Emotet Office (OLE) / .DOC malware analysis — malicious · 3701a4b999b50d19

MALICIOUS

Office (OLE) / .DOC

137.8 KB Created: 2020-09-28 21:18:00 Authoring application: Microsoft Office Word

MD5: 7851090b9cbac1e717b67acc6608f8cf SHA-1: fbed79bb20aa248667e5ff55cea221544c593f6b SHA-256: 3701a4b999b50d19e9080f89acac7407c856e767e7cb850470ce49c7352ab16f

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file is a malicious DOC document containing VBA macros, specifically a Document_Open macro that uses CreateObject to execute code. This is a strong indicator of Emotet activity, which commonly uses macro-enabled documents for initial infection. The presence of the 'macros.bas' artifact and the ClamAV detection further support this classification. The macro's execution of arbitrary code is the primary attack vector.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9769000-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9769000-0
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` `af1832d1f4c91fc85d2c99e2822b1b7480a5e715a732a96dc374f162b3694b82`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	6632 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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