Emotet Office (OLE) malware analysis — malicious · 8d434d6a50e5fe38

MALICIOUS

Office (OLE)

141.3 KB Created: 2020-10-15 06:34:00 Authoring application: Microsoft Office Word

MD5: fbede85e4d2942608820cdf3fc54389a SHA-1: c1c884aa762e3df727d953861b53ee939a59ce3c SHA-256: 8d434d6a50e5fe380cefb3a54a385aaf397ad6f13a81e6c8a036d614b5d3aeb5

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 and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro activity. The presence of a Document_Open macro that uses CreateObject is a common pattern for Emotet. The embedded URL, though benign according to the reputation label, is often used in conjunction with malicious payloads. The VBA macros are designed to execute arbitrary code, likely downloading and running a second-stage payload.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9778165-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9778165-0
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` `aa3822bbb419da819c0009ca2a50458591c2a917d376ecb16e3e87f227973bcb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10774 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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