Office (OLE) / .XLS malware analysis — malicious · 53d8470b626ead7c

MALICIOUS

Office (OLE) / .XLS

192.0 KB Created: 1999-12-24 16:36:33 Authoring application: Microsoft Excel

MD5: 4a0ee9654d12eb85bc158b3e01826dcf SHA-1: fff3c5fcf71a40a8eb28d7ceb7684230fccf7c49 SHA-256: 53d8470b626ead7cbbd374f08563de22a2c72c2189c7ab8851f0c60cb5391b61

120 Risk Score

Malware Insights

MITRE ATT&CK

T1059.005 Visual Basic T1204.002 Malicious File

The file contains both XLM and VBA macros, with a high-confidence Workbook_Open VBA macro detected. This macro is designed to download and execute a second-stage payload from the embedded URL http://www.24toto.com/66.exe. The VBA macro also exhibits string obfuscation, further indicating malicious intent.

Heuristics 5

Workbook_Open macro high OLE_VBA_WBOPEN

Workbook_Open macro
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.
Excel 4.0 (XLM) macro sheet present medium OLE_XLM_AUTOOPEN

Workbook contains an Excel 4.0 macro sheet sub-stream — XLM is rarely seen in modern legitimate workbooks and was a major Office malware vector during 2020-2022.
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.24toto.com/66.exe�

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`xlm_macros.txt` `1e2146545f848881b6974ace600b15cc6a57bb6c0dbcce63506efaed6758b4fd`	xlm-macro	oletools.olevba.extract_all_macros (XLM macro listing)	17500 bytes
`macros.bas` `b4f4a1e73de849ddefe5da353517feab043c957a6379931c3e165a68626c3ef3`	vba-macro	oletools.olevba.extract_macros (decoded VBA source)	27433 bytes
Detection ClamAV: No threats found Obfuscation or payload: likely Carved artifact contains 30 Chr/ChrW string-construction calls.

Open this report in the interactive analyzer, or submit your own file for analysis.