Emotet Office (OLE) / .DOC malware analysis — malicious · 8afe1388f2757e76

MALICIOUS

Office (OLE) / .DOC

189.5 KB Created: 2020-10-21 08:44:00 Authoring application: Microsoft Office Word

MD5: 3e4a222212dd7d7dc81b0886c5a952c9 SHA-1: 600a99ebb1558756500370c77ed6eadb051ae447 SHA-256: 8afe1388f2757e768a8714f2f6543de0464e092f33de3b865b11fa6fcdf38cbf

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC strongly indicate malicious VBA macro execution. The presence of a Document_Open macro, coupled with CreateObject calls, suggests the script is designed to download and execute a secondary payload. The ClamAV signature 'Doc.Dropper.EmotetiBlueUpdate1020-9780531-0' further supports the Emotet family attribution and its dropper functionality.

Heuristics 7

ClamAV: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.EmotetiBlueUpdate1020-9780531-0
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` `1495f7c7ced0d5d67a50de030db1d404fcece38568f93b06e33d3100a17ee340`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20761 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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