eac747b64de29080e128302ff648719d8fefcbbce47c9065edefa2ea5862f74d

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains a high-confidence detection for Emotet, a known downloader family. Critical heuristics indicate a VBA macro that automatically executes upon opening, specifically using CreateObject to likely launch a secondary payload. The document body, though heavily obfuscated, appears to contain encoded PowerShell commands, suggesting the VBA macro's purpose is to decode and execute these commands. This aligns with Emotet's typical behavior of downloading and executing further malicious stages.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9765780-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9765780-0
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` `822ca2bb5afccdd585dd9d4b3c04999cc0b411b7c4b99b6e373f1239fc1c4ef1`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	26832 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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