Office (OLE) / .DOC malware analysis — malicious · 17cfb90deb531e20

MALICIOUS

Office (OLE) / .DOC

191.0 KB Created: 2023-09-14 01:44:00 Authoring application: Microsoft Office Word First seen: 2023-09-14

MD5: 68297123bc1ddbbd9336aa121a9dd534 SHA-1: 2d8016319edb893e0ae600ba8c89f00a30466967 SHA-256: 17cfb90deb531e2068d99e671423d8d1bcf8f06a0e2666f0108ca8e8b706dd1b

242 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1059.003 Windows Command Shell T1105 Ingress Tool Transfer

The Document_Open VBA macro is designed to execute a command. It reconstructs the command to download a file from 'https://transf.sh/gt/gj04sqKk7O/boat.exe' and save it as 'C:\Users\Public\dx5ys.exe', then executes the downloaded file. This indicates an attempt to download and run a second-stage payload.

Heuristics 7

ClamAV: Doc.Malware.Valyria-10008067-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Valyria-10008067-0
Document_Open macro high OLE_VBA_DOCOPEN

Document_Open macro
GetObject call high OLE_VBA_GETOBJ

GetObject call
cmd.exe reference in VBA high OLE_VBA_CMD

cmd.exe reference in VBA
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` `3280b99d1103c1673508926fd54aac03e4407981236e2468050944f967f8d057`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	923 bytes

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