Emotet Office (OLE) / .DOCX malware analysis — malicious · e67a507d777e002e

MALICIOUS

Office (OLE) / .DOCX

189.5 KB Created: 2020-10-21 20:47:00 Authoring application: Microsoft Office Word

MD5: b526b207f48d6294177c0ec10b379669 SHA-1: 2f49ca5c298303c93d0c745a4190d8160def4af8 SHA-256: e67a507d777e002eee507ccec06969302b4e54c01e686bb88b3368c97fd09fa6

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file contains a malicious VBA macro, specifically a Document_Open auto-exec macro, which is designed to execute code upon opening the document. The ClamAV detection name 'Doc.Dropper.EmotetBlueUpdate1020-9780531-0' strongly suggests the Emotet family. The macro likely downloads and executes a second-stage payload, a common Emotet behavior. The embedded URL, though benign according to reputation, is listed as an IOC due to its presence in the extracted data.

Heuristics 7

ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
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` `de68eb219c86c839b194b174abd2b170f818ab76547e269289797596310c601e`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	23214 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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