Analysis

  • max time kernel
    117s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-12-2024 17:44

General

  • Target

    setup.msi

  • Size

    2.0MB

  • MD5

    c4fd4e278fa9213069e5e786606e5120

  • SHA1

    452403f6f96b7d61201bd29b1139d65e6e81ad47

  • SHA256

    86f2fe4cb375e8a8ac2770c82050a135761a3b58e19232f8eaad3756c6ae94a7

  • SHA512

    f0cf5633ec56fb2b88aa8b10119c3b2c2b4af7dc9c216c43c43954225ac9111eb47199adff0b361a0549a4035bc0f9c937a2bd7f4195d5432940bff9089758eb

  • SSDEEP

    24576:tt9cpVDh4l3/heB1MMe49nn9avnA/4a/JnFVWNCJGEuST:ipRh45/hefMbInP4axQZST

Malware Config

Signatures

  • Modifies file permissions 1 TTPs 2 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 11 IoCs
  • Loads dropped DLL 1 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Modifies data under HKEY_USERS 43 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 53 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs
  • Uses Volume Shadow Copy service COM API

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

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:2924
  • 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:2716
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 33DB2420B653C9E9C12E0F3C125142A0
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3028
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-876caa9c-d49e-4f34-b978-bfc599948667\." /SETINTEGRITYLEVEL (CI)(OI)HIGH
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:1228
      • C:\Windows\SysWOW64\EXPAND.EXE
        "C:\Windows\system32\EXPAND.EXE" -R files.cab -F:* files
        3⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        PID:448
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c start msedge https://www.docusign.com/sites/default/files/Signature_Appliance_Client_Guide_8.0.pdf
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2776
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c rd /s /q "C:\Users\Admin\AppData\Local\Temp\MW-876caa9c-d49e-4f34-b978-bfc599948667\files"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1696
      • C:\Windows\SysWOW64\ICACLS.EXE
        "C:\Windows\system32\ICACLS.EXE" "C:\Users\Admin\AppData\Local\Temp\MW-876caa9c-d49e-4f34-b978-bfc599948667\." /SETINTEGRITYLEVEL (CI)(OI)LOW
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2140
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2908
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000005D0" "0000000000000558"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MW-876caa9c-d49e-4f34-b978-bfc599948667\files.cab

    Filesize

    1.7MB

    MD5

    c2e7c01653046e6b379dab9b2e3aea77

    SHA1

    3b6b2d7e88189b8b59b42bfca97daf8c861ea9db

    SHA256

    1f8097cd8c16b83efe4f41bc3ac9137bab69dcbf912cf6ff0e68ddb19318a45a

    SHA512

    a02ce1b231b16f0e1b4fbd3fc880147e3d84388e293976a6d712ee647e51dc7ac8742ad49471df0e3fd5956919f63a97df66e1f8e239ef4be828abf17504fcb1

  • C:\Users\Admin\AppData\Local\Temp\MW-876caa9c-d49e-4f34-b978-bfc599948667\msiwrapper.ini

    Filesize

    342B

    MD5

    dbffde8aa12fe0a1e73a794985c490b3

    SHA1

    4293057c4a6a524e81cb96e65ba135a83a6d9c88

    SHA256

    017d6f722425412a1461799d5c61b8095d91401cc44333e9e5b1d56e67519494

    SHA512

    f41150779dd7fa8dcbe7a7dcccb9ed090632167d8d88e2b7c93d71304d55e0cafda6ff3652f6ae3cb72f38898d8f849fbe7ec5791d135c936ddcb015d6422f1f

  • C:\Users\Admin\AppData\Local\Temp\MW-876caa9c-d49e-4f34-b978-bfc599948667\msiwrapper.ini

    Filesize

    1KB

    MD5

    8d7925099c278f9e9083e196e1f372ae

    SHA1

    288bb59df56b503f192e57f57d899966127848f4

    SHA256

    e63775639b349c5ead1524d41e72dd87b8effa09130b9d542de0108db9d12517

    SHA512

    48247aa5e89412848833cd36599c65493b8f14acb58087a8bc622d95690ef0181c0049027596892c05cb0be142c6679bf830498005a33140a4cf42aa0b8ed260

  • C:\Users\Admin\AppData\Local\Temp\MW-876caa9c-d49e-4f34-b978-bfc599948667\msiwrapper.ini

    Filesize

    1KB

    MD5

    7a0011678d7283f90c5a62554cc8c2d7

    SHA1

    b881a657d3965a50f0abb559af26c37f71c9edd3

    SHA256

    0f5d300e79a606e90ce845f870f8749997ca581c655c5bdaf98520a6614df1a0

    SHA512

    c4ffa570045081fa025555490ea2a3f425265bbcfbd5158eeaf45d350a439d51802e8c7f312023da712d671e4f54f61a70b025ab55b4c06bb970a9f0790fbb78

  • C:\Windows\Installer\MSI361E.tmp

    Filesize

    208KB

    MD5

    0c8921bbcc37c6efd34faf44cf3b0cb5

    SHA1

    dcfa71246157edcd09eecaf9d4c5e360b24b3e49

    SHA256

    fd622cf73ea951a6de631063aba856487d77745dd1500adca61902b8dde56fe1

    SHA512

    ed55443e20d40cca90596f0a0542fa5ab83fe0270399adfaafd172987fb813dfd44ec0da0a58c096af3641003f830341fe259ad5bce9823f238ae63b7e11e108