Office (OLE) / .XLS malware analysis — malicious · a7733295d854f841

MALICIOUS

Office (OLE) / .XLS

209.0 KB Created: 2006-09-16 00:00:00 Authoring application: Microsoft Excel First seen: 2026-04-22

MD5: 607126717e862a67cb3777e918b62584 SHA-1: cefb7a6b24cfb769443835a7b000a62c153cfc5d SHA-256: a7733295d854f841b1276442181cb58adaa23ddc6ed4ed2bb9bb785fcf222f06

402 Risk Score

Malware Insights

MITRE ATT&CK

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

The VBA macro within the Excel file contains a Workbook_Open subroutine that is triggered automatically when the file is opened. This subroutine uses WScript.Shell to download a file from the URL "http://www.teslasuit.to/newuu.exe" and saves it locally as "test0.exe". It then executes the downloaded file, indicating a downloader or dropper functionality. The ClamAV detection also supports the malicious nature of the file.

Heuristics 10

Shell() call in VBA critical OLE_VBA_SHELL

Shell() call in VBA
WScript.Shell usage critical OLE_VBA_WSCRIPT

WScript.Shell usage
ClamAV: Doc.Dropper.Agent-6412232-1 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Doc.Dropper.Agent-6412232-1
Reference to Windows Script Host high SC_STR_WSCRIPT

Reference to Windows Script Host
Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
CreateObject call high OLE_VBA_CREATEOBJ

CreateObject 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.
Suspicious extracted artifact high EXTRACTED_FILE_STATIC_TRIAGE

One or more files extracted from inside this sample matched static suspicious-content checks such as script obfuscation, encoded payload blobs, packed data, or execution/download terms.
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://www.teslasuit.to/newuu.exe

Extracted artifacts 1

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`macros.bas` `3f3a567f96581be7105a0cc348b55f0b021867782e6a6d80e636c3a8674f9a64`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	1681 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 1 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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