Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/09/2024, 02:09

General

  • Target
    b4346702b4b5029cbd627b5df724550f8b783ba22876e5070dadc0ed5c214df2.msi
  • Size 23.0MB
  • Sample240910-clb95atcra
  • SHA256 b4346702b4b5029cbd627b5df724550f8b783ba22876e5070dadc0ed5c214df2
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Rhadamanthys

    Rhadamanthys is an info stealer written in C++ first seen in August 2022.

  • Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
  • Blocklisted process makes network request 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 9 IoCs
  • Loads dropped DLL 1 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 3 IoCs
  • Modifies registry class 23 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\sihost.exe
    sihost.exe
    1⤵
      PID:2660
      • C:\Windows\SysWOW64\openwith.exe
        "C:\Windows\system32\openwith.exe"
        2⤵
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:4612
    • C:\Windows\system32\msiexec.exe
      msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\b4346702b4b5029cbd627b5df724550f8b783ba22876e5070dadc0ed5c214df2.msi
      1⤵
      • Blocklisted process makes network request
      • Enumerates connected drives
      • Event Triggered Execution: Installer Packages
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      PID:2000
    • C:\Windows\system32\msiexec.exe
      C:\Windows\system32\msiexec.exe /V
      1⤵
      • Enumerates connected drives
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1412
      • C:\Windows\system32\srtasks.exe
        C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:3944
      • C:\Windows\syswow64\MsiExec.exe
        C:\Windows\syswow64\MsiExec.exe -Embedding 02D7335E8139F307B8C7F28636C5EF93
        2⤵
        • Suspicious use of NtCreateUserProcessOtherParentProcess
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:3756
        • C:\Windows\SysWOW64\msiexec.exe
          "C:\Windows\System32\msiexec.exe" /i "C:\Users\Admin\AppData\Local\Temp\dXNlcg==.msi"
          3⤵
          • Enumerates connected drives
          • System Location Discovery: System Language Discovery
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of FindShellTrayWindow
          PID:4832
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3756 -s 1168
          3⤵
          • Program crash
          PID:3352
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:4408
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3756 -ip 3756
      1⤵
        PID:1888

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            e57c871.rbs

            • Path C:\Config.Msi\e57c871.rbs
            • Size 7KB
            • SHA256 868c844027b56fc2e903e0c153bd42af90487f3aec3e7884988b5d00a63e8786
            • MD5 SHA1 SHA512 SSDEEP

            248DDD9FCF61002E219645695E3FFC98_980C1CDB5B8D38EE1A4189343051F5EF

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\248DDD9FCF61002E219645695E3FFC98_980C1CDB5B8D38EE1A4189343051F5EF
            • Size 751B
            • SHA256 82b99fe8316daf91f097a310b2aaa96a7d7c72fd11f51b55820d01a261b24d0d
            • MD5 SHA1 SHA512

            FE17BEC2A573BC9AE36869D0274FFA19_6DA81F04C5F9EAD2CD0268808FCE61E1

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\FE17BEC2A573BC9AE36869D0274FFA19_6DA81F04C5F9EAD2CD0268808FCE61E1
            • Size 727B
            • SHA256 2b08ecf53bb8b6c430659926148f896102dc80b5f38b0ec5efe122199659651c
            • MD5 SHA1 SHA512

            248DDD9FCF61002E219645695E3FFC98_980C1CDB5B8D38EE1A4189343051F5EF

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\248DDD9FCF61002E219645695E3FFC98_980C1CDB5B8D38EE1A4189343051F5EF
            • Size 478B
            • SHA256 734ce55b687f44cb856280376381d654666510ae369e1de990cdacb4e95f69c4
            • MD5 SHA1 SHA512

            FE17BEC2A573BC9AE36869D0274FFA19_6DA81F04C5F9EAD2CD0268808FCE61E1

            • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\FE17BEC2A573BC9AE36869D0274FFA19_6DA81F04C5F9EAD2CD0268808FCE61E1
            • Size 478B
            • SHA256 db6759223f918e55da3b9bf245ee1c097bf626f88053f3748adb6fa51dba8397
            • MD5 SHA1 SHA512

            dXNlcg==.msi

            • Path C:\Users\Admin\AppData\Local\Temp\dXNlcg==.msi
            • Size 22.3MB
            • SHA256 96811ea4f9266ba8ee5c758c146fbc84f3cfe5ec4c5c966b5885e11b5f696f74
            • MD5 SHA1 SHA512 SSDEEP

            MSIC95B.tmp

            • Path C:\Windows\Installer\MSIC95B.tmp
            • Size 193KB
            • SHA256 dbe502732e67c80c03fba12a885f3c68023eeff31fcde8170f4733d8261b540e
            • MD5 SHA1 SHA512 SSDEEP

            metadata-2

            • Path \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2
            • Size 23.7MB
            • SHA256 083e014bfdcd9df407daee712db097c2dc8e53f081da6612e51e4126191fbd36
            • MD5 SHA1 SHA512 SSDEEP

            {2259096a-09ab-4916-8fe2-33584f0b4380}_OnDiskSnapshotProp

            • Path \??\Volume{f1c9ec80-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{2259096a-09ab-4916-8fe2-33584f0b4380}_OnDiskSnapshotProp
            • Size 6KB
            • SHA256 658ecef8a8f442d678b63ba2d6d03a6fffca2fb84f6e63b1a0110585c379e609
            • MD5 SHA1 SHA512 SSDEEP

            memory/3756-35-0x0000000005910000-0x0000000005D10000-memory.dmp

            memory/3756-39-0x0000000076930000-0x0000000076B45000-memory.dmp

            memory/3756-37-0x00007FF9A9F50000-0x00007FF9AA145000-memory.dmp

            memory/3756-36-0x0000000005910000-0x0000000005D10000-memory.dmp

            memory/4612-40-0x0000000000890000-0x0000000000899000-memory.dmp

            memory/4612-42-0x00000000023E0000-0x00000000027E0000-memory.dmp

            memory/4612-43-0x00007FF9A9F50000-0x00007FF9AA145000-memory.dmp

            memory/4612-45-0x0000000076930000-0x0000000076B45000-memory.dmp