Analysis

  • max time kernel
    92s
  • max time network
    205s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-es
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-eslocale:es-esos:windows10-2004-x64systemwindows
  • submitted
    08/12/2024, 00:49

General

  • Target
    Setup.msi
  • Size 53.6MB
  • Sample241208-a6dbtayman
  • SHA256 4bc409c39bbad88d3141fd6eb71f03af9ae6f0f404faf71bd17a3e26676f6d89
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Blocklisted process makes network request 3 IoCs
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Drops file in Windows directory 18 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 15 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Embeds OpenSSL 1 IoCs

    Embeds OpenSSL, may be used to circumvent TLS interception.

  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Setup.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1544
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3524
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1C7EF46C8DCF65C86A6CE9EA3DCBC46E
      2⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2440
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        -NoProfile -Noninteractive -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\pssAF5D.ps1" -propFile "C:\Users\Admin\AppData\Local\Temp\msiAF5A.txt" -scriptFile "C:\Users\Admin\AppData\Local\Temp\scrAF5B.ps1" -scriptArgsFile "C:\Users\Admin\AppData\Local\Temp\scrAF5C.txt" -propSep " :<->: " -lineSep " <<:>> " -testPrefix "_testValue."
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:5060
    • C:\Users\Admin\AppData\Roaming\Grovi Tend\Ifid Apps\openvpn.exe
      "C:\Users\Admin\AppData\Roaming\Grovi Tend\Ifid Apps\openvpn.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1584

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        e5793c7.rbs

        • Path C:\Config.Msi\e5793c7.rbs
        • Size 23KB
        • SHA256 ebad91a534d2653088c6d4e4e2133ed6070a3ffbf300044958f8e5247eff62ad
        • MD5 SHA1 SHA512 SSDEEP

        __PSScriptPolicyTest_gjfr31tm.pvi.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_gjfr31tm.pvi.ps1
        • Size 60B
        • SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
        • MD5 SHA1 SHA512

        msiAF5A.txt

        • Path C:\Users\Admin\AppData\Local\Temp\msiAF5A.txt
        • Size 78B
        • SHA256 c649102ba0557280026cf8ee76a342210968dab65155779243b9f30076cc1487
        • MD5 SHA1 SHA512

        msiAF5A.txt

        • Path C:\Users\Admin\AppData\Local\Temp\msiAF5A.txt
        • Size 122B
        • SHA256 a4c7d6203aee535acf78fa50329d7fd325c09f7c5d0a83f123b4304970e6426b
        • MD5 SHA1 SHA512

        pssAF5D.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\pssAF5D.ps1
        • Size 6KB
        • SHA256 53094df6fa4e57a3265ff04bc1e970c10bcdb3d4094ad6dd610c05b7a8b79e0f
        • MD5 SHA1 SHA512 SSDEEP

        scrAF5B.ps1

        • Path C:\Users\Admin\AppData\Local\Temp\scrAF5B.ps1
        • Size 288B
        • SHA256 8bc5b5f9b666fe7cff50539329f096f2d69ba3280084fcda670a3314896359db
        • MD5 SHA1 SHA512

        VCRUNTIME140.dll

        • Path C:\Users\Admin\AppData\Roaming\Grovi Tend\Ifid Apps\VCRUNTIME140.dll
        • Size 94KB
        • SHA256 c51c64dfb7c445ecf0001f69c27e13299ddcfba0780efa72b866a7487b7491c7
        • MD5 SHA1 SHA512 SSDEEP

        libcrypto-3-x64.dll

        • Path C:\Users\Admin\AppData\Roaming\Grovi Tend\Ifid Apps\libcrypto-3-x64.dll
        • Size 4.5MB
        • SHA256 d9e31123fb00ba631fccd9e697cd5f4da4a4d09cb62f5b6f2f4c49eed8a8e27e
        • MD5 SHA1 SHA512 SSDEEP

