Office (OLE) / .DOCX malware analysis — malicious · 35999c8f653e6bbd

MALICIOUS

Office (OLE) / .DOCX

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

MD5: f96c69eec1537ce4a702c13eb87f3da7 SHA-1: 03784a9135d347600de3c00d568a1288ccfa1b99 SHA-256: 35999c8f653e6bbd10bf305fb984cc3497ffdf8b26af7b53f83dbf7e385f737f

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 a VBA macro. The 'Document_Open' macro is present and uses 'CreateObject', indicating it's designed to execute code upon opening. The presence of 'macros.bas' and the ClamAV detection strongly suggest malicious intent, likely to download and execute a second-stage payload. The document body was unreadable, but the VBA heuristics are sufficient for this assessment.

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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