Office (OLE) / .DOCX malware analysis — malicious · d67bac7dbe75fbb0

MALICIOUS

Office (OLE) / .DOCX

267.5 KB Created: 2020-10-28 13:40:00 Authoring application: Microsoft Office Word

MD5: 6d611945bfe287e731d8f18f1a441214 SHA-1: 52277c2cdb4e6d9815ccf76d3062d200235543b1 SHA-256: d67bac7dbe75fbb08f68108c847dd12d7061acf4ffb725a8bb61e0fe86f9432b

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment T1059.001 PowerShell

The file is a Microsoft Office document containing a Document_Open VBA macro that utilizes CreateObject, indicating it is designed to execute code automatically. ClamAV detection confirms this as a downloader. The macro's auto-execution and the presence of VBA code strongly suggest a malicious intent to download and execute a secondary payload.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9785156-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9785156-0
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` `04f0b14197f396c9b03f7b934599b1b01d62a486cd3090375b867094895917c9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	18531 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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