Resubmissions

01-04-2023 14:25

230401-rrjnqabh7v 8

01-04-2023 14:24

230401-rqqqmsbh6z 8

Analysis

  • max time kernel
    45s
  • max time network
    46s
  • 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 14:24

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 3 IoCs

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

  • Executes dropped EXE 7 IoCs
  • UPX packed file 11 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.

  • Gathers network information 2 TTPs 1 IoCs

    Uses commandline utility to view network configuration.

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 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:5060
    • 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:3824
    • C:\Users\Admin\AppData\Local\Temp\AV2.EXE
      "C:\Users\Admin\AppData\Local\Temp\AV2.EXE"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4356
      • C:\bN17766CjJcJ17766\bN17766CjJcJ17766.exe
        "\bN17766CjJcJ17766\bN17766CjJcJ17766.exe" "C:\Users\Admin\AppData\Local\Temp\AV2.EXE"
        3⤵
        • Executes dropped EXE
        PID:4336
    • 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:232
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\EN.EXE > nul
        3⤵
          PID:3196
      • 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:620
      • 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:5096
        • C:\Windows\SysWOW64\vcamp140W.exe
          C:\Windows\SysWOW64\vcamp140W.exe
          3⤵
          • Drops file in Drivers directory
          • Checks computer location settings
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:4244
          • C:\Windows\SysWOW64\ipconfig.exe
            "C:\Windows\system32\ipconfig.exe" /flushdns
            4⤵
            • Gathers network information
            PID:2396
        • C:\Windows\SysWOW64\cmd.exe
          /c C:\Users\Admin\AppData\Local\Temp\~unins8765.bat "C:\Users\Admin\AppData\Local\Temp\DB.EXE"
          3⤵
            PID:2100
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4356 -ip 4356
        1⤵
          PID:508
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -pss -s 480 -p 4972 -ip 4972
          1⤵
            PID:1372
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -pss -s 476 -p 3788 -ip 3788
            1⤵
              PID:4272
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -pss -s 420 -p 3288 -ip 3288
              1⤵
                PID:424

              Network

              MITRE ATT&CK Matrix ATT&CK v6

              Execution

              Command-Line Interface

              1
              T1059

              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

              5
              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
                Filesize

                208B

                MD5

                31c2b78c8adacdc686530a6dc851f7bb

                SHA1

                a99f234c3c1b4942f49559f8f13806d1a5a90960

                SHA256

                ba4bcd913e0bd2b1e8980c0b2b917e4789fc1a9147d72b284b7be9add09a7b96

                SHA512

                6276a6be06603919d0ef5b1bf59322f88195e0bd2c084010327c45c0e896962f73c278264d6919697eba1820bfd6ab218c2191fffa117e25d420bcb34bc57cac

              • 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:\Users\Admin\AppData\Local\Temp\~unins8765.bat
                Filesize

                49B

                MD5

                9e0a2f5ab30517809b95a1ff1dd98c53

                SHA1

                5c1eefdf10e67d1e9216e2e3f5e92352d583c9ce

                SHA256

                97ac9fee75a1f7b63b3115e9c4fb9dda80b1caba26d2fb51325670dee261fe32

                SHA512

                e959cc1fd48fb1cccf135a697924c775a3812bab211fc7f9b00c5a9d617261d84c5d6f7cb548774c1e8f46811b06ca39c5603d0e10cbcb7b805f9abbe49b9b42

              • C:\Windows\SysWOW64\vcamp140W.exe
                Filesize

                101KB

                MD5

                06c86c6ce7ccfd58c431f9e7233510e9

                SHA1

                5dc4ede70ab7c34e02aa4b9a693c7b0a3ab5b8ab

                SHA256

                b7f5146e4090f222ca6b2b7babe20140d64b225552df5b6ca3508b86d0ccbaa7

                SHA512

                f9a156a058410c5255654990412b8bc322775ce2d5cfe3c70c6bae48e6b5262c0b8c7cc538d7255f9e4f4cae1560aa12d67177ff8aaadff6ea1fc63c673a840c

              • C:\Windows\SysWOW64\vcamp140W.exe
                Filesize

                101KB

                MD5

                06c86c6ce7ccfd58c431f9e7233510e9

                SHA1

                5dc4ede70ab7c34e02aa4b9a693c7b0a3ab5b8ab

                SHA256

                b7f5146e4090f222ca6b2b7babe20140d64b225552df5b6ca3508b86d0ccbaa7

                SHA512

                f9a156a058410c5255654990412b8bc322775ce2d5cfe3c70c6bae48e6b5262c0b8c7cc538d7255f9e4f4cae1560aa12d67177ff8aaadff6ea1fc63c673a840c

              • C:\bN17766CjJcJ17766\bN17766CjJcJ17766.exe
                Filesize

                368KB

                MD5

                797dc275051a20bc6be0bf4b4583e9e1

                SHA1

                c0fae999fe969e4c386d1b4f2635f8d760eefb3b

                SHA256

                bbf93705ae3e06dbad995fc5e9463db6f15f20868f14f6c73825cb9ebeaf9509

                SHA512

                eb3b0505fe1a899b93b11f9f772bbaa81c682a11e26c10b17848270dbaf2a9271e2a3a1d4b6dd22563d29dcf75b232e660c2279ec229d935122f18877795be02

              • memory/232-193-0x0000000000400000-0x000000000040A000-memory.dmp
                Filesize

                40KB

              • memory/3824-213-0x00000000011A0000-0x00000000011B0000-memory.dmp
                Filesize

                64KB

              • memory/3824-194-0x00000000011A0000-0x00000000011B0000-memory.dmp
                Filesize

                64KB

              • memory/4356-226-0x0000000000740000-0x0000000000741000-memory.dmp
                Filesize

                4KB

              • memory/4356-229-0x00000000005E0000-0x00000000005E3000-memory.dmp
                Filesize

                12KB

              • memory/5096-196-0x00000000005B0000-0x00000000005B1000-memory.dmp
                Filesize

                4KB

              • memory/5096-192-0x00000000001C0000-0x00000000001F1000-memory.dmp
                Filesize

                196KB

              • memory/5096-190-0x0000000000400000-0x0000000000445000-memory.dmp
                Filesize

                276KB

              • memory/5096-183-0x0000000000720000-0x00000000007B3000-memory.dmp
                Filesize

                588KB

              • memory/5096-191-0x0000000000720000-0x00000000007B3000-memory.dmp
                Filesize

                588KB

              • memory/5096-189-0x0000000000720000-0x00000000007B3000-memory.dmp
                Filesize

                588KB