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

Static analysis result for SHA-256 f00d3b0c89bace12…

MALICIOUS

Office (OLE) / .XLS

32.5 KB Created: 2015-06-05 18:17:20 Authoring application: Microsoft Excel First seen: 2022-08-23
MD5: 7253493378e17dbb9ec4e29683617871 SHA-1: 0b40f73e168a669f31f636542041bcca3162441e SHA-256: f00d3b0c89bace124b3efa0b2a3744a17d68da1a24e0ffe3d2b2e8e7da60aac7
100 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell T1059.005 Visual Basic

The VBA macro contains obfuscated PowerShell code that attempts to download a script from 'http://kt.denik//:ptth' and save it as 'notepad.vbs' in the temporary directory. The script then executes this downloaded payload using PowerShell. The PowerShell command is constructed by concatenating strings, including a URL and a filename, and is designed to run hidden.

Heuristics 3

  • Reference to PowerShell high SC_STR_POWERSHELL
    Reference to PowerShell
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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
64646b5629558e46994e2bd96af13902676de077c1408f983c405e9d8ba22e17		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 1377 bytes

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