Office (OLE) / .DOCX malware analysis — malicious · 269f22ca4e15ed3b

MALICIOUS

Office (OLE) / .DOCX

152.7 KB Created: 2020-09-22 12:58:00 Authoring application: Microsoft Office Word

MD5: e4d6b41993c8c8b8610b3bc0e38d8857 SHA-1: fdcaafe3f02ead190bc249ee9190d1074cc30286 SHA-256: 269f22ca4e15ed3b911eae317bcac37a0fed2c70d187c552e402751681b6fbbc

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The file contains VBA macros, specifically a Document_Open macro, which is designed to execute automatically when the document is opened. The presence of CreateObject and GetObject calls within the VBA code suggests the macro is likely attempting to download and execute a second-stage payload. The ClamAV detection further confirms its malicious nature. The embedded URL is benign and likely a false positive.

Heuristics 8

ClamAV: Doc.Malware.Ewtz-9765445-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Ewtz-9765445-0
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` `3534612e311adddbcf2e093d61bfa43aa100b688e0fa70d64062312eb6cd9cc9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	17155 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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