Emotet Office (OLE) / .DOC malware analysis — malicious · b0b8a91b30de7ffc

MALICIOUS

Office (OLE) / .DOC

212.3 KB Created: 2020-12-22 07:17:00 Authoring application: Microsoft Office Word

MD5: a43a9ff04334328bc7b484c0fef39ac1 SHA-1: a8c45824b2840f9ebe0b9346f091757807b5c515 SHA-256: b0b8a91b30de7ffcc47eeffb5e6c8650a8293eb36eb74da831f0fb90391d8597

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

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

The sample is a malicious Office document containing VBA macros, specifically triggering a Document_Open auto-execution macro. The ClamAV detection explicitly identifies it as 'Doc.Downloader.Emotet-10024800-0', strongly suggesting the Emotet family. The macros likely download and execute a second-stage payload, a common Emotet delivery technique. The document body content appears to be obfuscated or corrupted, providing no direct user-facing lure.

Heuristics 7

ClamAV: Doc.Downloader.Emotet-10024800-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Emotet-10024800-0
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` `14cb129666fe7236490ef39627e3d26aa75021ad0921a70c33afa54d1e6f48ea`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16345 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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