Xls.Trojan.Escape — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 48238322a402dc81…

MALICIOUS

Office (OLE) / .XLS

18.0 KB Created: 1996-10-14 23:33:28 Authoring application: Microsoft Excel
MD5: 1aea1b96e3b7172cbf39062a7dae6aa0 SHA-1: fe84b1c136dbbdbf3be1c56a7e8be793188c7b80 SHA-256: 48238322a402dc81ebcfb30229eff481849c2a6854cbd9a23eade5c258c34531
180 Risk Score

Malware Insights

Xls.Trojan.Escape · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with multiple signatures, including 'Xls.Trojan.Escape-2' and 'Xls.Trojan.Escape-1' on an extracted artifact. The presence of an Auto_Open VBA macro indicates that malicious code will execute automatically upon opening the spreadsheet. No document body text was available for analysis, but the macro itself is the primary indicator of malicious intent, likely serving as a downloader or initial execution vector.

Heuristics 4

  • ClamAV: Xls.Trojan.Escape-2 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Trojan.Escape-2
  • ClamAV detection on extracted artifact critical EXTRACTED_FILE_CLAMAV
    ClamAV flagged at least one file extracted from inside this sample. Even when the wrapping document carries no AV detection of its own, a hit on the carved artifact is a strong indicator the sample is a delivery vehicle.
  • Auto_Open macro high OLE_VBA_AUTO
    Auto_Open macro
  • VBA macros detected medium OLE_VBA_MACROS
    Document contains VBA macro code

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
b1dc6e799f600e1fe03c12ee5c927d9c20e72385747b65f9e697c96da1cbf849		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1767 bytes
Detection
ClamAV: Xls.Trojan.Escape-1
Obfuscation or payload: unlikely

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