Office (OLE) / .DOC malware analysis — malicious · 8793b504bfc40cbe

MALICIOUS

Office (OLE) / .DOC

301.1 KB Created: 2020-09-18 07:03:00 Authoring application: Microsoft Office Word

MD5: f7df7dda5cf9ccca6d74e0dc2def83d7 SHA-1: 6dd570b67525ef4dcec47f4f3c2aa3b93d38098e SHA-256: 8793b504bfc40cbe3cffb9b2c37701c66cc91efb7337f2a54d1bd08f929699cb

240 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell T1204.002 Malicious File

The file is a malicious Microsoft Office document containing a Document_Open VBA macro. This macro utilizes CreateObject to execute arbitrary code, as indicated by the OLE_VBA_PCODE_AUTOEXEC_EXEC heuristic. The ClamAV detection name 'Doc.Downloader.Generic-9763222-0' strongly suggests the macro's purpose is to download and execute a secondary payload. No specific family could be identified, but the behavior is consistent with a downloader.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763222-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763222-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject 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` `6e04e06a1bc4d385f00617f91789eb9e995745c804dc390fff64c73aaf53d49b`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20925 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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