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

Static analysis result for SHA-256 288a12450a67a6e2…

MALICIOUS

Office (OLE) / .XLS

226.0 KB Created: 2020-05-16 13:49:11 Authoring application: Microsoft Excel
MD5: a174f61c580bb37bd4297de0826fbcca SHA-1: 3bc732b45e8f43ba83e0ce787550161595677dbc SHA-256: 288a12450a67a6e295128a69511d8347b11c3282ff8b89989fd7d82938eef15a
340 Risk Score

Heuristics 8

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

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
macros.bas
097d88403ad889a1dc108a8c0997629d6100a7bc4a0cc1405e147c1ba05936f1		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 25600 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved artifact contains 2 shell/COM execution token(s). Carved macro source contains an auto-exec entry point and execution/download terms.

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