Office (OLE) / .DOC malware analysis — malicious · 213e74c2993af483

MALICIOUS

Office (OLE) / .DOC

157.3 KB Created: 2020-09-17 14:55:00 Authoring application: Microsoft Office Word

MD5: b473395928dcd7f0f8d4fa5c0c016dbb SHA-1: 6b04a3ad0787ca7903a77ab1b70c85832cbfe718 SHA-256: 213e74c2993af4834561e2249f92a3145746b5c843c10465a3f656c537b5b8cb

240 Risk Score

Malware Insights

MITRE ATT&CK

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

The sample contains a critical ClamAV detection for a downloader. High-severity heuristics indicate the presence of VBA macros, specifically a Document_Open auto-execution macro that uses CreateObject. This suggests the macro is designed to run automatically upon opening the document, likely to download and execute a second-stage payload. No specific family could be identified, but the behavior is consistent with a generic downloader.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763036-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763036-0
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` `97ec197218971ae0b9fcbf923885a92d2933b66cc58f741a5aeef561b0dd1aea`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19831 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 20 long base64-like blob(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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