Office (OLE) / .DOCX malware analysis — malicious · 1f937adf20647976

MALICIOUS

Office (OLE) / .DOCX

155.9 KB Created: 2020-09-14 19:47:00 Authoring application: Microsoft Office Word

MD5: 6e86db62bc14cdd4bf136cf0a45b2f66 SHA-1: 8d4170cfe240ae1a50939b86e939565a884a1816 SHA-256: 1f937adf2064797622d0c208d379a6afb1be8c34b826068ea42f6433ad2766e7

240 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 execute automatically upon opening. High-confidence heuristics indicate the use of 'CreateObject' and VBA p-code auto-execution, suggesting the macro attempts to run code. The presence of 'macros.bas' further supports the macro execution. While no specific URLs or further payloads were directly extracted, the setup strongly implies a downloader or initial execution stage for a more complex attack.

Heuristics 7

ClamAV: Doc.Malware.Generic-9760307-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Generic-9760307-0
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` `0b6180fea2f2eb783f5bda16a3b3f9aadc8aaa21f7b3f16e95bf573cb2bafb66`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18514 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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