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
    90s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-09-2022 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:1740
    • 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:5024
      • 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:1464
        • 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:4108
          • 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:4504
            • 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:4800
              • 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:3388
                • 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:1560

                Network

                MITRE ATT&CK Matrix

                Replay Monitor

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                Downloads

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

                  344B

                  MD5

                  c60341671847a470bd295ffdff9222b1

                  SHA1

                  feb9a285b8f95a636a50588855f21fdd29a31c96

                  SHA256

                  abb21d951095eba69c4a1c1fd2603cdfcafd03741943830c7f3899826c8043e0

                  SHA512

                  c34442b4fc5aa7c75ef5bad7316c8ec94a7949fb5b187c425c9c78e795d58f40e925076282b79e9d0019ba00e1c0f5ddd721b2b3d824a8fefc98190cc5600723

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

                  344B

                  MD5

                  ada2f85195a0b22df2e6f69bda9ed7be

                  SHA1

                  3783cd707a7b8d735e5c79dac663bc5695dca005

                  SHA256

                  6998e6d1ab5f6eb71b2bd7c98a0b6a587e172931b03f945883902de185f06584

                  SHA512

                  ad3da7aed952486080ac401bde33b48f8a81352b68207d4355ee9fed72a62410e24f24c9c115107c22f3223256e2da4eb33cbda01c0f7ca7c2b04cf85e67bc14

                  Download Submit