Analysis

  • max time kernel
    26s
  • max time network
    23s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-04-2023 14:30

General

  • Target

    Endermanch@Ana.exe

  • Size

    2.1MB

  • MD5

    f571faca510bffe809c76c1828d44523

  • SHA1

    7a3ca1660f0a513316b8cd5496ac7dbe82f0e0c2

  • SHA256

    117d7af0deb40b3fe532bb6cbe374884fa55ed7cfe053fe698720cdccb5a59cb

  • SHA512

    a08bca2fb1387cc70b737520d566c7117aa3fdb9a52f5dbb0bb7be44630da7977882d8c808cbee843c8a180777b4ac5819e8bafda6b2c883e380dc7fb5358a51

  • SSDEEP

    49152:OwVYlfBUDiZx8Fa/Q0NuB3btlnCItWNSwoy:OxPUDQmso0NuBZlnCItM

Malware Config

Signatures

  • Adds policy Run key to start application 2 TTPs 2 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Checks BIOS information in registry 2 TTPs 1 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 6 IoCs
  • UPX packed file 12 IoCs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Endermanch@Ana.exe
    "C:\Users\Admin\AppData\Local\Temp\Endermanch@Ana.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:5012
    • C:\Users\Admin\AppData\Local\Temp\AV.EXE
      "C:\Users\Admin\AppData\Local\Temp\AV.EXE"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1064
    • C:\Users\Admin\AppData\Local\Temp\AV2.EXE
      "C:\Users\Admin\AppData\Local\Temp\AV2.EXE"
      2⤵
      • Executes dropped EXE
      PID:4172
    • C:\Users\Admin\AppData\Local\Temp\DB.EXE
      "C:\Users\Admin\AppData\Local\Temp\DB.EXE"
      2⤵
      • Adds policy Run key to start application
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1480
      • C:\Windows\SysWOW64\dcomcnfgl.exe
        C:\Windows\SysWOW64\dcomcnfgl.exe
        3⤵
        • Drops file in Drivers directory
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        PID:3384
      • C:\Windows\SysWOW64\cmd.exe
        /c C:\Users\Admin\AppData\Local\Temp\~unins2218.bat "C:\Users\Admin\AppData\Local\Temp\DB.EXE"
        3⤵
          PID:4612
      • C:\Users\Admin\AppData\Local\Temp\EN.EXE
        "C:\Users\Admin\AppData\Local\Temp\EN.EXE"
        2⤵
        • Checks computer location settings
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1892
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\EN.EXE > nul
          3⤵
            PID:1816
        • C:\Users\Admin\AppData\Local\Temp\SB.EXE
          "C:\Users\Admin\AppData\Local\Temp\SB.EXE"
          2⤵
          • Executes dropped EXE
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of AdjustPrivilegeToken
          PID:2356

      Network

      MITRE ATT&CK Matrix ATT&CK v6

      Persistence

      Registry Run Keys / Startup Folder

      1
      T1060

      Bootkit

      1
      T1067

      Defense Evasion

      Modify Registry

      2
      T1112

      Install Root Certificate

      1
      T1130

      Discovery

      Query Registry

      3
      T1012

      System Information Discovery

      4
      T1082

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\AV.EXE
        Filesize

        1.1MB

        MD5

        f284568010505119f479617a2e7dc189

        SHA1

        e23707625cce0035e3c1d2255af1ed326583a1ea

        SHA256

        26c8f13ea8dc17443a9fa005610537cb6700aebaf748e747e9278d504e416eb1

        SHA512

        ebe96e667dfde547c5a450b97cd7534b977f4073c7f4cbc123a0e00baaefeb3be725c1cafbfb5bb040b3359267954cd1b4e2094ef71fc273732016ee822064bf

      • C:\Users\Admin\AppData\Local\Temp\AV.EXE
        Filesize

        1.1MB

        MD5

        f284568010505119f479617a2e7dc189

        SHA1

        e23707625cce0035e3c1d2255af1ed326583a1ea

        SHA256

        26c8f13ea8dc17443a9fa005610537cb6700aebaf748e747e9278d504e416eb1

        SHA512

        ebe96e667dfde547c5a450b97cd7534b977f4073c7f4cbc123a0e00baaefeb3be725c1cafbfb5bb040b3359267954cd1b4e2094ef71fc273732016ee822064bf

