Office (OLE) / .DOC malware analysis — malicious · 92c0431e7327330f

MALICIOUS

Office (OLE) / .DOC

156.2 KB Created: 2020-09-22 12:54:00 Authoring application: Microsoft Office Word

MD5: 4aa698e4a99bc86ca4e34e593c0079b7 SHA-1: 73e25776fe16d0f57bfdb3c78180b39c065cdfad SHA-256: 92c0431e7327330fff026adb8b630e0dfbca590877f7782e1c48a68e8ade3cf3

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a Microsoft Office Word document containing VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject calls. This indicates the macro is designed to execute automatically when the document is opened, likely to download and execute a second-stage payload. The ClamAV detection further confirms its malicious nature. No specific family could be identified, but the techniques used are common for macro-based malware delivery.

Heuristics 8

ClamAV: Doc.Malware.Ewtz-9765424-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Ewtz-9765424-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject call
GetObject call high OLE_VBA_GETOBJ

GetObject 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` `63bc7201a259a9f3eac24fc4f9990c61de6bed3eb66abffd8ef4af2ac67d9b62`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	15901 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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