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Analysis

  • max time kernel
    140s
  • max time network
    127s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
  • submitted
    07/11/2023, 14:37

General

  • Target

    SETUP.bat

  • Size

    192B

  • MD5

    4200cecaf0d0d6838e48b87f78c90c19

  • SHA1

    9ac646870d4047e34d72ea244d003397bb4e54be

  • SHA256

    1c684469f8230b75ca0c8e6d1ed39bfdbe22d7259e7c992986f9f3897bf91c05

  • SHA512

    1f363479d82e6d9f1f8e068aff25043f8af44027a49c337f788ead27329e510c9e8bed755d5a7cb484be3fcfcfeb986481e82d68cc4689fd92f79c7df22169e0

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 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 Program Files directory 1 IoCs
  • Drops file in Windows directory 61 IoCs
  • Modifies data under HKEY_USERS 46 IoCs
  • Modifies registry class 56 IoCs
  • Suspicious behavior: CmdExeWriteProcessMemorySpam 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c "C:\Users\Admin\AppData\Local\Temp\SETUP.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2116
    • C:\Users\Admin\AppData\Local\Temp\vcredist_x86.exe
      vcredist_x86.exe /q:a /c:"msiexec /i vcredist.msi /qb!"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: CmdExeWriteProcessMemorySpam
      • Suspicious use of WriteProcessMemory
      PID:3048
      • C:\Windows\SysWOW64\msiexec.exe
        msiexec /i vcredist.msi /qb!
        3⤵
        • Enumerates connected drives
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:2408
    • C:\Windows\system32\msiexec.exe
      msiexec /i postgresql-8.3.msi
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: CmdExeWriteProcessMemorySpam
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      PID:2780
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • 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:2216
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 1CDB9189811B6E03DE3CDF96CEFC247A
      2⤵
      • Loads dropped DLL
      PID:2552
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding FDD08CD7E95149FCAA96DEDDC0E8F4DC C
      2⤵
      • Loads dropped DLL
      PID:440
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2232
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "00000000000003AC" "00000000000005AC"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredis1.cab

    Filesize

    247KB

    MD5

    cc064d4b81619991de8131a86ad77681

    SHA1

    88d80d86cc20c27d7d2a872af719300bd2bb73f9

    SHA256

    913ee5a1cae3e5a1872b3a5efaaa00c58e4beb692492b138f76967da671b0477

    SHA512

    5aff0eb26cfc187bf58721b2b6d73357d9f1e66d1ac5340ad9ddc08b40ad0eda27a144cb3b650604637a7476c282ded83ed890de98a73ccaf0cc021da3a9eb25

  • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\vcredist.msi

    Filesize

    2.6MB

    MD5

    b20bbeb818222b657df49a9cfe4fed79

    SHA1

    3f6508e880b86502773a3275bc9527f046d45502

    SHA256

    91bdd063f6c53126737791c9eccf0b2f4cf44927831527245bc89a0be06c0cb4

    SHA512

    f534bc7bf1597e728940e6c3b77f864adfaa413bb1e080458326b692b0f96bddf4fbd294eeed36d7764a3578e6c8e919488bbf63b8fe2d4355ab3efd685424a4

  • C:\Users\Admin\AppData\Local\Temp\MSI53BB.tmp

    Filesize

    48KB

    MD5

    64f789def050b343a101e830414a47dd

    SHA1

    18d19b115a0aa5cf833f9ae2ffbb8c268b2f4c2d

    SHA256

    054659ac09113ff34b36883f895d73c4d2890b07e7c74fce803da763061a8c1c

    SHA512

    85ff5816bd1274529cf935ab211f8eb8431ecba18675a8a88ea8ccf051797ed2c3e6ea26650742eb5adb14b74f98e02a8bbcdc20eb413891d7a82a4517fd59e9

  • C:\Windows\Installer\MSI1528.tmp

    Filesize

    28KB

    MD5

    85221b3bcba8dbe4b4a46581aa49f760

    SHA1

    746645c92594bfc739f77812d67cfd85f4b92474

    SHA256

    f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

    SHA512

    060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d

  • C:\Windows\Installer\f77119d.msi

    Filesize

    2.6MB

    MD5

    b20bbeb818222b657df49a9cfe4fed79

    SHA1

    3f6508e880b86502773a3275bc9527f046d45502

    SHA256

    91bdd063f6c53126737791c9eccf0b2f4cf44927831527245bc89a0be06c0cb4

    SHA512

    f534bc7bf1597e728940e6c3b77f864adfaa413bb1e080458326b692b0f96bddf4fbd294eeed36d7764a3578e6c8e919488bbf63b8fe2d4355ab3efd685424a4

  • \Users\Admin\AppData\Local\Temp\MSI53BB.tmp

    Filesize

    48KB

    MD5

    64f789def050b343a101e830414a47dd

    SHA1

    18d19b115a0aa5cf833f9ae2ffbb8c268b2f4c2d

    SHA256

    054659ac09113ff34b36883f895d73c4d2890b07e7c74fce803da763061a8c1c

    SHA512

    85ff5816bd1274529cf935ab211f8eb8431ecba18675a8a88ea8ccf051797ed2c3e6ea26650742eb5adb14b74f98e02a8bbcdc20eb413891d7a82a4517fd59e9

  • \Windows\Installer\MSI1528.tmp

    Filesize

    28KB

    MD5

    85221b3bcba8dbe4b4a46581aa49f760

    SHA1

    746645c92594bfc739f77812d67cfd85f4b92474

    SHA256

    f6e34a4550e499346f5ab1d245508f16bf765ff24c4988984b89e049ca55737f

    SHA512

    060e35c4de14a03a2cda313f968e372291866cc4acd59977d7a48ac3745494abc54df83fff63cf30be4e10ff69a3b3c8b6c38f43ebd2a8d23d6c86fbee7ba87d