Office (OLE) / .DOC malware analysis — malicious · 96882b077a607f34

MALICIOUS

Office (OLE) / .DOC

143.5 KB Created: 2025-01-07 08:57:00 Authoring application: Microsoft Office Word

MD5: 3db6baf168cecc916012a59b6530175a SHA-1: 7d74c680b09f982271a50483ce350a5b3d9a0996 SHA-256: 96882b077a607f34cd963461341d728982e2075ffd4891f1b91e915da904cfe0

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample is a Microsoft Word document containing VBA macros, specifically an AutoOpen macro, which is a common technique for initial execution. The critical OLE_VBA_SHELL heuristic indicates the use of the Shell() function, likely to download and execute a secondary payload. The presence of the 'macros.bas' artifact further confirms the macro-based nature of the attack. The document body is heavily corrupted and unreadable, providing no contextual clues.

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` `e4ca32bb601837dd18793c680a4309a1cd89494672d1450a43ef8109bb952088`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1770 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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