Office (OLE) / .DOCX malware analysis — malicious · 47f9aff19305430c

MALICIOUS

Office (OLE) / .DOCX

214.6 KB Created: 2020-09-21 07:35:00 Authoring application: Microsoft Office Word

MD5: ded09eb51ae175879386cdaf3577c4b4 SHA-1: e39bd4d9dcb53efc8db321d0b2713cc6610ce841 SHA-256: 47f9aff19305430cc60a0fbcd715d54e493866e989c73d4e3afff622239ab909

280 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The sample contains VBA macros, including a Document_Open auto-exec macro, which is a common technique for initiating malicious activity upon document opening. The presence of CreateObject and GetObject calls further suggests the execution of arbitrary code. ClamAV detection as 'Doc.Downloader.Generic' indicates the primary function is to download additional malware. No specific family could be identified, but the behavior is consistent with a macro-based downloader.

Heuristics 8

ClamAV: Doc.Downloader.Generic-9764473-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9764473-0
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` `a72546be4835befa0cd5934bb3d180228dbaffbae6f31f70f11c03f05171f092`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19249 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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