Office (OLE) / .DOCX malware analysis — malicious · 59b07ee573d9567f

MALICIOUS

Office (OLE) / .DOCX

179.1 KB Created: 2020-09-18 08:59:00 Authoring application: Microsoft Office Word

MD5: 2abdfeac441a4e2a53d331b7dedac95e SHA-1: c01d09c0daf42bef0af9d7a45624a85b22d0cdec SHA-256: 59b07ee573d9567fe99ebe983b0641353a94c1584dbd8a330ce9a1b1ead621df

240 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 uses CreateObject. This indicates an automated execution of malicious code upon opening the document. The ClamAV detection as 'Doc.Downloader.Generic' strongly suggests the macro's purpose is to download and execute a second-stage payload. No specific family could be identified, but the behavior is consistent with a downloader.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9763419-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9763419-0
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` `2cacffa870bc163e0d80063dbad890b2628b581c624e40730ba57a6c44f2b3d2`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	20834 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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