Emotet Office (OLE) / .DOCX malware analysis — malicious · 28fe9c0eafe150e2

MALICIOUS

Office (OLE) / .DOCX

152.8 KB Created: 2020-09-23 06:50:00 Authoring application: Microsoft Office Word

MD5: f2510de656dc4ec71c40dc67f75a00fd SHA-1: 8c71e6b95c5eb5ba697040b4369f11bbc063cf1b SHA-256: 28fe9c0eafe150e2f7464f22aaf91161ff9872a6b9a3559b6dbed7d1dda0a22b

280 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a Document_Open macro suggests an attempt to immediately execute malicious code upon opening the document. While no specific download URL was extracted, the overall pattern is consistent with Emotet's typical behavior of downloading and executing further stages.

Heuristics 8

ClamAV: Doc.Downloader.Emotet-9765526-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9765526-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `b9cffb0e79babc4a34c180b4e03d44a772a85b301d6c58e52fd57eb504592664`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19838 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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