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Analysis

  • max time kernel
    136s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/10/2022, 22:17

General

  • Target

    33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe

  • Size

    375KB

  • MD5

    e61731ea56d0ae4dfc434348c0204925

  • SHA1

    44dccbc5162966cf80d84fd5908effb24fdb02b1

  • SHA256

    33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797

  • SHA512

    f8cae56a393aaf1625033692c0664f4d7377ac533530625cc66105535117559cb6f85c29d708afdeebfe30335db55ecc035ca1583dfb11944e9c6d432475eec3

  • SSDEEP

    6144:cv5zQJVb5p72cHF1ybDFwekh212KhvwIb759QOaBjpaVRPu23E2rJmWjFc94:c4VOiF1WD7kE1dTYOi8V5u23zmWFy4

Score
10/10

Malware Config

Signatures

  • Gh0st RAT payload 12 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Executes dropped EXE 4 IoCs
  • UPX packed file 14 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops file in System32 directory 4 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 5 IoCs

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

  • Modifies data under HKEY_USERS 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 8 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe
    "C:\Users\Admin\AppData\Local\Temp\33542bfff3727131d00639ac7264ca3ae7806ede3af57245716fa46ba24a3797.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5004
    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
      "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4984
  • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
    "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2188
    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
      "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in System32 directory
      • Checks processor information in registry
      • Modifies data under HKEY_USERS
      • Suspicious use of AdjustPrivilegeToken
      PID:3296
    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe
      "C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4620
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2188 -s 576
      2⤵
      • Program crash
      PID:3116
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2188 -ip 2188
    1⤵
      PID:1080

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      b55a6defde445c1e9f9e0e33a297d362

      SHA1

      b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

      SHA256

      c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

      SHA512

      f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      b55a6defde445c1e9f9e0e33a297d362

      SHA1

      b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

      SHA256

      c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

      SHA512

      f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      b55a6defde445c1e9f9e0e33a297d362

      SHA1

      b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

      SHA256

      c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

      SHA512

      f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      b55a6defde445c1e9f9e0e33a297d362

      SHA1

      b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

      SHA256

      c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

      SHA512

      f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

    • C:\Program Files (x86)\Microsoft SQL Server\SQLSerasi.exe

      Filesize

      39.4MB

      MD5

      b55a6defde445c1e9f9e0e33a297d362

      SHA1

      b9a01239db85b5f60ccd41c5dbe6f15e4d6635a0

      SHA256

      c8f4c8a4ce47b8404e18456d7cc0322c6de6d686bf4c82445020d1eb28910e5d

      SHA512

      f43064f132f24ad3de41da5f2109d39a019718252628f61b2656939fc460e4a9e5c13e7d84ccb57c04424c91fc909db86d04bbec424b7cee9b6a7a38a9377e58

    • memory/2188-181-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/2188-154-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/2188-159-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/2188-160-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/2188-161-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/2188-157-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/3296-167-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/3296-180-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/4620-178-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/4620-179-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/4984-162-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/4984-151-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/4984-148-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/4984-155-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/5004-141-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/5004-145-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/5004-132-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/5004-140-0x0000000000400000-0x0000000000469000-memory.dmp

      Filesize

      420KB

    • memory/5004-139-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/5004-138-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/5004-137-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/5004-136-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB

    • memory/5004-133-0x0000000010000000-0x0000000010362000-memory.dmp

      Filesize

      3.4MB