Office (OLE) / .DOCX malware analysis — malicious · c4699bc83e2c480a

MALICIOUS

Office (OLE) / .DOCX

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

MD5: 97308be55f9e0ba6bd95c701b8887295 SHA-1: 0a9514bcd5aac8f95a959fa875c8d722dc62764e SHA-256: c4699bc83e2c480aa53af341f4b67b5dfb27cb5d28fb09a7619b55689b686ae3

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious DOCX file containing VBA macros. The 'Document_Open' macro is present and configured to execute automatically upon opening the document. This macro utilizes 'CreateObject' and 'GetObject' calls, indicating an attempt to perform actions beyond typical document content. ClamAV detection confirms its malicious nature. The primary attack vector is likely a phishing email attachment.

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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