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Analysis

  • max time kernel
    105s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/12/2022, 22:10

General

  • Target

    892d35e25ed0fbead120f64117cbcf520f41a668fb928e80e0cc2ad242e6ed7b.exe

  • Size

    150KB

  • MD5

    dd60171a9b6dc182bded63a64e3e3f29

  • SHA1

    a6f5a7f1c925f5b29b0eaaba479292ba3d3f7d6d

  • SHA256

    892d35e25ed0fbead120f64117cbcf520f41a668fb928e80e0cc2ad242e6ed7b

  • SHA512

    d4a78a26721a5077409518650baf1841ab8f9459ef11d16b68ba342c08235eb516fff8f7fde8f28376ab37055add68a39b86b2fb5b72f5ae354e425a745bc40e

  • SSDEEP

    3072:0lctl8STlrLKnRVWh0q8ntMviU9tv+SRtcFcoeYkmkC1:0UlJTJLKXq8ntMviU9tmSRqiAkmJ

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Enumerates connected drives 3 TTPs 48 IoCs

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

  • Drops file in Windows directory 10 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\892d35e25ed0fbead120f64117cbcf520f41a668fb928e80e0cc2ad242e6ed7b.exe
    "C:\Users\Admin\AppData\Local\Temp\892d35e25ed0fbead120f64117cbcf520f41a668fb928e80e0cc2ad242e6ed7b.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:488
    • C:\Users\Admin\AppData\Roaming\FBF9.tmp
      C:\Users\Admin\AppData\Roaming\FBF9.tmp
      2⤵
      • Executes dropped EXE
      PID:5040
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 5040 -s 228
        3⤵
        • Program crash
        PID:2964
    • C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\System32\msiexec.exe" /i C:\Users\Admin\AppData\Local\Temp\INS227~1.INI /quiet
      2⤵
      • Enumerates connected drives
      • Suspicious use of AdjustPrivilegeToken
      PID:2112
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\run_dws_file.bat" "
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3840
      • C:\Users\Admin\AppData\Local\Temp\inl39BF.tmp
        C:\Users\Admin\AppData\Local\Temp\inl39BF.tmp cdf1912.tmp
        3⤵
        • Executes dropped EXE
        • Checks computer location settings
        • Suspicious use of WriteProcessMemory
        PID:2400
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\inl39BF.tmp > nul
          4⤵
            PID:2952
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp_ext_favurl_cab.bat" "
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:220
        • C:\Windows\SysWOW64\expand.exe
          expand.exe "C:\Users\Admin\AppData\Local\Temp\favorites_url.cab" -F:*.* "C:\Users\Admin\Favorites"
          3⤵
          • Drops file in Windows directory
          PID:4820
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\892D35~1.EXE > nul
        2⤵
          PID:1392
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5040 -ip 5040
        1⤵
          PID:5028
        • 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:2468
          • C:\Windows\syswow64\MsiExec.exe
            C:\Windows\syswow64\MsiExec.exe -Embedding 7358D39CBF96E0ECBC5F94A4C1E604B2
            2⤵
              PID:4524

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\INS227~1.INI

            Filesize

            66KB

            MD5

            63e19b74dd81985464c5f3804ae1b0ac

            SHA1

            ee35368a1f44775820d1698a6db7e7c8ebf0171b

            SHA256

            9c933da0fe6e0eb5344dae3fa999b1b2652188839ff5ee4db0b82020fa9f6cd0

            SHA512

            f51b54cb1d98270827c8a9da858756d1fc819b2905129f9ae13b69aff2f5088a41275d5ed946471dd6cafb7792e369f6afebd178df4751aececa87aa3666fba5

          • C:\Users\Admin\AppData\Local\Temp\cdf1912.tmp

            Filesize

            768B

            MD5

            d20d9eda31a2d0300e4589df7f352370

            SHA1

            79b46d2dbb489914cfedafdbc90e62951471b48e

            SHA256

            d7a1d6a8cf5c3fbb85cd06147a599f5274630b86b1c89721f10a60c1bbe994d8

            SHA512

            d28c5b69325a9833776ea362445b77b231a0ec9b9b8b4a2ad37a434ee8b2b0c1903d6ade1e372f73ac8ada951e0a24076cf23d9307d27fed5927f4bf8b0d0a5e

          • C:\Users\Admin\AppData\Local\Temp\inl39BF.tmp

            Filesize

            57.2MB

            MD5

            0452f49489bdfcbfeddd7d963395b974

            SHA1

            2e90d39aa4db4d7c6ee55ff1bec6e3f3eb53d118

            SHA256

            e20484b1a1f72d18c9ac3397d4ae7e1b49a65e2d3d14170b973746402c210181

            SHA512

            bae43307dd3035f68879b6887e7ca2eeaa44efce9c13752d914a487f72df41c6732be1fe3b988884ad28b56bde529fda482c5c82b4d8e659184a65d43e0caf06

