Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/11/2022, 13:07

General

  • Target

    9905a9b56a5e88edaf6d43badfdf6db9ce86837f5a8436164033e6b0bf381c1c.exe

  • Size

    367KB

  • MD5

    03d59a294951b4b4a8026e5dede58ec7

  • SHA1

    bdeb0d484970a309c655019755d6604ec42a2b20

  • SHA256

    9905a9b56a5e88edaf6d43badfdf6db9ce86837f5a8436164033e6b0bf381c1c

  • SHA512

    cbc09e48cdb5e41e27f8099c33a0f1709ddab131494aadaca7caa8f30e03c35b168294d331bfed8d01ae5ada4e34772909bffedb05e0f1c2d4725742c88bdfce

  • SSDEEP

    6144:gDCwfG1bnxLERR9saMDCwfG1bnxLERR9satG14W:g72bntEL9/M72bntEL9/tG1p

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 3 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 63 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9905a9b56a5e88edaf6d43badfdf6db9ce86837f5a8436164033e6b0bf381c1c.exe
    "C:\Users\Admin\AppData\Local\Temp\9905a9b56a5e88edaf6d43badfdf6db9ce86837f5a8436164033e6b0bf381c1c.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 behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4040
    • C:\Windows\SysWOW64\REG.exe
      REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
      2⤵
      • Modifies registry key
      PID:3060
    • 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:4564
      • 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:4960
      • 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:4892
        • C:\windows\hosts.exe
          C:\windows\hosts.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:612
        • 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:1244
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4200
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3628
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:4220
      • C:\Windows\SysWOW64\REG.exe
        REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
        3⤵
        • Modifies registry key
        PID:3364
    • 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:1496
      • C:\windows\hosts.exe
        C:\windows\hosts.exe
        3⤵
        • 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:4808
        • C:\Users\Admin\AppData\Local\Temp\avscan.exe
          C:\Users\Admin\AppData\Local\Temp\avscan.exe
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:3504
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /c c:\windows\W_X_C.bat
          4⤵
          • Checks computer location settings
          • Modifies registry class
          • Suspicious use of WriteProcessMemory
          PID:4832
          • C:\windows\hosts.exe
            C:\windows\hosts.exe
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetWindowsHookEx
            PID:4420
          • C:\Windows\SysWOW64\WScript.exe
            "C:\Windows\System32\WScript.exe" "C:\Windows\W_X_C.vbs"
            5⤵
            • Adds policy Run key to start application
            PID:3320
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1460
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:1756
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:408
        • C:\Windows\SysWOW64\REG.exe
          REG DELETE HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
          4⤵
          • Modifies registry key
          PID:4772
      • 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:2012
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:392

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

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

      Filesize

      367KB

      MD5

      871fa402e866bd7ef90f15c1c6a0b760

      SHA1

      dff5ec58a7127e0cce3ee2fa50f66d435853d3be

      SHA256

      d2761215adb8393686a70765b905d487edcdedf3d0089c127b6a465ee449999f

      SHA512

      82d0742f3c7b307ddbda3cde49517547c0d23f2a82bff0024797d83ada191be47d3082ccd58e3c2ba2c7d3b0b1848244bce172246e50eaceb0202c1f284b029f

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

      Filesize

      367KB

      MD5

      871fa402e866bd7ef90f15c1c6a0b760

      SHA1

      dff5ec58a7127e0cce3ee2fa50f66d435853d3be

      SHA256

      d2761215adb8393686a70765b905d487edcdedf3d0089c127b6a465ee449999f

      SHA512

      82d0742f3c7b307ddbda3cde49517547c0d23f2a82bff0024797d83ada191be47d3082ccd58e3c2ba2c7d3b0b1848244bce172246e50eaceb0202c1f284b029f

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

      Filesize

      367KB

      MD5

      871fa402e866bd7ef90f15c1c6a0b760

      SHA1

      dff5ec58a7127e0cce3ee2fa50f66d435853d3be

      SHA256

      d2761215adb8393686a70765b905d487edcdedf3d0089c127b6a465ee449999f

      SHA512

      82d0742f3c7b307ddbda3cde49517547c0d23f2a82bff0024797d83ada191be47d3082ccd58e3c2ba2c7d3b0b1848244bce172246e50eaceb0202c1f284b029f

