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Analysis

  • max time kernel
    149s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2024, 19:23

General

  • Target

    1ac7b11f2970f58550848929c1a9899132f5914e0922325a277572318c2ce195.exe

  • Size

    1.7MB

  • MD5

    ce281d3cea993ab4c7a151308a215b99

  • SHA1

    f2bc0362a45665ea5f7eaae0305a65a9dc412539

  • SHA256

    1ac7b11f2970f58550848929c1a9899132f5914e0922325a277572318c2ce195

  • SHA512

    6b535c2355d9d11aca6d74d5d02fea0638668a9e51aca3ca38480bd0719f9a7f84ddda49f767816242d966948d898d1d90ad9efe45a3236f009e9eb7b3ca7b24

  • SSDEEP

    24576:89SQXgnU56Gt4ULYVI8RGwvrK7/ckFLI78cP9:ssnxUA

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Modifies firewall policy service 3 TTPs 8 IoCs
  • UAC bypass 3 TTPs 1 IoCs
  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 6 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 21 IoCs

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

  • Drops file in Program Files directory 5 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 21 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 37 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1ac7b11f2970f58550848929c1a9899132f5914e0922325a277572318c2ce195.exe
    "C:\Users\Admin\AppData\Local\Temp\1ac7b11f2970f58550848929c1a9899132f5914e0922325a277572318c2ce195.exe"
    1⤵
    • Loads dropped DLL
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\JNYVYK.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2836
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center /v UACDisableNotify /t REG_DWORD /d 0 /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2956
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • UAC bypass
        • System Location Discovery: System Language Discovery
        PID:2864
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\BchFU.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3004
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "IeUpdate" /t REG_SZ /d "C:\Program Files (x86)\Internet Explorer\Ieupdate.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2072
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\rzlWB.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2700
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKLM\Software\Microsoft\Windows\CurrentVersion\Run" /v "IeUpdate" /t REG_SZ /d "C:\Program Files (x86)\Internet Explorer\Ieupdate.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:656
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\ZESbl.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3052
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon" /v "Shell" /t REG_SZ /d "Explorer.exe, C:\Program Files (x86)\Internet Explorer\Ieupdate.exe" /f
        3⤵
        • Modifies WinLogon for persistence
        • System Location Discovery: System Language Discovery
        PID:2460
    • C:\Program Files (x86)\Internet Explorer\Ieupdate.exe
      "C:\Program Files (x86)\Internet Explorer\Ieupdate.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1996
      • C:\Program Files (x86)\Internet Explorer\Ieupdate.exe
        "C:\Program Files (x86)\Internet Explorer\Ieupdate.exe"
        3⤵
        • Adds policy Run key to start application
        • Boot or Logon Autostart Execution: Active Setup
        • Executes dropped EXE
        • Adds Run key to start application
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2120
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1256
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2888
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Program Files (x86)\Internet Explorer\Ieupdate.exe" /t REG_SZ /d "C:\Program Files (x86)\Internet Explorer\Ieupdate.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2260
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Program Files (x86)\Internet Explorer\Ieupdate.exe" /t REG_SZ /d "C:\Program Files (x86)\Internet Explorer\Ieupdate.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2372
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2520
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile /v "DoNotAllowExceptions" /t REG_DWORD /d "0" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2016
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\vb6.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\vb6.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2564
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\vb6.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\vb6.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2392
      • C:\Program Files (x86)\Internet Explorer\Ieupdate.exe
        "C:\Program Files (x86)\Internet Explorer\Ieupdate.exe"
        3⤵
        • Executes dropped EXE
        • Checks whether UAC is enabled
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\Internet Explorer\Ieupdate.exe

    Filesize

    1.7MB

    MD5

    f3aa5e0077dfe502aa8eb17768ade2c5

    SHA1

    bdb305fbda796abd266451c83b04a1593ebea80a

    SHA256

    37790d8ed354c51a9391fb3ef46b1bb588eca1d7fa2d40fb20d8774d298a150a

    SHA512

    87333a997fead3dbd1139408d71cded3ac3d94331c151c8a1e37bf353a426901dc05d285968057d5c7b61467a64492a17353ead45004ed3d96692918045a1c89

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

    Filesize

    148B

    MD5

    5d73853d695283e13b412c88ec62984c

    SHA1

    672379399a80a746a8f0d8043bbf98956101d0ca

    SHA256

    59884297b763a498c1f55e4ba57f04597ab37677feb9b686839e7553942cf335

    SHA512

    9043d02ec14cc4869cc8c01562838c11448e2bff42af32ec0a60de76fa8915c3a3a50529ce567c6cb93d2691525b38862257993674c263ed25f6625e370cb2d2

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

    Filesize

    274B

    MD5

    9fcec2a4ee61953e0d4867261a39ea32

    SHA1

    d552acf26d9fcc31a9da82ecce503b16a11e9d2a

    SHA256

    24c5da914d1f429c07ef17dfb7d4d0c90eb060e5a9bd009963fba83b1dd6cae3

    SHA512

    57d8a88138645780357a88658f21f833efa0ba657dd1fefa6458ba930731e1949216b518f26ab995241837bc7e6eff90b46e5cb5ec34364d2f89db09779e5564

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

    Filesize

    181B

    MD5

    09d67635a7674b12183c3f0668ce0cd1

    SHA1

    c3fe2225cc5198a1c33df0342a95528c2e657a6d

    SHA256

    972e896e8649a5d2caf286a0d75db99909587b1d2f4683870207b547c3bc02d9

    SHA512

    b37bdad4fb0e9ab947ea5750337de073907d31156d0d00a1a79392741ced2d1aabf1cc2d92581d7f068266f82cd5b2c10fd7e5c573044e6ce77dea6da6dde321

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

    Filesize

    148B

    MD5

    3d470539cbafa762cdb72a4635ad553d

    SHA1

    4bda3e7de91052dc7d073d8b278ad09ad0d10fa6

    SHA256

    9f0571e3567d7e1849c7bd5dd7b7a2be942ec44aea6c8bb32d415874b7282691

    SHA512

    42b168fabd5ddd175ccd143d4f9338880aad03eb22d07fb8a2e13f387015b9eb1d23307bff3ae370c95a5644c88c5e9f7c8b12b332b595c79be069ffc92a448e

  • memory/1096-93-0x00000000031F0000-0x0000000003399000-memory.dmp

    Filesize

    1.7MB

  • memory/1096-0-0x0000000000400000-0x00000000005A9000-memory.dmp

    Filesize

    1.7MB

  • memory/1096-95-0x0000000000400000-0x00000000005A9000-memory.dmp

    Filesize

    1.7MB

  • memory/1996-118-0x0000000000400000-0x00000000005A9000-memory.dmp

    Filesize

    1.7MB

  • memory/1996-100-0x0000000002A80000-0x0000000002C29000-memory.dmp

    Filesize

    1.7MB

  • memory/1996-107-0x0000000002A80000-0x0000000002C29000-memory.dmp

    Filesize

    1.7MB

  • memory/2120-129-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-127-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-143-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-139-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-137-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-103-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-121-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-135-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-124-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-101-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-106-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-131-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2120-133-0x0000000000400000-0x000000000045C000-memory.dmp

    Filesize

    368KB

  • memory/2932-123-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2932-114-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2932-116-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/2932-117-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB