Emotet Office (OLE) / .DOCX malware analysis — malicious · 57ccab2fc1f81d4b

MALICIOUS

Office (OLE) / .DOCX

157.1 KB Created: 2021-01-12 22:19:00 Authoring application: Microsoft Office Word

MD5: 79dfb1dd886e7e55fe2c8cfdef6fe1f0 SHA-1: 5a86e01745ec25ff0a989346ba6ed511b5542524 SHA-256: 57ccab2fc1f81d4b18e810f2b5d3f0834274c59f9a6d53cb4af3eb81768cd5b8

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious File

The file contains VBA macros, specifically a Document_Open auto-execution macro, which is a common technique for Emotet. The ClamAV detection explicitly names this file as an Emotet downloader. The presence of VBA macros and the auto-execution technique strongly indicate a malicious intent to download and execute a secondary payload.

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` `f080f423f3af32bf8c04d24f919af2345f2f15905193e2101e5f7b51599e8466`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	7512 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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