Office (OLE) / .DOC malware analysis — malicious · fc56c432d7ac6dbb

MALICIOUS

Office (OLE) / .DOC

86.6 KB Created: 2020-12-29 19:06:00 Authoring application: Microsoft Office Word

MD5: 88d16bc5de27f7309ab559f7625fbe57 SHA-1: b59820c7d89578af64fb5ed32202a7d6c2abc73d SHA-256: fc56c432d7ac6dbba502bfbabdffe52de8c633673493b2b9b6277eeb50fa319a

180 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file contains VBA macros, specifically a Document_Open macro designed to execute automatically. This macro utilizes CreateObject, a common technique for launching malicious payloads. The presence of a 'macros.bas' artifact further confirms the macro-based nature of this threat. The document body is heavily obfuscated and does not provide clear user-facing content, suggesting its primary purpose is to deliver the malicious macro.

Heuristics 6

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` `3e1fbb4a2f2cb4e00d9509545ac732e1282394563ab4578045877b0464a8aa28`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	8279 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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