Emotet Office (OLE) / .DOCX malware analysis — malicious · 66d913564d58a029

MALICIOUS

Office (OLE) / .DOCX

200.4 KB Created: 2020-09-17 11:51:00 Authoring application: Microsoft Office Word

MD5: a1e99d6d2201371ba251c93dce3673a1 SHA-1: 99ba9a9798f91a0fb6bebf2023638b521223ca2e SHA-256: 66d913564d58a029460a22e9517893207a4fd7aefc71e100f7205f605488c040

204 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample contains VBA macros, specifically a Document_Open auto-execution macro, which is a strong indicator of malicious intent. The ClamAV detection explicitly names this as 'Doc.Dropper.EmotetWinMob0920-9636503-0', suggesting it's a known Emotet variant used for dropping further payloads. The macro's obfuscated nature and use of CreateObject further support the conclusion that it's designed to download and execute additional malicious content.

Heuristics 7

ClamAV: Doc.Dropper.EmotetWinMob0920-9636503-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.EmotetWinMob0920-9636503-0
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.
VBA macros detected medium OLE_VBA_MACROS

Document contains VBA macro code
Suspicious extracted artifact info 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.
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` `c3286e68fa3d09f0094cde843da13ffd003c4769e3d53082fc234c009c46407c`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19881 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 20 long base64-like blob(s).

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