      • C:\Users\Admin\AppData\Local\Temp\AV.EXE
        Filesize

        1.1MB

        MD5

        f284568010505119f479617a2e7dc189

        SHA1

        e23707625cce0035e3c1d2255af1ed326583a1ea

        SHA256

        26c8f13ea8dc17443a9fa005610537cb6700aebaf748e747e9278d504e416eb1

        SHA512

        ebe96e667dfde547c5a450b97cd7534b977f4073c7f4cbc123a0e00baaefeb3be725c1cafbfb5bb040b3359267954cd1b4e2094ef71fc273732016ee822064bf

      • C:\Users\Admin\AppData\Local\Temp\AV2.EXE
        Filesize

        368KB

        MD5

        014578edb7da99e5ba8dd84f5d26dfd5

        SHA1

        df56d701165a480e925a153856cbc3ab799c5a04

        SHA256

        4ce5e8b510895abb204f97e883d8cbaacc29ccef0844d9ae81f8666f234b0529

        SHA512

        bd5159af96d83fc7528956c5b1bd6f93847db18faa0680c6041f87bbebef5e3ba2de1f185d77ff28b8d7d78ec4f7bd54f48b37a16da39f43314ef022b4a36068

      • C:\Users\Admin\AppData\Local\Temp\AV2.EXE
        Filesize

        368KB

        MD5

        014578edb7da99e5ba8dd84f5d26dfd5

        SHA1

        df56d701165a480e925a153856cbc3ab799c5a04

        SHA256

        4ce5e8b510895abb204f97e883d8cbaacc29ccef0844d9ae81f8666f234b0529

        SHA512

        bd5159af96d83fc7528956c5b1bd6f93847db18faa0680c6041f87bbebef5e3ba2de1f185d77ff28b8d7d78ec4f7bd54f48b37a16da39f43314ef022b4a36068

      • C:\Users\Admin\AppData\Local\Temp\AV2.EXE
        Filesize

        368KB

        MD5

        014578edb7da99e5ba8dd84f5d26dfd5

        SHA1

        df56d701165a480e925a153856cbc3ab799c5a04

        SHA256

        4ce5e8b510895abb204f97e883d8cbaacc29ccef0844d9ae81f8666f234b0529

        SHA512

        bd5159af96d83fc7528956c5b1bd6f93847db18faa0680c6041f87bbebef5e3ba2de1f185d77ff28b8d7d78ec4f7bd54f48b37a16da39f43314ef022b4a36068

      • C:\Users\Admin\AppData\Local\Temp\DB.EXE
        Filesize

        243KB

        MD5

        c6746a62feafcb4fca301f606f7101fa

        SHA1

        e09cd1382f9ceec027083b40e35f5f3d184e485f

        SHA256

        b5a255d0454853c8afc0b321e1d86dca22c3dbefb88e5d385d2d72f9bc0109e6

        SHA512

        ee5dfa08c86bf1524666f0851c729970dbf0b397db9595a2bae01516299344edb68123e976592a83e492f2982fafe8d350ba2d41368eb4ecf4e6fe12af8f5642

      • C:\Users\Admin\AppData\Local\Temp\DB.EXE
        Filesize

        243KB

        MD5

        c6746a62feafcb4fca301f606f7101fa

        SHA1

        e09cd1382f9ceec027083b40e35f5f3d184e485f

        SHA256

        b5a255d0454853c8afc0b321e1d86dca22c3dbefb88e5d385d2d72f9bc0109e6

        SHA512

        ee5dfa08c86bf1524666f0851c729970dbf0b397db9595a2bae01516299344edb68123e976592a83e492f2982fafe8d350ba2d41368eb4ecf4e6fe12af8f5642

