Emotet Office (OLE) / .DOCX malware analysis — malicious · f3765724df77138e

MALICIOUS

Office (OLE) / .DOCX

170.4 KB Created: 2020-09-29 12:31:00 Authoring application: Microsoft Office Word

MD5: 42fefd75f0d458c8c615a7d7a38fbd3c SHA-1: 7d1561beb3d1385b8f616aea675872bf94d04d79 SHA-256: f3765724df77138ee6eb5f9f53ec66243d54daaeea73af0f12eb237ee2f1b8d7

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file contains VBA macros, specifically a Document_Open macro, which is a common technique for Emotet. The critical ClamAV detection also strongly suggests Emotet. The macro likely downloads and executes a second-stage payload, as indicated by the CreateObject heuristic and the general behavior of Emotet. The document body content appears to be obfuscated or corrupted, providing no direct clues to the lure.

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` `78af9bfbd851f0765d951c5fd87890712e4afc03034fdc1be9f16082b41d9b12`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8150 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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