Emotet Office (OLE) / .DOCX malware analysis — malicious · d0916058bac3e572

MALICIOUS

Office (OLE) / .DOCX

177.2 KB Created: 2020-09-18 13:57:00 Authoring application: Microsoft Office Word

MD5: 8285897c205ae549b4210867c8994245 SHA-1: 1b5830054584a8a35e41a63a879bc42342759054 SHA-256: d0916058bac3e5720c7979d05019d5fbffb9f64eb341116f0d3febff67abea01

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment T1105 Ingress Tool Transfer

The file is identified as malicious by ClamAV with the signature 'Doc.Downloader.Emotet-9763587-0', strongly suggesting the Emotet family. High-severity heuristics indicate the presence of VBA macros, specifically a 'Document_Open' macro that uses 'CreateObject' for execution. This points to an automated execution of malicious code upon opening the document, typical for Emotet's downloader functionality. The document body content is heavily corrupted and unreadable, providing no direct clues to the lure.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9763587-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9763587-0
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` `d480f4e62437f12b4fdbfa09699c3791dd8e97ee1633f946eb76ef39a2f5d3e4`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20121 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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