Malicious Office (OLE) / .EXE — malware analysis report

Static analysis result for SHA-256 9460debad27b313f…

MALICIOUS

Office (OLE) / .EXE

92.0 KB Created: 1980-01-04 07:01:16 Authoring application: Microsoft Excel
MD5: 64950932da4060274bcc2ba8fb394ba6 SHA-1: e87493848e0a0a49a6c95d1e5ca5a3f6300c5465 SHA-256: 9460debad27b313fea41d781a8f92a385083a51d21561424479d19cfdadf62c2
180 Risk Score

Malware Insights

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

The file is an OLE executable containing VBA macros, specifically an Auto_Open macro, which is a common technique for initiating malicious execution. ClamAV identifies this as Xls.Trojan.Laroux-28, indicating a known malicious pattern. The presence of the Auto_Open macro suggests the intent is to automatically run malicious code when the document is opened, likely leading to further stages of infection.

Heuristics 4

  • ClamAV: Xls.Trojan.Laroux-28 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Trojan.Laroux-28
  • 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
f62267d7aef348a5af9b51ee24ce2cc69f69269ff718ed312a917a7da16d1ff7		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 2115 bytes
Detection
ClamAV: Xls.Trojan.Laroux-28
Obfuscation or payload: unlikely

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