Emotet Office (OLE) / .DOC malware analysis — malicious · 9062af099365a0ee

MALICIOUS

Office (OLE) / .DOC

162.9 KB Created: 2021-01-12 15:16:00 Authoring application: Microsoft Office Word

MD5: c499b2e5eb162db6733c0f92e43ef62d SHA-1: 8f4bfae7b3350780bf663704e7d038992628ea35 SHA-256: 9062af099365a0eea3e468661b9ead34f4cfc42f275fd45660d52a889154e96b

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 VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate a downloader. The presence of a VBA macro in the 'macros.bas' artifact, combined with the 'OLE_VBA_PCODE_AUTOEXEC_EXEC' firing, suggests the macro is designed to run automatically upon opening the document. This macro likely downloads and executes a second-stage payload, consistent with Emotet's typical behavior.

Heuristics 7

ClamAV: Doc.Downloader.EmotetRed02224-9938637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.EmotetRed02224-9938637-0
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 3 related findings OLE_VBA_MACROS

Document contains VBA macro code
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.
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 In document text (OLE body)

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `9903c97f82d4c5337bd2323ee89599175ae60759abf4f128ab8c8dd0806f85fd`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	7309 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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