Emotet Office (OLE) / .DOC malware analysis — malicious · bf82d80c6784207b

MALICIOUS

Office (OLE) / .DOC

188.5 KB Created: 2020-10-21 06:35:00 Authoring application: Microsoft Office Word

MD5: af0604b62078f07d707d558b4303d7eb SHA-1: 25738e082cd92bfec2f585f50bc0a0320beb58e6 SHA-256: bf82d80c6784207b3b2b71c4c33d4e0a0866908ebdb14a571e6f36eb7b616c60

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File T1105 Ingress Tool Transfer

The critical ClamAV detection and high-severity heuristics for OLE_VBA_MACROS, OLE_VBA_DOCOPEN, OLE_VBA_CREATEOBJ, and OLE_VBA_PCODE_AUTOEXEC_EXEC indicate that this document contains a malicious VBA macro designed to execute automatically upon opening. The macro is likely responsible for downloading and executing a second-stage payload, as suggested by the 'Dropper' classification in the ClamAV detection. The presence of the 'macros.bas' artifact further supports the macro-based execution.

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` `f96fcb8cc4916d97c835c4422355f14f0c9757157ab8f3fd4f7e89ea3c4a99e6`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20702 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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