Office (OLE) / .DOCX malware analysis — malicious · fbd4657d791ee13c

MALICIOUS

Office (OLE) / .DOCX

158.8 KB Created: 2020-09-22 07:35:00 Authoring application: Microsoft Office Word

MD5: 94e863a8fd866b6a2de840ec7384f174 SHA-1: 0afe067caf7974423561c3ce0aa11e835407b9f3 SHA-256: fbd4657d791ee13cbdbdf2360d65bf1cfde6851a8111c43ab4b1c3f2fa02c6f7

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a malicious VBA macro, specifically a Document_Open macro that utilizes CreateObject and GetObject calls. This indicates the macro is designed to execute arbitrary code upon opening the document. ClamAV detection further confirms its malicious nature. The macro likely downloads and executes a second-stage payload, though the specific URL or payload is not directly extractable from the provided evidence.

Heuristics 8

ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `a112d95a2b3b8361e272604fc368010c1a607c2cd21f88c20a607d79b8ac6136`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16742 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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