Office (OLE) / .DOCX malware analysis — malicious · a783eae8dc2e2d6c

MALICIOUS

Office (OLE) / .DOCX

210.1 KB Created: 2020-09-21 19:39:00 Authoring application: Microsoft Office Word

MD5: 95726dabe65e22a8fc5b1f688f9b6961 SHA-1: 75fec05182f1e410207bd4034188a0d7c1a2c558 SHA-256: a783eae8dc2e2d6cf06971b0229c70d3b8879a725db369f97d35c6c3b48f59f4

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a Microsoft Office document containing VBA macros. The 'Document_Open' macro is present and configured to auto-execute, indicating an attempt to run malicious code upon opening. High-confidence heuristics suggest the use of CreateObject and GetObject, common for downloading and executing payloads. The ClamAV detection 'Doc.Downloader.Generic' further supports this. No specific URLs or executable content were directly extracted, but the presence of auto-executing VBA macros strongly suggests a downloader pattern.

Heuristics 8

ClamAV: Doc.Downloader.Generic-9764637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9764637-0
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` `4078e425aac0675c0d67424bcd647792033cab09565190ea70103f9b942a9f1f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19109 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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