Emotet Office (OLE) / .DOCX malware analysis — malicious · 2c84e779ac606f18

MALICIOUS

Office (OLE) / .DOCX

163.2 KB Created: 2020-12-29 08:56:00 Authoring application: Microsoft Office Word

MD5: 10a03f60d58ac916314b190f2c76b900 SHA-1: f9877daef92465bc26f1436c2ea26d810b4a2138 SHA-256: 2c84e779ac606f183438bb53e8924fd693e3a9fb43d933dd8afbe02ac2b57fa6

240 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 via Document_Open and CreateObject calls, strongly indicate a downloader. The presence of a VBA macro named 'macros.bas' further supports this. The macro's likely intent is to download and execute a second-stage payload, consistent with Emotet's typical behavior.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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` `3e142f8f1ec045a49f005a6e1f22483ffd9a4a3fba2276e438481e79de80b3fc`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8366 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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