Emotet Office (OLE) / .DOCX malware analysis — malicious · f685aa8cf1ff2ed1

MALICIOUS

Office (OLE) / .DOCX

151.6 KB Created: 2020-10-01 07:06:00 Authoring application: Microsoft Office Word

MD5: 1612964804a8d1df571f7c9ede085b38 SHA-1: 5613b33e9d9650bddea44f901b95ac3a4ac0461b SHA-256: f685aa8cf1ff2ed10ad6a26aedef21430e2e232ba17e79dc31c4ab50655279c9

240 Risk Score

Malware Insights

Emotet · confidence 95%

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with the signature 'Doc.Malware.Emotet-9770156-0', strongly suggesting the Emotet family. High-severity heuristics indicate the presence of VBA macros, specifically a 'Document_Open' macro that uses 'CreateObject' for execution. This points to a macro-based execution of malicious code, typical for Emotet's initial infection vector. The obfuscated document body content does not provide further clues on the specific lure, but the technical indicators are clear.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9770156-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9770156-0
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` `edcbc228f949e002f32423fcc2aae89e10357cf04ecc19d5df06e1df6cb28a25`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	10406 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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