Office (OLE) / .DOC malware analysis — malicious · 4f2d668a9f829aad

MALICIOUS

Office (OLE) / .DOC

213.5 KB Created: 2020-09-21 12:09:00 Authoring application: Microsoft Office Word

MD5: 486338ed08149e89de48c45e9489ce9f SHA-1: 0c0f8b3ac77997f9467c8b5daa07ef9a22608c9d SHA-256: 4f2d668a9f829aad2f91c6bca116c63f722f8df5925f994ce30ac6e2b2c5b4af

280 Risk Score

Malware Insights

MITRE ATT&CK

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

The file is a Microsoft Office document containing VBA macros, specifically a Document_Open macro that utilizes CreateObject and GetObject calls. This indicates an attempt to execute code upon opening. The ClamAV detection as 'Doc.Downloader.Generic' strongly suggests the macro's purpose is to download and execute a second-stage payload. While the embedded URL is benign, the heuristic firings and the ClamAV signature are sufficient to infer malicious downloader behavior.

Heuristics 8

ClamAV: Doc.Downloader.Generic-9764508-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9764508-0
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` `cea30dbaa44bcaf57fbcd15c35be69cfffbad74d3b69c3addc059acf5ad797f9`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19026 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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