Analysis

  • max time kernel
    135s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-04-2023 07:02

General

  • Target

    1c0493090eb306714a26e5a30404947c325dc75410adf4ee4ea18ea159302b9a.exe

  • Size

    3.8MB

  • MD5

    d07b7112b39c9eee7eaeba1adb099543

  • SHA1

    1df70cc161540228240e1dde290ac2f5efcfbb0c

  • SHA256

    1c0493090eb306714a26e5a30404947c325dc75410adf4ee4ea18ea159302b9a

  • SHA512

    9f82564e59b49e503de3aad4b7a28a163b3de543a807522c48c5b6f3a005cb38b37e99fab6865e0e064be9c1cf6e2cbec616e7cbb2218ea9f1fbd2015ef9e135

  • SSDEEP

    98304:cCtEONaf1kMdpRfZJDRJwdaUNa8gPgEICG6x098gJ2uCB9Ml:RE0UkkHRJuNawLCG6x+8gJFm

Score
10/10

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

74.201.28.92:3569

Attributes
  • communication_password

    148b191cf4e80b549e1b1a4444f2bdf6

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • Executes dropped EXE 2 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 3 IoCs
  • Program crash 3 IoCs
  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c0493090eb306714a26e5a30404947c325dc75410adf4ee4ea18ea159302b9a.exe
    "C:\Users\Admin\AppData\Local\Temp\1c0493090eb306714a26e5a30404947c325dc75410adf4ee4ea18ea159302b9a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2100
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
      2⤵
        PID:3480
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3480 -s 188
          3⤵
          • Program crash
          PID:1260
      • C:\Windows\SysWOW64\cmd.exe
        "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\tewu"
        2⤵
          PID:1400
        • C:\Windows\SysWOW64\cmd.exe
          "cmd" /c copy "C:\Users\Admin\AppData\Local\Temp\1c0493090eb306714a26e5a30404947c325dc75410adf4ee4ea18ea159302b9a.exe" "C:\Users\Admin\AppData\Roaming\tewu\tewu.exe"
          2⤵
            PID:4880
          • C:\Windows\SysWOW64\cmd.exe
            "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\tewu\tewu.exe'" /f
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2736
            • C:\Windows\SysWOW64\schtasks.exe
              schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\tewu\tewu.exe'" /f
              3⤵
              • Creates scheduled task(s)
              PID:1788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3480 -ip 3480
          1⤵
            PID:1380
          • C:\Users\Admin\AppData\Roaming\tewu\tewu.exe
            C:\Users\Admin\AppData\Roaming\tewu\tewu.exe
            1⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3056
            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
              2⤵
                PID:4656
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -u -p 4656 -s 188
                  3⤵
                  • Program crash
                  PID:3804
              • C:\Windows\SysWOW64\cmd.exe
                "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\tewu"
                2⤵
                  PID:3980
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\tewu\tewu.exe'" /f
                  2⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3964
                  • C:\Windows\SysWOW64\schtasks.exe
                    schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\tewu\tewu.exe'" /f
                    3⤵
                    • Creates scheduled task(s)
                    PID:1160
                • C:\Windows\SysWOW64\cmd.exe
                  "cmd" /c copy "C:\Users\Admin\AppData\Roaming\tewu\tewu.exe" "C:\Users\Admin\AppData\Roaming\tewu\tewu.exe"
                  2⤵
                    PID:4504
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 452 -p 4656 -ip 4656
                  1⤵
                    PID:4752
                  • C:\Users\Admin\AppData\Roaming\tewu\tewu.exe
                    C:\Users\Admin\AppData\Roaming\tewu\tewu.exe
                    1⤵
                    • Executes dropped EXE
                    • Suspicious use of SetThreadContext
                    • Suspicious use of WriteProcessMemory
                    PID:836
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
                      2⤵
                        PID:3976
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 188
                          3⤵
                          • Program crash
                          PID:4212
                      • C:\Windows\SysWOW64\cmd.exe
                        "cmd" /c mkdir "C:\Users\Admin\AppData\Roaming\tewu"
                        2⤵
                          PID:3812
                        • C:\Windows\SysWOW64\cmd.exe
                          "cmd" /c schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\tewu\tewu.exe'" /f
                          2⤵
                            PID:1044
                            • C:\Windows\SysWOW64\schtasks.exe
                              schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\tewu\tewu.exe'" /f
                              3⤵
                              • Creates scheduled task(s)
                              PID:4684
                          • C:\Windows\SysWOW64\cmd.exe
                            "cmd" /c copy "C:\Users\Admin\AppData\Roaming\tewu\tewu.exe" "C:\Users\Admin\AppData\Roaming\tewu\tewu.exe"
                            2⤵
                              PID:4204
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 472 -p 3976 -ip 3976
                            1⤵
                              PID:4956

                            Network

                            MITRE ATT&CK Enterprise v6

                            Replay Monitor

                            Loading Replay Monitor...

