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

Static analysis result for SHA-256 595e795d2c8aeafe…

MALICIOUS

Office (OLE) / .XLS

452.0 KB Created: 2020-10-07 00:57:34
MD5: c444d11c01517f1ec52b63a6484bd512 SHA-1: 17784bbb9a63e836ee2c1d05cc26b773ad51a72d SHA-256: 595e795d2c8aeafe3af742ef4f2a404546d55ae58d966d88c3d2880074aab591
140 Risk Score

Malware Insights

MITRE ATT&CK
T1059.005 Visual Basic T1059.003 Windows Command Shell

The Workbook_Open macro is designed to execute a PowerShell command. This command downloads a file from http://18.196.157.86/T/3041000.jpg and saves it as C:\Users\Public\Pictures\xhnznbbfb.exe, then executes the saved file. This indicates a downloader or droppper functionality.

Heuristics 4

  • Workbook_Open macro high OLE_VBA_WBOPEN
    Workbook_Open macro
  • CreateObject call high OLE_VBA_CREATEOBJ
    CreateObject call
  • 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
dcbe32b346a02b1cf0ea63989fd90cc157461f2c2d74fb431bf353dd25f6badc
vba-macro oletools.olevba.extract_macros (decoded VBA source) 1259 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.