        libpkcs11-helper-1.dll

        • Path C:\Users\Admin\AppData\Roaming\Grovi Tend\Ifid Apps\libpkcs11-helper-1.dll
        • Size 1.2MB
        • SHA256 bbc1aeae3b54dfb28ba46a96c233e74d384f1a13b594feb231e4c12943dc57d2
        • MD5 SHA1 SHA512 SSDEEP

        libssl-3-x64.dll

        • Path C:\Users\Admin\AppData\Roaming\Grovi Tend\Ifid Apps\libssl-3-x64.dll
        • Size 809KB
        • SHA256 b9e15674a3dc28d604f3a03398f2f421c3654c1376d5aad3a4835538e1c61f1a
        • MD5 SHA1 SHA512 SSDEEP

        openvpn.exe

        • Path C:\Users\Admin\AppData\Roaming\Grovi Tend\Ifid Apps\openvpn.exe
        • Size 1014KB
        • SHA256 ac94fbb73ebd0ce13aea7c1afcba0df9a646cbe5795e804fa0c0ac4eba259e16
        • MD5 SHA1 SHA512 SSDEEP

        MSI948F.tmp

        • Path C:\Windows\Installer\MSI948F.tmp
        • Size 997KB
        • SHA256 7bbf611f5e2a16439dc8cd11936f6364f6d5cc0044545c92775da5646afc7752
        • MD5 SHA1 SHA512 SSDEEP

        MSIA3D8.tmp

        • Path C:\Windows\Installer\MSIA3D8.tmp
        • Size 371KB
        • SHA256 7484797ea4480bc71509fa28b16e607f82323e05c44f59ffa65db3826ed1b388
        • MD5 SHA1 SHA512 SSDEEP

        MSIAE97.tmp

        • Path C:\Windows\Installer\MSIAE97.tmp
        • Size 769KB
        • SHA256 ccb57bdbb19e1aeb2c8dd3845cdc53880c1979284e7b26a1d8ae73bbeaf25474
        • MD5 SHA1 SHA512 SSDEEP

        MSIBB98.tmp

        • Path C:\Windows\Installer\MSIBB98.tmp
        • Size 250KB
        • SHA256 8e1b93631c730c9ecdadf15477cca540a45a8935ef200a435ba84e15d4b1c80f
        • MD5 SHA1 SHA512 SSDEEP

        memory/5060-56-0x0000000004F50000-0x0000000004FB6000-memory.dmp

        memory/5060-68-0x0000000005C20000-0x0000000005D22000-memory.dmp

        memory/5060-73-0x0000000006280000-0x000000000629A000-memory.dmp

        memory/5060-74-0x00000000062E0000-0x00000000062F4000-memory.dmp

        memory/5060-75-0x0000000007010000-0x00000000070A6000-memory.dmp

        memory/5060-76-0x0000000006D10000-0x0000000006D32000-memory.dmp

        memory/5060-77-0x00000000080C0000-0x0000000008664000-memory.dmp

        memory/5060-70-0x0000000005D50000-0x0000000005D9C000-memory.dmp

        memory/5060-69-0x0000000005D30000-0x0000000005D4E000-memory.dmp

        memory/5060-72-0x0000000007490000-0x0000000007B0A000-memory.dmp

        memory/5060-67-0x0000000004AD0000-0x0000000004AE0000-memory.dmp

        memory/5060-66-0x00000000057B0000-0x0000000005B04000-memory.dmp

        memory/5060-55-0x0000000004EE0000-0x0000000004F46000-memory.dmp

        memory/5060-54-0x0000000004AA0000-0x0000000004AC2000-memory.dmp

        memory/5060-53-0x0000000004AE0000-0x0000000004B62000-memory.dmp

        memory/5060-52-0x0000000005080000-0x00000000056A8000-memory.dmp

        memory/5060-51-0x0000000002580000-0x00000000025B6000-memory.dmp