Extracted

• • Target
    stresserka c2.zip
  • Size 91KB
  • SHA256 1a3f5a070f83ca7c0cfe31790b26ed3efe4d0dadf9cc359f30164d9e835da76a
  • MD5 edde66237e31a31e04c268c34eff9e73
  • SHA1 8f1d32a8f6b0b701b46da77c769b66b1b3058a4d
  • SHA512 74fdfbcc79c594a1824e9ebc75b94b27ff85664604daa8146c0516e1ba76df8776ebbf2b200ed205a86949ed0622b509b216d5f5c01ead8c40d823f5a5c1879f
  • SSDEEP 1536:7T9Ha65P6Af3Kd2rmVaPlaiUbmR8nA5Uq/r3NP5fm5GzWTWnkQ+pd8qvuexG+IKW:7T964P3PKdJaPlaiUbmR8A5n/7NP5xnX
  • TLSH
    T18993022AF4545ED3AF52910CEBF9429B23E91DD8C1B05B273B3E726D659FC870122D90
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  1^/10
  behavioral1behavioral2
• • Target
    stresserka c2/doomstresser-c2-ddosiara.exe
  • Size 229KB
  • SHA256 00bc0bbf9e1fc390c44b18e674faed05f452332bae1a96b85bcd74530d34e771
  • MD5 b51e46f32f11955af9a0fb257ce29309
  • SHA1 bc580c4b55d4b6abe917b0563d5db9d0ec94df8a
  • SHA512 4cf783af8f401423f5aec6fee84ffb9e6635ba0dbb792c0b67917c9053030ad3b35109e4ec9f5bf352da30cddffb06f98de6b9521536ce95cbf011b6d51030a5
  • SSDEEP 6144:tloZMLrIkd8g+EtXHkv/iD4pKI5EKtFu8r20VJgdSb8e1m0Ei:voZ0L+EP8pKI5EKtFu8r20VJgA3
  • TLSH
    T1AE346C4937B8CB17E25F8BBED5B1148F87B1F143E90AF78E0C8895E82411742E949E57
  • MD5 SHA1 SHA512 SSDEEP TLSH

  Score

  10^/10

  defense_evasiondiscoveryexecutionumbralspywarestealer

  • Detects Umbral payload

  • Family: Umbral

    Umbral stealer is an open-source modular stealer written in C#.

    stealerumbral

  • Command and Scripting Interpreter: PowerShell

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    execution

  • Disables one or more Microsoft Defender components

    Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.

    defense_evasion

  • Drops file in Drivers directory

  • Disables automatic submission of suspicious files to Microsoft by Windows Defender

    Uses the Powershell Set-MpPreference cmdlet to prevent Windows Defender from automatically sending files to Microsoft for analysis.

    defense_evasion

  • Reads user/profile data of web browsers

    Infostealers often target stored browser data, which can include saved credentials etc.

    spywarestealer

  • Contacts third-party web service commonly abused for C2

    Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

  • Looks up external IP address via web service

    Uses a legitimate IP lookup service to find the infected system's external IP.

    discovery
  behavioral3behavioral4