      • C:\Users\Admin\AppData\Local\Temp\DB.EXE
        Filesize

        243KB

        MD5

        c6746a62feafcb4fca301f606f7101fa

        SHA1

        e09cd1382f9ceec027083b40e35f5f3d184e485f

        SHA256

        b5a255d0454853c8afc0b321e1d86dca22c3dbefb88e5d385d2d72f9bc0109e6

        SHA512

        ee5dfa08c86bf1524666f0851c729970dbf0b397db9595a2bae01516299344edb68123e976592a83e492f2982fafe8d350ba2d41368eb4ecf4e6fe12af8f5642

      • C:\Users\Admin\AppData\Local\Temp\EN.EXE
        Filesize

        6KB

        MD5

        621f2279f69686e8547e476b642b6c46

        SHA1

        66f486cd566f86ab16015fe74f50d4515decce88

        SHA256

        c17a18cf2c243303b8a6688aad83b3e6e9b727fcd89f69065785ef7f1a2a3e38

        SHA512

        068402b02f1056b722f21b0a354b038f094d02e4a066b332553cd6b36e3640e8f35aa0499a2b057c566718c3593d3cea6bbabd961e04f0a001fd45d8be8e1c4e

      • C:\Users\Admin\AppData\Local\Temp\EN.EXE
        Filesize

        6KB

        MD5

        621f2279f69686e8547e476b642b6c46

        SHA1

        66f486cd566f86ab16015fe74f50d4515decce88

        SHA256

        c17a18cf2c243303b8a6688aad83b3e6e9b727fcd89f69065785ef7f1a2a3e38

        SHA512

        068402b02f1056b722f21b0a354b038f094d02e4a066b332553cd6b36e3640e8f35aa0499a2b057c566718c3593d3cea6bbabd961e04f0a001fd45d8be8e1c4e

      • C:\Users\Admin\AppData\Local\Temp\EN.EXE
        Filesize

        6KB

        MD5

        621f2279f69686e8547e476b642b6c46

        SHA1

        66f486cd566f86ab16015fe74f50d4515decce88

        SHA256

        c17a18cf2c243303b8a6688aad83b3e6e9b727fcd89f69065785ef7f1a2a3e38

        SHA512

        068402b02f1056b722f21b0a354b038f094d02e4a066b332553cd6b36e3640e8f35aa0499a2b057c566718c3593d3cea6bbabd961e04f0a001fd45d8be8e1c4e

      • C:\Users\Admin\AppData\Local\Temp\GB.EXE
        Filesize

        149KB

        MD5

        fe731b4c6684d643eb5b55613ef9ed31

        SHA1

        cfafe2a14f5413278304920154eb467f7c103c80

        SHA256

        e7953daad7a68f8634ded31a21a31f0c2aa394ca9232e2f980321f7b69176496

        SHA512

        f7756d69138df6d3b0ffa47bdf274e5fd8aab4fff9d68abe403728c8497ac58e0f3d28d41710de715f57b7a2b5daa2dd7e04450f19c6d013a08f543bd6fc9c2e

      • C:\Users\Admin\AppData\Local\Temp\SB.EXE
        Filesize

        224KB

        MD5

        9252e1be9776af202d6ad5c093637022

        SHA1

        6cc686d837cd633d9c2e8bc1eaba5fc364bf71d8

        SHA256

        ce822ff86e584f15b6abd14c61453bd3b481d4ec3fdeb961787fceb52acd8bd6

        SHA512

        98b1b3ce4d16d36f738478c6cf41e8f4a57d3a5ecfa8999d45592f79a469d8af8554bf4d5db34cb79cec71ce103f4fde1b41bd3cce30714f803e432e53da71ea

      • C:\Users\Admin\AppData\Local\Temp\SB.EXE
        Filesize

        224KB

        MD5

        9252e1be9776af202d6ad5c093637022

        SHA1

        6cc686d837cd633d9c2e8bc1eaba5fc364bf71d8

        SHA256

        ce822ff86e584f15b6abd14c61453bd3b481d4ec3fdeb961787fceb52acd8bd6

        SHA512

        98b1b3ce4d16d36f738478c6cf41e8f4a57d3a5ecfa8999d45592f79a469d8af8554bf4d5db34cb79cec71ce103f4fde1b41bd3cce30714f803e432e53da71ea

