Xls.Dropper.Agent-7700211-0 — Office (OLE) / .XLS malware analysis

Static analysis result for SHA-256 fc4f04228a45f4a7…

MALICIOUS

Office (OLE) / .XLS

85.0 KB Created: 2020-04-26 22:05:36 Authoring application: Microsoft Excel
MD5: 07e87c009d8763ae0ced8942344509ba SHA-1: f9f2f5deebd099308f846cc39764634e50c5d20b SHA-256: fc4f04228a45f4a7331944bbc2c92f7c3dbab59818183d518039171bea2596af
240 Risk Score

Malware Insights

Xls.Dropper.Agent-7700211-0 · confidence 95%

MITRE ATT&CK
T1059.005 Visual Basic T1566.002 Spearphishing Attachment

The file is identified as malicious by ClamAV as 'Xls.Dropper.Agent-7700211-0'. Static analysis revealed the presence of VBA macros, specifically a Workbook_Open macro that utilizes CreateObject, indicating an attempt to execute arbitrary code upon opening the spreadsheet. This suggests the file acts as a dropper, likely intended to download and execute a second-stage payload.

Heuristics 6

  • ClamAV: Xls.Dropper.Agent-7700211-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Xls.Dropper.Agent-7700211-0
  • 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
7d83649e2d9b9a26a95c51733f14da191c6a3cacf6abd324f90ccb129aab2b53		 vba-macro oletools.olevba.extract_macros (decoded VBA source) 3938 bytes
Detection
ClamAV: No threats found
Obfuscation or payload: likely
Carved macro source contains an auto-exec entry point and execution/download terms.

Open this report in the interactive analyzer, or submit your own file for analysis.