Emotet Office (OLE) / .DOC malware analysis — malicious · 7bb2cb09892b3178

MALICIOUS

Office (OLE) / .DOC

267.0 KB Created: 2020-02-06 15:22:00 Authoring application: Microsoft Office Word

MD5: 17e449ad653d76271e93d71ed513d63f SHA-1: 3679f701f24f81aa5eefabe4b64de0cd2759915f SHA-256: 7bb2cb09892b3178210d28e4a87ca0f03c6200d03c3b62c503581a8a5a9867f6

300 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File T1140 Deobfuscate or Obfuscate Malicious Code

The file contains VBA macros, specifically a Document_Open macro that utilizes a hidden UserForm to execute a command stager. This is a common technique for Emotet to download and execute further malicious payloads. The ClamAV detection explicitly names this file as 'Doc.Dropper.Emotet-7580044-0', strongly indicating the Emotet family.

Heuristics 8

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.Dropper.Emotet-7580044-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Emotet-7580044-0
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` `6252b0f03936fa0334a0b07e98b4cc17695d46429f1f8e2604ffa213944fae1a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	37815 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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