Emotet Office (OLE) / .DOC malware analysis — malicious · ba03dd83921cfb2b

MALICIOUS

Office (OLE) / .DOC

143.1 KB Created: 2020-09-25 19:15:00 Authoring application: Microsoft Office Word

MD5: 3ddf63a2afd7242fa01827c93f5ddd7e SHA-1: 6079701c14a11e66b79799c82282db6daf57e37d SHA-256: ba03dd83921cfb2bcf5f655a6651e0777828b825417be2ed69fe9dc8f707a27d

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_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate a malicious document. The presence of a Document_Open macro that uses CreateObject is a common Emotet delivery technique. The ClamAV signature specifically names Emotet, increasing confidence in the family attribution. The document body content is heavily obfuscated and appears to be a string concatenation of junk data, providing no direct clues to the user-facing lure.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9768415-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9768415-1
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` `f7aec5ed0700c38686fed103b8e955ba1df17f289b657d0b562d676e1e8a24d1`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16307 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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