Office (OLE) / .DOCX malware analysis — malicious · 9f2498817bf219ff

MALICIOUS

Office (OLE) / .DOCX

175.4 KB Created: 2020-10-30 13:48:00 Authoring application: Microsoft Office Word

MD5: c8af7f8d2ed927eea97421e30d23bae5 SHA-1: f1d4c3a14c67ee0c593a7d756c1ef0de1e22437d SHA-256: 9f2498817bf219ffc1ec8c53efff0d5ce8cc197a4468128ef87354ce80c9b024

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for VBA macros, specifically the Document_Open auto-execution and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro in the 'macros.bas' file, combined with the auto-execution heuristic, suggests the document is designed to run code immediately upon opening. While the specific payload is not detailed, this pattern is typical for malware droppers. The document body content is heavily obfuscated and unreadable.

Heuristics 7

ClamAV: Doc.Malware.Emotet-9785300-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Emotet-9785300-0
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` `6ef446d7bbe59b96b37194ceef7dfc21ebc83ff1edf01838a31098c50a7e733f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17445 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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