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

      Filesize

      367KB

      MD5

      871fa402e866bd7ef90f15c1c6a0b760

      SHA1

      dff5ec58a7127e0cce3ee2fa50f66d435853d3be

      SHA256

      d2761215adb8393686a70765b905d487edcdedf3d0089c127b6a465ee449999f

      SHA512

      82d0742f3c7b307ddbda3cde49517547c0d23f2a82bff0024797d83ada191be47d3082ccd58e3c2ba2c7d3b0b1848244bce172246e50eaceb0202c1f284b029f

    • C:\Windows\W_X_C.vbs

      Filesize

      195B

      MD5

      7fc0db81060e343fd209dc050b401f77

      SHA1

      08ce8975b023bf90c21b8e64cd54fdd39debce04

      SHA256

      4a21d378652d4291a6b9e88a1934ac51e9eccd5c9a42aa09076219301509367f

      SHA512

      e0d13ba3713707f7cb9be56240930a8f47d8c302e692b49dcb01f7bdf3e3475f829e1ead60ce6a5f98bed591be96456e9c3ef67bb27f88dc70343c1412e9de57

    • C:\Windows\hosts.exe

      Filesize

      367KB

      MD5

      5001a027bbd2b1ed054f6cb40ebc7121

      SHA1

      6811a19f357ba494da5d4f3bb8d0f45b9bd35022

      SHA256

      aa78a5ff15dc36f6fb7aaa764722f463f2c9f3724ce1df1e8f3e5638620838ae

      SHA512

      2af020f707d1542a76e7ca581f0531331dcd2553f618cad9a44ccc2830652a6fece526ba35f09bb5e989a93e79c425dc727377eaff21aed8e033f95f981af287

    • C:\Windows\hosts.exe

      Filesize

      367KB

      MD5

      5001a027bbd2b1ed054f6cb40ebc7121

      SHA1

      6811a19f357ba494da5d4f3bb8d0f45b9bd35022

      SHA256

      aa78a5ff15dc36f6fb7aaa764722f463f2c9f3724ce1df1e8f3e5638620838ae

      SHA512

      2af020f707d1542a76e7ca581f0531331dcd2553f618cad9a44ccc2830652a6fece526ba35f09bb5e989a93e79c425dc727377eaff21aed8e033f95f981af287

    • C:\Windows\hosts.exe

      Filesize

      367KB

      MD5

      5001a027bbd2b1ed054f6cb40ebc7121

      SHA1

      6811a19f357ba494da5d4f3bb8d0f45b9bd35022

      SHA256

      aa78a5ff15dc36f6fb7aaa764722f463f2c9f3724ce1df1e8f3e5638620838ae

      SHA512

      2af020f707d1542a76e7ca581f0531331dcd2553f618cad9a44ccc2830652a6fece526ba35f09bb5e989a93e79c425dc727377eaff21aed8e033f95f981af287

    • C:\Windows\hosts.exe

      Filesize

      367KB

      MD5

      5001a027bbd2b1ed054f6cb40ebc7121

      SHA1

      6811a19f357ba494da5d4f3bb8d0f45b9bd35022

      SHA256

      aa78a5ff15dc36f6fb7aaa764722f463f2c9f3724ce1df1e8f3e5638620838ae

      SHA512

      2af020f707d1542a76e7ca581f0531331dcd2553f618cad9a44ccc2830652a6fece526ba35f09bb5e989a93e79c425dc727377eaff21aed8e033f95f981af287

    • C:\windows\hosts.exe

      Filesize

      367KB

      MD5

      5001a027bbd2b1ed054f6cb40ebc7121

      SHA1

      6811a19f357ba494da5d4f3bb8d0f45b9bd35022

      SHA256

      aa78a5ff15dc36f6fb7aaa764722f463f2c9f3724ce1df1e8f3e5638620838ae

      SHA512

      2af020f707d1542a76e7ca581f0531331dcd2553f618cad9a44ccc2830652a6fece526ba35f09bb5e989a93e79c425dc727377eaff21aed8e033f95f981af287

    • \??\c:\windows\W_X_C.bat

      Filesize

      336B

      MD5

      4db9f8b6175722b62ececeeeba1ce307

      SHA1

      3b3ba8414706e72a6fa19e884a97b87609e11e47

      SHA256

      d2150b9e5a4ce55e140f0ca91c4e300715d42095c8fddf58c77037cdd2cfaf78

      SHA512

      1d6dc274cf7a3dd704f840e6a5ad57ab4c4e35d5f09489aeff520bb797e1c825bac53fc335156fe41e767a46520d031855fe42fe7b175409ebe5e9e986fb9b8b