Analysis

  • max time kernel
    130s
  • max time network
    164s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/10/2022, 17:41

General

  • Target

    59a22515331c0b5b37278aa74edeb75af874776b8c0be0699cf924ef8a59e7e7.exe

  • Size

    366KB

  • MD5

    004fc72bbbaf2d64590c336d07200218

  • SHA1

    b600ce844a8605e323880894424d1dc6b6194b33

  • SHA256

    59a22515331c0b5b37278aa74edeb75af874776b8c0be0699cf924ef8a59e7e7

  • SHA512

    a2eb7655d10b22af330d5fdbc87cdf156b011453d23cd8b92655cd474d3ae4045c58dd67d8380498a992a920e3a1cdb5f9ad27af155906c5ca89e4d0db2dfce4

  • SSDEEP

    6144:gDCwfG1bnxL8CQo6DCwfG1bnxL8CQoeYK:g72bntdQ572bntdQbZ

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\59a22515331c0b5b37278aa74edeb75af874776b8c0be0699cf924ef8a59e7e7.exe
    "C:\Users\Admin\AppData\Local\Temp\59a22515331c0b5b37278aa74edeb75af874776b8c0be0699cf924ef8a59e7e7.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:2232
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:4364
    • 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:5048
    • 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:3524
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3940
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3388
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1124
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:1120
  • C:\Users\Admin\AppData\Local\Temp\avscan.exe
    C:\Users\Admin\AppData\Local\Temp\avscan.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:4336
  • C:\windows\hosts.exe
    C:\windows\hosts.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetWindowsHookEx
    PID:912
  • C:\windows\hosts.exe
    C:\windows\hosts.exe
    1⤵
    • 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:2420
    • C:\Users\Admin\AppData\Local\Temp\avscan.exe
      C:\Users\Admin\AppData\Local\Temp\avscan.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4668
    • 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:4864
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:5076
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:2184
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:4416
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:2660
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:4028
    • C:\windows\hosts.exe
      C:\windows\hosts.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4572
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
      1⤵
      • Adds policy Run key to start application
      PID:1528
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
      1⤵
      • Adds policy Run key to start application
      PID:1436
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
      1⤵
      • Adds policy Run key to start application
      PID:2224
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
      1⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:5104

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

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

            Filesize

            366KB

            MD5

            15bcad09a99b9eb614fe205dc14f1ba0

            SHA1

            fb72a996cc378218a4095f4de7bb49059061573b

            SHA256

            5191214eeb098dff5adc7fd37ac8f20f817436747fbead2aa70c2d0aa8c6295c

            SHA512

            96f391f143e3715e5b567ae5c56fb20cd3eda8523d72cd1d2a6a5e60722d6f0db157a06daa6f32e3271bf7cc662f5a1360838919da58d6b63ac0a229adf28268

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

            Filesize

            366KB

            MD5

            15bcad09a99b9eb614fe205dc14f1ba0

            SHA1

            fb72a996cc378218a4095f4de7bb49059061573b

            SHA256

            5191214eeb098dff5adc7fd37ac8f20f817436747fbead2aa70c2d0aa8c6295c

            SHA512

            96f391f143e3715e5b567ae5c56fb20cd3eda8523d72cd1d2a6a5e60722d6f0db157a06daa6f32e3271bf7cc662f5a1360838919da58d6b63ac0a229adf28268

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

            Filesize

            366KB

            MD5

            15bcad09a99b9eb614fe205dc14f1ba0

            SHA1

            fb72a996cc378218a4095f4de7bb49059061573b

            SHA256

            5191214eeb098dff5adc7fd37ac8f20f817436747fbead2aa70c2d0aa8c6295c

            SHA512

            96f391f143e3715e5b567ae5c56fb20cd3eda8523d72cd1d2a6a5e60722d6f0db157a06daa6f32e3271bf7cc662f5a1360838919da58d6b63ac0a229adf28268

