Office (OLE) / .DOC malware analysis — malicious · dcf3000bdcc1eb1c

MALICIOUS

Office (OLE) / .DOC

550.0 KB Created: 2023-07-12 13:29:00 Authoring application: Microsoft Office Word First seen: 2023-08-21

MD5: 6ef2667c08165b47c54f99d63027a79f SHA-1: c7495e2861d6ac7821cec07cb1b36a70afb3ebd5 SHA-256: dcf3000bdcc1eb1c24fdd8feaf057d9c9b1c4fd9af7887361ea8da91dc475aa9

262 Risk Score

Malware Insights

MITRE ATT&CK

T1059.001 PowerShell T1204.002 Malicious File T1059.003 Windows Command Shell

The AutoOpen VBA macro contains a critical Shell() call that executes cmd.exe. This command uses curl to download a file named 'payment.exe' from the reconstructed URL 'http://ps://discorcdn.com/attachments/1126271571837862069/1143072259188195458/payment.exe' into the user's APPDATA directory and then executes it. This indicates a downloader or initial access stage for further malicious activity.

Heuristics 7

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
ClamAV: Doc.Malware.Sagent-10028040-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Malware.Sagent-10028040-0
AutoOpen macro high OLE_VBA_AUTOOPEN

AutoOpen macro
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` `ec08dfad8a7f1c3e06ae33fa9d05b0b8a3e0119047d661d3a442fc758bd5abbf`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	839 bytes

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