Analysis

  • max time kernel
    140s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-01-2024 16:14

General

  • Target

    LockBit-Black-Builder-main/LockBit3Builder/Build.bat

  • Size

    733B

  • MD5

    1905cc9973206fea5050b737f9303fb4

  • SHA1

    497524177d9478a4b5dca3e73cc230be6abf4ce0

  • SHA256

    e2f5b93040d57de6251d16256bcd04aa8eb337bde87308e602f01070efd345fb

  • SHA512

    95bae9406d01083f6fe6916ecf8e889afe20ff5863070f1787dc7a60d2d1d5af2cf3fd481a3c4fb531f16dd2cb7a685002aaac1dc907cf189c19c60f2816dd76

Score
1/10

Malware Config

Signatures

  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4612
    • C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\keygen.exe
      keygen -path C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build -pubkey pub.key -privkey priv.key
      2⤵
        PID:4828
      • C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\builder.exe
        builder -type dec -privkey C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\priv.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3Decryptor.exe
        2⤵
          PID:532
        • C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\builder.exe
          builder -type enc -exe -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3.exe
          2⤵
            PID:4376
          • C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\builder.exe
            builder -type enc -exe -pass -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3_pass.exe
            2⤵
              PID:1720
            • C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\builder.exe
              builder -type enc -dll -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3_Rundll32.dll
              2⤵
                PID:2928
              • C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\builder.exe
                builder -type enc -dll -pass -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3_Rundll32_pass.dll
                2⤵
                  PID:3184
                • C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\builder.exe
                  builder -type enc -ref -pubkey C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\LB3_ReflectiveDll_DllMain.dll
                  2⤵
                    PID:4920

                Network

                MITRE ATT&CK Matrix

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\priv.key

                  Filesize

                  344B

                  MD5

                  ff9a992cbcc3a474b4c4f741e919a488

                  SHA1

                  65ab7459d1c198b4b3426097f141827e22c555a5

                  SHA256

                  3b08ac1546ce3cfcd78b138eaf07b9d1ede7a9fadba33c3abbdd57ad6573aaf1

                  SHA512

                  d3ce0afeaecedc399cb0b431ca4edc0f34d4545e75910bba56fa6af3f2dad1e8421de00344d6236799efa8c6f6dadb0831fa54c4c70306b77b1ea3196be35929

                • C:\Users\Admin\AppData\Local\Temp\LockBit-Black-Builder-main\LockBit3Builder\Build\pub.key

                  Filesize

                  344B

                  MD5

                  8430b8276b589236f5a97d30efcd2ab2

                  SHA1

                  333c377d245b975b2f221c4b786482a8ae09ad74

                  SHA256

                  a41e9af163c6ca8770be997b7c6265520ee4fb46982d5ee8f90980196ed07d23

                  SHA512

                  146defd0043e6be8ad2d4ffb473da4754f90eb4892ae77295115f049198c94ede38bcb5af6d4164a2df184176321459940a91593068bf8a84846e90d39cba3a5