Emotet Office (OLE) / .DOC malware analysis — malicious · 534cc65e4c128d4d

MALICIOUS

Office (OLE) / .DOC

168.6 KB Created: 2021-01-05 06:14:00 Authoring application: Microsoft Office Word

MD5: 6bfb0550d39db00f20901f5851572688 SHA-1: fb9a0476b7245d7ee7efa03feb5743225211ab98 SHA-256: 534cc65e4c128d4da0d9e6e02a7bdec5856588500a3258761679040303f1bee2

242 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell T1105 Ingress Tool Transfer

The sample contains a VBA macro that executes upon opening the document. This macro utilizes CreateObject to interact with the file system, creating two files with obfuscated content in temporary-like directories: 'gMEpHB:\SKWvYCA\YtZqA.fQoAE' and 'ehLoAm:\PAVZiAGU\jVPHv.fAgoFBYmC'. The ClamAV detection name 'Doc.Downloader.EmotetRed02224-9938637-0' strongly suggests an Emotet family attribution. The macro's behavior of writing obfuscated content to files is consistent with Emotet's typical download and execution chain.

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` `e6cbaf609dbac192156d45839b7ee0912b890e835217bd9fcd38a1509f7c92fb`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10713 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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