Emotet Office (OLE) / .DOC malware analysis — malicious · dc1e9878765611d1

MALICIOUS

Office (OLE) / .DOC

100.7 KB Created: 2019-12-19 05:44:00 Authoring application: Microsoft Office Word

MD5: cae00628e07074e0a0378ae2d7fb9892 SHA-1: b2968b56ac20ff6563ca49a46aff6616dacf5e27 SHA-256: dc1e9878765611d190ac3b2be0f294ca4ffbea8d68209ceeee3016af4ecfd5c2

340 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is a malicious OLE document containing VBA macros. Critical heuristics indicate a hidden UserForm command stager that uses CreateObject and GetObject to execute code. ClamAV identifies the file as Doc.Downloader.Emotet-7465219-1. The VBA macros likely download and execute a second-stage payload, consistent with Emotet's typical behavior.

Heuristics 9

VBA UserForm hidden-property command stager critical OLE_VBA_USERFORM_HIDDEN_COMMAND_STAGER

VBA auto-exec macro creates a COM object from a decoded variable and reconstructs command text through Split/Join and hidden UserForm properties such as ControlTipText, Tag, Pages, or HelpContextId. This is a high-confidence macro downloader/loader shape seen in the reviewed OLE set, but it is not an Office CVE exploit primitive.
ClamAV: Doc.Downloader.Emotet-7465219-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-7465219-1
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` `70c9e577179092f152d1f2a83d4d0e0d1f1699c1cc3c65251ba373a4034c59bd`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	13375 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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