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Analysis

  • max time kernel
    198s
  • max time network
    209s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05/12/2022, 21:57

General

  • Target

    8ab298f486811beabfc16f34829598ec701d27d42f22a499b4186d7402153219.exe

  • Size

    348KB

  • MD5

    3909ca20eaf5f8f23af553418c9cb400

  • SHA1

    b5069e4181276460ce4f364a74c3030f7da15c9d

  • SHA256

    8ab298f486811beabfc16f34829598ec701d27d42f22a499b4186d7402153219

  • SHA512

    349f9dbed04845cad7246261f577edf00c7e4f4692b658cb46d598e0993cf71a588ac23ee870651f0dadff63cf770bd7b3eaaf6143cde292b581c5dd74f16e84

  • SSDEEP

    6144:gDCwfG1bnxLE3faDCwfG1bnxLE3fbmaGc:g72bntEi72bntEzTGc

Score
10/10

Malware Config

Signatures

  • Modifies visibility of file extensions in Explorer 2 TTPs 3 IoCs
  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 3 IoCs
  • Adds policy Run key to start application 2 TTPs 6 IoCs
  • Executes dropped EXE 6 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Adds Run key to start application 2 TTPs 6 IoCs
  • Drops file in Windows directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 4 IoCs
  • Modifies registry key 1 TTPs 9 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ab298f486811beabfc16f34829598ec701d27d42f22a499b4186d7402153219.exe
    "C:\Users\Admin\AppData\Local\Temp\8ab298f486811beabfc16f34829598ec701d27d42f22a499b4186d7402153219.exe"
    1⤵
    • Modifies visibility of file extensions in Explorer
    • Modifies visiblity of hidden/system files in Explorer
    • Adds Run key to start application
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5040
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:1272
    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      C:\Users\Admin\AppData\Local\Temp\avscan.exe
      2⤵
      • Modifies visibility of file extensions in Explorer
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:308
      • C:\Users\Admin\AppData\Local\Temp\avscan.exe
        C:\Users\Admin\AppData\Local\Temp\avscan.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:4952
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
        3⤵
        • Checks computer location settings
        • Modifies registry class
        • Suspicious use of WriteProcessMemory
        PID:3788
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Modifies visibility of file extensions in Explorer
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Drops file in Windows directory
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4280
          • C:\Users\Admin\AppData\Local\Temp\avscan.exe
            C:\Users\Admin\AppData\Local\Temp\avscan.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:2824
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
            5⤵
            • Checks computer location settings
            • Modifies registry class
            • Suspicious use of WriteProcessMemory
            PID:3840
            • C:\windows\hosts.exe
              C:\windows\hosts.exe
              6⤵
              • Executes dropped EXE
              • Suspicious use of SetWindowsHookEx
              PID:3160
            • C:\Windows\SysWOW64\WScript.exe
              "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
              6⤵
              • Adds policy Run key to start application
              PID:1680
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:2224
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3340
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3472
          • C:\Windows\SysWOW64\REG.exe
            REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
            5⤵
            • Modifies registry key
            PID:3868
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
          4⤵
          • Adds policy Run key to start application
          PID:844
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1280
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3560
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1356
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:480
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3164
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:4408
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
        3⤵
        • Adds policy Run key to start application
        PID:4832
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:1484

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      348KB

      MD5

      c66f4ef3f6bf5529ffa24429e9d65737

      SHA1

      5450efe183955d2b32e5a89c0fabf46edfc41133

      SHA256

      f7338cbadfd4a40c360cb82fc4f46ac871f223044e48274c566950a8ad8386b5

      SHA512

      34ae3d284e393cebb67f8e4cf9aa34fb91f87407f77950fb155bce1607c44c237c5ef5e60ac77e552bcc8d18874f7deeff099a616bbea4e02335a9ddb1bcb281

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      348KB

      MD5

      c66f4ef3f6bf5529ffa24429e9d65737

      SHA1

      5450efe183955d2b32e5a89c0fabf46edfc41133

      SHA256

      f7338cbadfd4a40c360cb82fc4f46ac871f223044e48274c566950a8ad8386b5

      SHA512

      34ae3d284e393cebb67f8e4cf9aa34fb91f87407f77950fb155bce1607c44c237c5ef5e60ac77e552bcc8d18874f7deeff099a616bbea4e02335a9ddb1bcb281

