Ursnif — Office (OOXML) / .XLSM malware analysis

Static analysis result for SHA-256 fc6574e305156f3e…

MALICIOUS

Office (OOXML) / .XLSM

254.0 KB Created: 2006-09-16 00:00:00 UTC Authoring application: Microsoft Excel 15.0300
MD5: b445e932bd1242b74da3f29ee82ba768 SHA-1: 87981e70c22c5f38323db4918cad489cae959d68 SHA-256: fc6574e305156f3ef85351112b1c8567972a43b096921b1b6112dfb94d3fb856
100 Risk Score

Malware Insights

Ursnif · confidence 95%

MITRE ATT&CK
T1218.010 System Binary Proxy Execution: Regsvr32 T1059.001 Command and Scripting Interpreter: PowerShell

The file is an XLSM document containing obfuscated text that includes a command to execute 'regsvr32' with a URL pointing to a DLL. This indicates a likely dropper functionality, consistent with the Ursnif family identified by ClamAV. The embedded URL is the primary indicator for the second-stage payload.

Heuristics 3

  • ClamAV: Doc.Dropper.UrsnifIT1220-9803735-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Doc.Dropper.UrsnifIT1220-9803735-0
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://premiumstatics.co/con3cti0n.dll

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