Office (OLE) / .DOCX malware analysis — malicious · eb7751cd57d85eef

MALICIOUS

Office (OLE) / .DOCX

152.2 KB Created: 2020-09-24 05:47:00 Authoring application: Microsoft Office Word

MD5: d6f319b15ca9a98bddad0e1fb303358a SHA-1: ffa4f2aa404473ee1fb5dd7f05ccb50a578e146f SHA-256: eb7751cd57d85eef7c674547d3a40c0eb9758d9b893fca13e639ac5fbf0fd39f

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The critical ClamAV detection and high-severity heuristics for VBA macros, including an auto-executing Document_Open macro and CreateObject calls, strongly indicate malicious intent. The presence of a VBA macro suggests the document is designed to execute arbitrary code. The Document_Open macro likely initiates the execution of a PowerShell command, as indicated by the 'OLE_VBA_PCODE_AUTOEXEC_EXEC' heuristic, which is a common technique for downloading and executing further stages of malware.

Heuristics 7

ClamAV: Doc.Trojan.Agent-9765752-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Trojan.Agent-9765752-0
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` `b0798fb7450882311ba60b57e039433588cb794c6cc8a10f75d1de73c5c7973a`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19490 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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