Emotet Office (OLE) malware analysis — malicious · ad2a3edc5a699ad4

MALICIOUS

Office (OLE)

142.7 KB Created: 2020-10-15 06:09:00 Authoring application: Microsoft Office Word

MD5: 47d47061d2a8675fe16745b20340e9f1 SHA-1: 10bc38d0a421011a1c875db8636e34748a2107f1 SHA-256: ad2a3edc5a699ad4c1b071969c0b0127fec759832223bb7c03186b32174fc224

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 VBA macros, specifically a Document_Open macro that utilizes CreateObject, indicating malicious intent. ClamAV detection confirms this as Doc.Downloader.Emotet-9778170-0. The presence of the macros.bas file further supports the macro-based execution. The primary attack pattern involves the execution of a VBA macro that likely downloads and executes a secondary payload, consistent with Emotet's behavior.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9778170-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9778170-0
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` `c973a96acafb9aae0a5d75a01318346c913bca2d5caab3be2a38d764d4134fb6`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	11038 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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