Emotet Office (OLE) / .DOC malware analysis — malicious · fa705eb6263361c6

MALICIOUS

Office (OLE) / .DOC

158.1 KB Created: 2020-09-17 04:18:00 Authoring application: Microsoft Office Word

MD5: 4a1f30a1d0435a19c1f850996c5cca4c SHA-1: 88b7a9819c6a513bdd84c932a97fc3af1183509f SHA-256: fa705eb6263361c6eebb3184c98461fb7337e38a1bc3efc73cbfca0dc7f2d98e

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The file is identified as malicious by ClamAV with the signature Doc.Downloader.Emotet-9762517-0. Static analysis reveals the presence of a Document_Open VBA macro that utilizes CreateObject, indicating it's designed to execute code upon opening. This macro likely functions as a downloader for a second-stage payload, a common characteristic of Emotet. The embedded URL, though benign, is likely a placeholder or part of the document's lure, with the actual malicious infrastructure being dynamically fetched by the VBA code.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-9762517-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-9762517-0
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` `991adc1ef45638c65bfb92a710fcbce350fe87d4c8d6f02dc16d9130cc12b6e6`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20616 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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