                            Downloads

                            • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\tewu.exe.log

                              Filesize

                              517B

                              MD5

                              13f84b613e6a4dd2d82f7c44b2295a04

                              SHA1

                              f9e07213c2825ecb28e732f3e66e07625747c4b3

                              SHA256

                              d9c52c1eb0b6a04d3495ab971da2c6d01b0964a8b04fd173bfb351820b255c33

                              SHA512

                              3a2aca3d21bff43e36de5d9c97b0d1a9c972ee5ab0d9322a3615c0820042a7c9c4c0f2d41522fb4f2347b9a1679b63c91dcf5dc75444ba64c736e2cdcf10ee7d

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

                              Filesize

                              3.8MB

                              MD5

                              d07b7112b39c9eee7eaeba1adb099543

                              SHA1

                              1df70cc161540228240e1dde290ac2f5efcfbb0c

                              SHA256

                              1c0493090eb306714a26e5a30404947c325dc75410adf4ee4ea18ea159302b9a

                              SHA512

                              9f82564e59b49e503de3aad4b7a28a163b3de543a807522c48c5b6f3a005cb38b37e99fab6865e0e064be9c1cf6e2cbec616e7cbb2218ea9f1fbd2015ef9e135

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

                              Filesize

                              3.8MB

                              MD5

                              d07b7112b39c9eee7eaeba1adb099543

                              SHA1

                              1df70cc161540228240e1dde290ac2f5efcfbb0c

                              SHA256

                              1c0493090eb306714a26e5a30404947c325dc75410adf4ee4ea18ea159302b9a

                              SHA512

                              9f82564e59b49e503de3aad4b7a28a163b3de543a807522c48c5b6f3a005cb38b37e99fab6865e0e064be9c1cf6e2cbec616e7cbb2218ea9f1fbd2015ef9e135

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

                              Filesize

                              3.8MB

                              MD5

                              d07b7112b39c9eee7eaeba1adb099543

                              SHA1

                              1df70cc161540228240e1dde290ac2f5efcfbb0c

                              SHA256

                              1c0493090eb306714a26e5a30404947c325dc75410adf4ee4ea18ea159302b9a

                              SHA512

                              9f82564e59b49e503de3aad4b7a28a163b3de543a807522c48c5b6f3a005cb38b37e99fab6865e0e064be9c1cf6e2cbec616e7cbb2218ea9f1fbd2015ef9e135

                            • memory/836-164-0x0000000005C40000-0x0000000005C50000-memory.dmp

                              Filesize

                              64KB

                            • memory/2100-134-0x0000000005780000-0x00000000057E6000-memory.dmp

                              Filesize

                              408KB

                            • memory/2100-133-0x0000000000A70000-0x0000000000E44000-memory.dmp

                              Filesize

                              3.8MB

                            • memory/3056-151-0x00000000058C0000-0x00000000058D0000-memory.dmp

                              Filesize

                              64KB

                            • memory/3480-141-0x0000000000FA0000-0x000000000136E000-memory.dmp

                              Filesize

                              3.8MB

                            • memory/3480-145-0x0000000000FA0000-0x000000000136E000-memory.dmp

                              Filesize

                              3.8MB

                            • memory/3480-136-0x0000000000FA0000-0x000000000136E000-memory.dmp

                              Filesize

                              3.8MB

                            • memory/3976-174-0x0000000000D00000-0x00000000010CE000-memory.dmp

                              Filesize

                              3.8MB

                            • memory/4656-161-0x0000000000D00000-0x00000000010CE000-memory.dmp

                              Filesize

                              3.8MB

                            • memory/4656-156-0x0000000000D00000-0x00000000010CE000-memory.dmp

                              Filesize

                              3.8MB