Emotet Office (OLE) / .DOCX malware analysis — malicious · 962a17d2cf91c9f5

MALICIOUS

Office (OLE) / .DOCX

168.3 KB Created: 2020-10-20 05:21:00 Authoring application: Microsoft Office Word

MD5: 49f079659929126cab1a0f28362896e7 SHA-1: 2f57070403f9d9d86dec13b85a96fe3beb863b81 SHA-256: 962a17d2cf91c9f5df4b767c711ed445db675831bfbe3f2f09faa707807e5fa4

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 this file as 'Doc.Downloader.Emotet-9780828-0', indicating it's a downloader for the Emotet banking trojan. High-severity heuristics confirm the presence of VBA macros, specifically a Document_Open macro that utilizes CreateObject. This macro is designed to execute a secondary payload, consistent with Emotet's typical behavior of downloading and running further malicious code. The document body content is heavily obfuscated and does not provide clear user-facing text, but the technical indicators strongly point to a malicious downloader.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9780828-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9780828-0
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` `4588401bd42bd39b75b9dcc9e4ef6377522769140839001e1d2af1038d6019be`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17619 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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