      • C:\Users\Admin\AppData\Local\Temp\SB.EXE
        Filesize

        224KB

        MD5

        9252e1be9776af202d6ad5c093637022

        SHA1

        6cc686d837cd633d9c2e8bc1eaba5fc364bf71d8

        SHA256

        ce822ff86e584f15b6abd14c61453bd3b481d4ec3fdeb961787fceb52acd8bd6

        SHA512

        98b1b3ce4d16d36f738478c6cf41e8f4a57d3a5ecfa8999d45592f79a469d8af8554bf4d5db34cb79cec71ce103f4fde1b41bd3cce30714f803e432e53da71ea

      • C:\Users\Admin\AppData\Local\Temp\tsa.crt
        Filesize

        1010B

        MD5

        6e630504be525e953debd0ce831b9aa0

        SHA1

        edfa47b3edf98af94954b5b0850286a324608503

        SHA256

        2563fe2f793f119a1bae5cca6eab9d8c20409aa1f1e0db341c623e1251244ef5

        SHA512

        bbcf285309a4d5605e19513c77ef077a4c451cbef04e3cbdfec6d15cc157a9800a7ff6f70964b0452ddb939ff50766e887904eda06a9999fdedf5b2e8776ebd2

      • C:\Windows\SysWOW64\dcomcnfgl.exe
        Filesize

        101KB

        MD5

        a9f833b6faf29634bf8168220e8bb625

        SHA1

        2265efba215cd7f102f0c641e935464f4006eb52

        SHA256

        53149bb161058e107af5ef9c6a5ae2858014063777bf52905c9f3a9ca2e00083

        SHA512

        763ad46aa0872a56566d15b9bc0e340dff961fb304fa2971dd4fb704c643a41a234713b4abd859f1fcfccfddedabcbfa0889ad2e2791d2ac5f44ff4a8460e9d5

      • C:\Windows\SysWOW64\dcomcnfgl.exe
        Filesize

        101KB

        MD5

        a9f833b6faf29634bf8168220e8bb625

        SHA1

        2265efba215cd7f102f0c641e935464f4006eb52

        SHA256

        53149bb161058e107af5ef9c6a5ae2858014063777bf52905c9f3a9ca2e00083

        SHA512

        763ad46aa0872a56566d15b9bc0e340dff961fb304fa2971dd4fb704c643a41a234713b4abd859f1fcfccfddedabcbfa0889ad2e2791d2ac5f44ff4a8460e9d5

      • memory/1064-219-0x0000000001AD0000-0x0000000001AE0000-memory.dmp
        Filesize

        64KB

      • memory/1064-197-0x0000000001AD0000-0x0000000001AE0000-memory.dmp
        Filesize

        64KB

      • memory/1480-195-0x00000000001C0000-0x00000000001F1000-memory.dmp
        Filesize

        196KB

      • memory/1480-198-0x00000000006A0000-0x00000000006A1000-memory.dmp
        Filesize

        4KB

      • memory/1480-177-0x0000000000600000-0x0000000000693000-memory.dmp
        Filesize

        588KB

      • memory/1480-190-0x0000000000600000-0x0000000000693000-memory.dmp
        Filesize

        588KB

      • memory/1480-189-0x0000000000600000-0x0000000000693000-memory.dmp
        Filesize

        588KB

      • memory/1480-194-0x0000000000400000-0x0000000000445000-memory.dmp
        Filesize

        276KB

      • memory/1892-196-0x0000000000400000-0x000000000040A000-memory.dmp
        Filesize

        40KB

      • memory/2356-202-0x0000000000400000-0x0000000000464000-memory.dmp
        Filesize

        400KB

      • memory/4172-225-0x0000000000400000-0x00000000004C3000-memory.dmp
        Filesize

        780KB

      • memory/4172-226-0x0000000000550000-0x0000000000553000-memory.dmp
        Filesize

        12KB

      • memory/4172-227-0x0000000000560000-0x0000000000561000-memory.dmp
        Filesize

        4KB