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      348KB

      MD5

      c66f4ef3f6bf5529ffa24429e9d65737

      SHA1

      5450efe183955d2b32e5a89c0fabf46edfc41133

      SHA256

      f7338cbadfd4a40c360cb82fc4f46ac871f223044e48274c566950a8ad8386b5

      SHA512

      34ae3d284e393cebb67f8e4cf9aa34fb91f87407f77950fb155bce1607c44c237c5ef5e60ac77e552bcc8d18874f7deeff099a616bbea4e02335a9ddb1bcb281

    • C:\Users\Admin\AppData\Local\Temp\avscan.exe

      Filesize

      348KB

      MD5

      c66f4ef3f6bf5529ffa24429e9d65737

      SHA1

      5450efe183955d2b32e5a89c0fabf46edfc41133

      SHA256

      f7338cbadfd4a40c360cb82fc4f46ac871f223044e48274c566950a8ad8386b5

      SHA512

      34ae3d284e393cebb67f8e4cf9aa34fb91f87407f77950fb155bce1607c44c237c5ef5e60ac77e552bcc8d18874f7deeff099a616bbea4e02335a9ddb1bcb281

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      5f95187376125e68821db0d42b6e0a01

      SHA1

      24db87fd4f2e71873b08b285de3f584ed606bd7d

      SHA256

      f77ac566569872134310abf6755aaf712f96ddf7e544cd73fa03555415676777

      SHA512

      cecd0b1ab60ed7471870c6b5bb90d65b2e833d535f9a91aea96aae50a86e17fb15f23cd49da74d3ab6d50e54de75e02d9727d9b1d9ec2c32e3b80a4183c0a31c

    • C:\Windows\hosts.exe

      Filesize

      348KB

      MD5

      ba36fdca977789a794a60b38839a7140

      SHA1

      2ab3d338c21cd4c3fc9c1eee569f635dd980c0a5

      SHA256

      64a4282e47a78abe324601456e36d866103057963c73342f243c7462655d3271

      SHA512

      e582332dc39deef9240bf1a8929270b771402824a9d849dd28c2fbcfd2b403abce2cdce34bdb670a894c227c0d6ccc4a4a3f8863c5388df767e1234fbd3bd917

    • C:\Windows\hosts.exe

      Filesize

      348KB

      MD5

      ba36fdca977789a794a60b38839a7140

      SHA1

      2ab3d338c21cd4c3fc9c1eee569f635dd980c0a5

      SHA256

      64a4282e47a78abe324601456e36d866103057963c73342f243c7462655d3271

      SHA512

      e582332dc39deef9240bf1a8929270b771402824a9d849dd28c2fbcfd2b403abce2cdce34bdb670a894c227c0d6ccc4a4a3f8863c5388df767e1234fbd3bd917

    • C:\Windows\hosts.exe

      Filesize

      348KB

      MD5

      ba36fdca977789a794a60b38839a7140

      SHA1

      2ab3d338c21cd4c3fc9c1eee569f635dd980c0a5

      SHA256

      64a4282e47a78abe324601456e36d866103057963c73342f243c7462655d3271

      SHA512

      e582332dc39deef9240bf1a8929270b771402824a9d849dd28c2fbcfd2b403abce2cdce34bdb670a894c227c0d6ccc4a4a3f8863c5388df767e1234fbd3bd917

    • C:\Windows\hosts.exe

      Filesize

      348KB

      MD5

      ba36fdca977789a794a60b38839a7140

      SHA1

      2ab3d338c21cd4c3fc9c1eee569f635dd980c0a5

      SHA256

      64a4282e47a78abe324601456e36d866103057963c73342f243c7462655d3271

      SHA512

      e582332dc39deef9240bf1a8929270b771402824a9d849dd28c2fbcfd2b403abce2cdce34bdb670a894c227c0d6ccc4a4a3f8863c5388df767e1234fbd3bd917

    • C:\windows\hosts.exe

      Filesize

      348KB

      MD5

      ba36fdca977789a794a60b38839a7140

      SHA1

      2ab3d338c21cd4c3fc9c1eee569f635dd980c0a5

      SHA256

      64a4282e47a78abe324601456e36d866103057963c73342f243c7462655d3271

      SHA512

      e582332dc39deef9240bf1a8929270b771402824a9d849dd28c2fbcfd2b403abce2cdce34bdb670a894c227c0d6ccc4a4a3f8863c5388df767e1234fbd3bd917

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b