Overview

overview

10

Static

static

10

Build.bat

windows7-x64

1

Build.bat

windows10-2004-x64

1

builder.exe

windows7-x64

1

builder.exe

windows10-2004-x64

1

keygen.exe

windows7-x64

1

keygen.exe

windows10-2004-x64

1

Analysis

  • max time kernel
    78s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-09-2022 08:54

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General

  • Target

    Build.bat

  • Size

    741B

  • MD5

    4e46e28b2e61643f6af70a8b19e5cb1f

  • SHA1

    804a1d0c4a280b18e778e4b97f85562fa6d5a4e6

  • SHA256

    8e83a1727696ced618289f79674b97305d88beeeabf46bd25fc77ac53c1ae339

  • SHA512

    009b17b515ff0ea612e54d8751eef07f1e2b54db07e6cd69a95e7adf775f3c79a0ea91bff2fe593f2314807fdc00c75d80f1807b7dbe90f0fcf94607e675047b

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\Build.bat"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Users\Admin\AppData\Local\Temp\keygen.exe
      keygen -path C:\Users\Admin\AppData\Local\Temp\Build -pubkey pub.key -privkey priv.key
      2⤵
        PID:4040
      • C:\Users\Admin\AppData\Local\Temp\builder.exe
        builder -type dec -privkey C:\Users\Admin\AppData\Local\Temp\Build\priv.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3Decryptor.exe
        2⤵
          PID:3344
        • C:\Users\Admin\AppData\Local\Temp\builder.exe
          builder -type enc -exe -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3.exe
          2⤵
            PID:4068
          • C:\Users\Admin\AppData\Local\Temp\builder.exe
            builder -type enc -exe -pass -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_pass.exe
            2⤵
              PID:4816
            • C:\Users\Admin\AppData\Local\Temp\builder.exe
              builder -type enc -dll -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_Rundll32.dll
              2⤵
                PID:4916
              • C:\Users\Admin\AppData\Local\Temp\builder.exe
                builder -type enc -dll -pass -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_Rundll32_pass.dll
                2⤵
                  PID:4872
                • C:\Users\Admin\AppData\Local\Temp\builder.exe
                  builder -type enc -ref -pubkey C:\Users\Admin\AppData\Local\Temp\Build\pub.key -config config.json -ofile C:\Users\Admin\AppData\Local\Temp\Build\LB3_ReflectiveDll_DllMain.dll
                  2⤵
                    PID:5080

                Network

                MITRE ATT&CK Matrix

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Temp\Build\priv.key
                  Filesize

                  344B

                  MD5

                  e581f5b03f0829e513c03e2469e1a513

                  SHA1

                  a52bb1d40ff8db2c79950c50d78ec2cec4525d58

                  SHA256

                  35a4eef1759615e35eadf51dcbbacc6ed9b4005ee70db23ed83bda364ff18363

                  SHA512

                  e9847dcbfd0c6aacc43e0787a95bbfe2b080ff05250d635b089349ac5695a4c71ed2f8b591be77b30f3bb255ff9f7acd0604ed117131b85d23f88ea83dad1c98

                  Download Submit

                • C:\Users\Admin\AppData\Local\Temp\Build\pub.key
                  Filesize

                  344B

                  MD5

                  e181ae9e976e8cd643289cca1780b475

                  SHA1

                  2df7c3157336da05c94ee80deb32ed24b7a9bd6b

                  SHA256

                  c666bcfe1a214c4e5cd020ce81ef5bcfc16fad565bef8615c6e63f736b34a87b

                  SHA512

                  566dc8a3997f6c1df91576c25f07813b2eb45f0df72d279e2382d317d03a279e6afa0543ce79ec11191aa3ee1ac0c73438bb22e2f6abf3911bf896e9e80afe71

                  Download Submit