Analysis

  • max time kernel
    148s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2024 23:14

General

  • Target

    45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe

  • Size

    1.8MB

  • MD5

    cd84709fa0e9c1533e765d22798cb4f4

  • SHA1

    2028106423757e2f2835a76476fb576d05d14e84

  • SHA256

    45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec

  • SHA512

    7e863e2da43665192f4d3d1849f7427df17a535fd59983af3ecde606a01e27b5063ca3128a920b71a85f88e53b23b47b949d92c009888b4f8728db7d79e45cf1

  • SSDEEP

    49152:ALIUXQgBiI6i2KFU0yBfM7a9QDosGeo403e0CpcKYGIDlWIwRBOn5PvGYKMf/1ZE:cIUXQgBiI6i2KFU0yBfM7a9QDosGeo4J

Malware Config

Signatures

  • Modifies firewall policy service 3 TTPs 8 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 10 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 17 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 14 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 35 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 57 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe
    "C:\Users\Admin\AppData\Local\Temp\45aee6d54e59252d06151ffeae4a32b085cc78e1ee08bd98fc1129c6fdedccec.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2076
    • C:\Users\Admin\AppData\Local\Temp\MekLw.exe
      "C:\Users\Admin\AppData\Local\Temp\MekLw.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2432
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\zJYgH.bat" "
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2780
      • C:\Windows\SysWOW64\reg.exe
        REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "csrs" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe" /f
        3⤵
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        PID:2336
    • C:\Users\Admin\AppData\Roaming\csrs.exe
      "C:\Users\Admin\AppData\Roaming\csrs.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:1744
      • C:\Users\Admin\AppData\Roaming\csrs.exe
        C:\Users\Admin\AppData\Roaming\csrs.exe
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2820
        • 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
          • Suspicious use of WriteProcessMemory
          PID:1124
          • 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:1932
        • 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\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2808
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\csrs.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\csrs.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:1732
        • 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
          • Suspicious use of WriteProcessMemory
          PID:2640
          • 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:2600
        • 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\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2648
          • C:\Windows\SysWOW64\reg.exe
            REG ADD HKLM\System\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List /v "C:\Users\Admin\AppData\Roaming\svhost32.exe" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\svhost32.exe:*:Enabled:Windows Messanger" /f
            5⤵
            • Modifies firewall policy service
            • System Location Discovery: System Language Discovery
            • Modifies registry key
            PID:2704

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    130B

    MD5

    34a635bb69f9dc2d8e8ceba2f6b25308

    SHA1

    66bbd6b4eb975af0a799c6be7aaed6917f5df10c

    SHA256

    eb18b0e443ffb00db0eb4438c0d3ec49cf67c3b7cbc9da8e25c60298c970a59a

    SHA512

    ae355a265391afe02a37d82ffb0df6664788dc4aee975678aeb524ff47f889d1e5ecab42b073093d71494c9868276dc9794d4bebce4c967d866b189c136a9545

  • C:\Users\Admin\AppData\Roaming\csrs.exe

    Filesize

    1.8MB

    MD5

    f0000f5f2edc2da52d647ad03c44e8ed

    SHA1

    ac92d6d1bd234666e5e1e1ad56f8a1490a3e15fe

    SHA256

    ed765711d6029a7d5fbcfd7a3a2cffbd69c6606fb93b6b17b73fa3d8fbae52c8

    SHA512

    ca0c43df59f5d11b699259f0e0caf43db350c18869f46e2ea277fdf9be50d926cca47c51ab137536b762944f10d6dc765b068718c14deff4e33f94d84b0ec77e

  • \Users\Admin\AppData\Local\Temp\MekLw.exe

    Filesize

    12KB

    MD5

    466773bfcbd01059584cdae36e3c281c

    SHA1

    81e68615ef27cf363d6fe96582433c8a7ce8043b

    SHA256

    21f0910a1d71dfc63744474b2ba6b8248d893226576ea48791dc0cef7dd52105

    SHA512

    1088e7180a7d4ed717307c03884aebd945c5f78ffd6c4a4d7e84e504dc2da0434fe4173c63f1afd5a57e83e1783b3359ce123e85bb62699fb663bc9b1c02129f

  • memory/2076-0-0x0000000000400000-0x00000000005D9000-memory.dmp

    Filesize

    1.8MB

  • memory/2076-8-0x0000000002B60000-0x0000000002B77000-memory.dmp

    Filesize

    92KB

  • memory/2076-12-0x0000000002B60000-0x0000000002B77000-memory.dmp

    Filesize

    92KB

  • memory/2076-19-0x0000000002B70000-0x0000000002B87000-memory.dmp

    Filesize

    92KB

  • memory/2432-78-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/2820-70-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-86-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-72-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-69-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-66-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-79-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-83-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-71-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-88-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-90-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-93-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-97-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-102-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB

  • memory/2820-107-0x0000000000400000-0x000000000045D000-memory.dmp

    Filesize

    372KB