Emotet Office (OLE) / .DOCX malware analysis — malicious · 2f7a6f37a7a19e9d

MALICIOUS

Office (OLE) / .DOCX

167.9 KB Created: 2020-09-24 20:34:00 Authoring application: Microsoft Office Word

MD5: a90540ebc916313cbda30631da741c41 SHA-1: 1be5e571927989bce256d64b80ba59dc24427249 SHA-256: 2f7a6f37a7a19e9da53854546cecd329d172d98e27dd512d348a384638f227b6

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.001 PowerShell T1059.005 Visual Basic T1204.002 Malicious File

The file contains a high-confidence detection for Emotet, a known downloader family. The critical ClamAV detection and high-severity heuristics for VBA macros, specifically an auto-executing Document_Open macro that uses CreateObject, strongly indicate malicious intent. The document body, though heavily obfuscated, appears to contain encoded strings that likely resolve to PowerShell commands. The presence of a VBA macro that executes a PowerShell command is a common Emotet delivery technique, suggesting the macro is designed to download and execute a further payload.

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` `20065c1f06a22de094d8fc279802a5adedc919206be7ae0d9cd9ee9d315ea30b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25868 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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