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

            Filesize

            366KB

            MD5

            15bcad09a99b9eb614fe205dc14f1ba0

            SHA1

            fb72a996cc378218a4095f4de7bb49059061573b

            SHA256

            5191214eeb098dff5adc7fd37ac8f20f817436747fbead2aa70c2d0aa8c6295c

            SHA512

            96f391f143e3715e5b567ae5c56fb20cd3eda8523d72cd1d2a6a5e60722d6f0db157a06daa6f32e3271bf7cc662f5a1360838919da58d6b63ac0a229adf28268

          • C:\Windows\W_X_C.vbs

            Filesize

            195B

            MD5

            5b87381bf407d7c6018a8b11c3e20f92

            SHA1

            bb61b28d9c8fd7dfeb13a397c49a1be3abc06ca2

            SHA256

            4785d6a229d0872fe90c75ab620de9a680d7f07ccd27a134da2afc4ee88f34f3

            SHA512

            05db1178f671e9d6c3a1c601349093447b04ebddcd071a06f7cc92cbaf7efb53027bc92523a19372a08ca5af715cc9955649255f8be1909b5e594385b3dcbe3d

          • C:\Windows\hosts.exe

            Filesize

            366KB

            MD5

            744410d3ac1b96a0cc0b527168fe7529

            SHA1

            97f467a1fa95861a530f5904feb7b8e21c11007d

            SHA256

            ed7da04404c7adbf58654bd09d1ab5d439c6d988a16fa279b36a9cd840b50b85

            SHA512

            a15dbdbce9b53af72d3cd83474377024fbe84b905bd28f23a925fd19cb43bb9fba478486fa6e16741ecbdc7362231a9560bfb5feb6df138da3bb79e696977646

          • C:\Windows\hosts.exe

            Filesize

            366KB

            MD5

            744410d3ac1b96a0cc0b527168fe7529

            SHA1

            97f467a1fa95861a530f5904feb7b8e21c11007d

            SHA256

            ed7da04404c7adbf58654bd09d1ab5d439c6d988a16fa279b36a9cd840b50b85

            SHA512

            a15dbdbce9b53af72d3cd83474377024fbe84b905bd28f23a925fd19cb43bb9fba478486fa6e16741ecbdc7362231a9560bfb5feb6df138da3bb79e696977646

          • C:\Windows\hosts.exe

            Filesize

            366KB

            MD5

            744410d3ac1b96a0cc0b527168fe7529

            SHA1

            97f467a1fa95861a530f5904feb7b8e21c11007d

            SHA256

            ed7da04404c7adbf58654bd09d1ab5d439c6d988a16fa279b36a9cd840b50b85

            SHA512

            a15dbdbce9b53af72d3cd83474377024fbe84b905bd28f23a925fd19cb43bb9fba478486fa6e16741ecbdc7362231a9560bfb5feb6df138da3bb79e696977646

          • C:\Windows\hosts.exe

            Filesize

            366KB

            MD5

            744410d3ac1b96a0cc0b527168fe7529

            SHA1

            97f467a1fa95861a530f5904feb7b8e21c11007d

            SHA256

            ed7da04404c7adbf58654bd09d1ab5d439c6d988a16fa279b36a9cd840b50b85

            SHA512

            a15dbdbce9b53af72d3cd83474377024fbe84b905bd28f23a925fd19cb43bb9fba478486fa6e16741ecbdc7362231a9560bfb5feb6df138da3bb79e696977646

          • C:\windows\hosts.exe

            Filesize

            366KB

            MD5

            744410d3ac1b96a0cc0b527168fe7529

            SHA1

            97f467a1fa95861a530f5904feb7b8e21c11007d

            SHA256

            ed7da04404c7adbf58654bd09d1ab5d439c6d988a16fa279b36a9cd840b50b85

            SHA512

            a15dbdbce9b53af72d3cd83474377024fbe84b905bd28f23a925fd19cb43bb9fba478486fa6e16741ecbdc7362231a9560bfb5feb6df138da3bb79e696977646

          • \??\c:\windows\W_X_C.bat

            Filesize

            336B

            MD5

            4db9f8b6175722b62ececeeeba1ce307

            SHA1

            3b3ba8414706e72a6fa19e884a97b87609e11e47

            SHA256

            d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

            SHA512

            1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b