Office (OLE) / .DOCX malware analysis — malicious · 0400334c3a2a7e2d

MALICIOUS

Office (OLE) / .DOCX

209.7 KB Created: 2020-09-21 19:39:00 Authoring application: Microsoft Office Word

MD5: e2b34d1b752481c137f67ae06495ec21 SHA-1: d04d2c0dbb241d143d23726a106f32852ddd66c5 SHA-256: 0400334c3a2a7e2dbc243a57e54e084c789afd40e5742a3deb2f991d9574ea7a

242 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file contains VBA macros, including a Document_Open auto-execution macro, which is a common technique for malware delivery. The presence of CreateObject and GetObject calls suggests the macro is attempting to instantiate objects to perform malicious actions, likely downloading and executing a second-stage payload. The ClamAV detection ID 'Doc.Downloader.Generic-9764637-0' further supports this assessment.

Heuristics 7

ClamAV: Doc.Downloader.Generic-9764637-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Downloader.Generic-9764637-0
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` `4078e425aac0675c0d67424bcd647792033cab09565190ea70103f9b942a9f1f`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	19109 bytes

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