Office (OLE) / .DOC malware analysis — malicious · ce3681ec2e62af9f

MALICIOUS

Office (OLE) / .DOC

143.5 KB Created: 2025-01-16 00:29:00 Authoring application: Microsoft Office Word

MD5: 059f7753a76e86c8ed56f480041d631f SHA-1: c356187bee23b8930e82ba2cea112873b39567d4 SHA-256: ce3681ec2e62af9f0231b1a32a7319766d8193d0ff86c69691176f4cd404f129

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a Microsoft Office document containing VBA macros. The presence of an AutoOpen macro and a Shell() call indicates that the macros are designed to execute automatically upon opening the document. The heuristic 'OLE_VBA_PCODE_AUTOEXEC_EXEC' specifically points to VBA p-code auto-execution with execution tokens, further supporting the malicious intent. The extracted 'macros.bas' file is the source of these macros. The primary function appears to be the execution of arbitrary code, likely for downloading and executing a secondary payload.

Heuristics 7

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen 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` `8142ca089528b30f32a8ab7d811eef06479a99a684e731305be2fa5da7dcf0a3`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1769 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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