Office (OLE) / .DOC malware analysis — malicious · ee9c083f56429267

MALICIOUS

Office (OLE) / .DOC

159.7 KB Created: 2020-09-22 07:35:00 Authoring application: Microsoft Office Word

MD5: 94a6b9305dabfc7acdcb0321fddffeb0 SHA-1: a723d945e28533078966890051426434a562d2cb SHA-256: ee9c083f564292675dc436701b08e7e57bafc7483a2df297a361ccebd2456f95

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that is configured to execute code. Heuristics indicate the use of CreateObject and GetObject, common for malware execution. The presence of the 'macros.bas' file and the ClamAV detection strongly suggest malicious intent, likely to download and execute a second-stage payload.

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` `a112d95a2b3b8361e272604fc368010c1a607c2cd21f88c20a607d79b8ac6136`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	16742 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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