Office (OLE) / .DOC malware analysis — malicious · a5a500e1d4ffc9ea

MALICIOUS

Office (OLE) / .DOC

220.0 KB Created: 2020-04-27 09:40:00 Authoring application: Microsoft Office Word

MD5: 58a739940e3190be8dc6b80ec9de6a00 SHA-1: 133c9a493227eea55a7ee7bba9b64932c6fcced7 SHA-256: a5a500e1d4ffc9ead701b1a660879e63570624fa66425d67af8cc65349d3ef69

160 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.001 PowerShell

The sample is a malicious OLE document containing a VBA macro. The presence of a 'Document_Open' macro and a reference to the WinExec API strongly suggests that the macro is designed to execute arbitrary code. The ClamAV detection ID 'Doc.Malware.Generic-8011099-0' further confirms its malicious nature. The macro likely downloads and executes a second-stage payload.

Heuristics 5

ClamAV: Doc.Malware.Generic-8011099-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Generic-8011099-0
Reference to WinExec API high SC_STR_WINEXEC

Reference to WinExec API
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
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` `6570e3eab448589fb960a3251a8b7aefec97f0eb138b9f2081cd9189bbbdfa28`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	31163 bytes

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