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

config.json

windows7-x64

3

config.json

windows10-2004-x64

3

keygen.exe

windows7-x64

1

keygen.exe

windows10-2004-x64

1

Analysis

  • max time kernel
    90s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-10-2022 11:16

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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:2260
    • 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:5088
      • 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:632
        • 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:2772
          • 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:1384
            • 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:2540
              • 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:3784
                • 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:1580

                Network

                MITRE ATT&CK Matrix

                Replay Monitor

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                Downloads

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

                  344B

                  MD5

                  d277ba5ee35365b05fa8bb0cedae050c

                  SHA1

                  00ae921d98c8f8317930b7fada9a98c68bc7b751

                  SHA256

                  f2add1b8ab6d4f6e69a4412d9e5782fb1d20731d39b74637e15e026be3caa610

                  SHA512

                  f43a9db8a8bd4364d40acd3bd8ae118040a0ea1b3979c04a4c02be87b991574f41c5996fff3b72bc736d7f93fb277e6b7f0f473f52a23719a7a0cffb10d34bae

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

                  344B

                  MD5

                  ce70bed8acffd9dcac7b5f25d29122de

                  SHA1

                  3755216a289c30acbf58c667d64fbe8bd4fbe0e5

                  SHA256

                  bf0d61de11b5e2b69a606e74329d96bb573c29e6af54831be85efa60ca0c37fd

                  SHA512

                  310a1f1fbd4a2049d246d1d408bc4dbee74b7be8318b4abf8dcf7f75c3c5bd798db3002225ec6fd753cb36724d4a73c13410138736cc1955fe1833621e9d3915

                  Download Submit