Office (OLE) / .DOCX malware analysis — malicious · 49d748e6ee7deafc

MALICIOUS

Office (OLE) / .DOCX

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

MD5: 815b2c71bf5e7df4e03f760c6b70ac9b SHA-1: f6eee80ca940a6b80ebcb37c302305bb9b4587c4 SHA-256: 49d748e6ee7deafcab1482e5f85500d1b5ac91640cd12f9a014286b0563e735f

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open macro that is auto-executed upon opening. Heuristics indicate the use of CreateObject and GetObject, common for downloading and executing payloads. The ClamAV detection further confirms its malicious nature. No specific URLs or scripts were extracted for further analysis, but the presence of auto-executing VBA macros strongly suggests a downloader or initial execution stage.

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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