          • C:\Users\Admin\AppData\Local\Temp\inl39BF.tmp

            Filesize

            57.2MB

            MD5

            0452f49489bdfcbfeddd7d963395b974

            SHA1

            2e90d39aa4db4d7c6ee55ff1bec6e3f3eb53d118

            SHA256

            e20484b1a1f72d18c9ac3397d4ae7e1b49a65e2d3d14170b973746402c210181

            SHA512

            bae43307dd3035f68879b6887e7ca2eeaa44efce9c13752d914a487f72df41c6732be1fe3b988884ad28b56bde529fda482c5c82b4d8e659184a65d43e0caf06

          • C:\Users\Admin\AppData\Local\Temp\run_dws_file.bat

            Filesize

            57B

            MD5

            5f9b7d6393922f781fe39273f53b0a4d

            SHA1

            f78bcc9713ed2669d9edeb04a6cba66b8ab843b5

            SHA256

            3c186149cc34a7a6c9cf940fcbced3eafcf9e86adb020334dc1e16dc3aeb03e7

            SHA512

            cf281f7757acc1e3ce19a03dc094ae78de79a300b0e3b01b6862ba7a5f404e3a712447dde50964c4b6b824e0b6b83b587d613f17262e6558e7f8a8b2a1f754d8

          • C:\Users\Admin\AppData\Local\Temp\tmp_ext_favurl_cab.bat

            Filesize

            98B

            MD5

            8663de6fce9208b795dc913d1a6a3f5b

            SHA1

            882193f208cf012eaf22eeaa4fef3b67e7c67c15

            SHA256

            2909ea8555f2fc19097c1070a1da8fcfd6dc6886aa1d99d7e0c05e53feeb5b61

            SHA512

            9381063e0f85e874be54ae22675393b82c6ab54b223090148e4acbeff6f22393c96c90b83d6538461b695528af01d1f1231cf5dc719f07d6168386974b490688

          • C:\Users\Admin\AppData\Roaming\FBF9.tmp

            Filesize

            345.0MB

            MD5

            77b26596ee4eae4e878b80482e91370a

            SHA1

            1876eefa05b838824615a2fbb2babf380e827b87

            SHA256

            2a67ae8df269e655bb17be187620d510130d6f771e1ca1cf32edd84ed780eb49

            SHA512

            57ca19e2cf8a7ccc6a870048e78d4d5e736f11ecf285dac0e3e62e7f7e6135f2a8e943db78f3fe7f5b51f5180f4cea8e76b3a1c112d2aa9218feae53a537dcf2

          • C:\Users\Admin\AppData\Roaming\FBF9.tmp

            Filesize

            345.0MB

            MD5

            77b26596ee4eae4e878b80482e91370a

            SHA1

            1876eefa05b838824615a2fbb2babf380e827b87

            SHA256

            2a67ae8df269e655bb17be187620d510130d6f771e1ca1cf32edd84ed780eb49

            SHA512

            57ca19e2cf8a7ccc6a870048e78d4d5e736f11ecf285dac0e3e62e7f7e6135f2a8e943db78f3fe7f5b51f5180f4cea8e76b3a1c112d2aa9218feae53a537dcf2

          • \??\c:\users\admin\appdata\local\temp\favorites_url.cab

            Filesize

            425B

            MD5

            da68bc3b7c3525670a04366bc55629f5

            SHA1

            15fda47ecfead7db8f7aee6ca7570138ba7f1b71

            SHA256

            73f3605192b676c92649034768378909a19d13883a7ea6f8ba1b096c78ffadb5

            SHA512

            6fee416affcb6a74621479697bca6f14f5429b00de3aa595abe3c60c6b2e094877b59f8783bbe7bdd567fa565d0630bb02def5603f8f0ea92fe8f2c3ac5383c0

          • memory/488-132-0x0000000000400000-0x000000000043E000-memory.dmp

            Filesize

            248KB

          • memory/488-144-0x0000000000400000-0x000000000043E000-memory.dmp

            Filesize

            248KB

          • memory/488-138-0x0000000000030000-0x0000000000033000-memory.dmp

            Filesize

            12KB

          • memory/488-133-0x0000000000030000-0x0000000000033000-memory.dmp

            Filesize

            12KB

          • memory/5040-137-0x0000000000400000-0x0000000000430000-memory.dmp

            Filesize

            192KB