Office (OLE) / .DOCX malware analysis — malicious · 8723e64c68be3ce6

MALICIOUS

Office (OLE) / .DOCX

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

MD5: 51fb1ceb0955730a64c0090241077458 SHA-1: 2b6696904d6e2a02c641be7081567b1c6e19f351 SHA-256: 8723e64c68be3ce648bd220682c41b6181cc4de4ec62e97eef68bb2f17bcc0d0

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 a Document_Open VBA macro. This macro utilizes CreateObject and p-code execution, indicating it is designed to run automatically upon opening. The presence of the 'macros.bas' artifact and the critical ClamAV detection strongly suggest malicious intent, likely to download and execute a second-stage payload. The document body content is heavily corrupted and unreadable, providing no further context.

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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