Office (OLE) / .DOC malware analysis — malicious · 4c6bf53f5192cfaa

MALICIOUS

Office (OLE) / .DOC

199.1 KB Created: 2020-09-21 15:38:00 Authoring application: Microsoft Office Word

MD5: eab6f7a1517e79d2a72e2cc31bb1a893 SHA-1: 787613d2d830a0ad8c526aca34a3edb904af75e3 SHA-256: 4c6bf53f5192cfaae6652533f1980fc4c40016b9abd84823ebd3165a3d8bd024

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that uses CreateObject and GetObject calls. This indicates the macro is designed to execute code automatically when the document is opened. The ClamAV detection confirms its malicious nature as a downloader. No specific family could be identified, but the techniques used are consistent with a macro-based downloader.

Heuristics 8

ClamAV: Doc.Downloader.Generic-9764611-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9764611-0
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` `5d7bb4a979a8044f246ba5c84f189375b54b56efdae346456cb14e1498096bdd`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19055 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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