Office (OLE) / .DOC malware analysis — malicious · 6435f7a424a01699

MALICIOUS

Office (OLE) / .DOC

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

MD5: 93f542ecfa54f62b8ecf49aaae6099e4 SHA-1: 9832c40b9908632913173f85a43c1e7f6b4ab469 SHA-256: 6435f7a424a0169915984bf53954a12ca14ae98243e1e071e20bc8175036d3c1

162 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The sample is a malicious Office document containing VBA macros. The 'Document_Open' macro is present and appears to be obfuscated, but the presence of 'WinExec' API references suggests it is designed to execute commands. The primary function of the macro is likely to download and execute a secondary payload, a common technique for initial compromise.

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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