Emotet Office (OLE) / .DOCX malware analysis — malicious · 7e78d353bf29cfd0

MALICIOUS

Office (OLE) / .DOCX

197.2 KB Created: 2020-09-24 13:34:00 Authoring application: Microsoft Office Word

MD5: 5e24b5525e515686acfed09e471c2d15 SHA-1: 90218aa2b87e7ca8660198a276b8a83663b2c2a3 SHA-256: 7e78d353bf29cfd042c3741647fea216a70d735df0b286f87383bc7732e6ff23

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a Document_Open macro suggests an attempt to immediately execute code upon opening the document. The ClamAV signature 'Doc.Downloader.EmotetRed02224-9938637-0' points towards the Emotet family, known for its downloader capabilities. The document body, though heavily obfuscated, appears to contain encoded strings that likely resolve to PowerShell commands, a common technique for downloading and executing further stages of malware.

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` `a837a74c15cb3b2b06d70805c30f06a3d350fde6faccbab7be73edc42a69bb80`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	25402 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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