Office (OLE) / .DOC malware analysis — malicious · 5fd62f3d6ab13787

MALICIOUS

Office (OLE) / .DOC

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

MD5: 7a215ba01163de9e1a49735a4d6f338a SHA-1: 20f1a74f35b845d6034bae22b3d8133be98bb97e SHA-256: 5fd62f3d6ab1378720249e92793bebd06ebae2390df2fa262b03c78749f9f52b

242 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1203 Exploitation for Client Execution

The sample contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for malware delivery. The heuristics indicate the use of CreateObject and GetObject, suggesting the creation and manipulation of objects to facilitate payload execution. The ClamAV detection further confirms its malicious nature as a downloader. The VBA script is heavily obfuscated, making it difficult to determine the exact download URL or execution method.

Heuristics 7

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.
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

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