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
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-12-2022 09:55

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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:1948
    • 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:4252
      • 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:4956
        • 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:4928
          • 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:4868
            • 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:5056
              • 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:1048
                • 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:3284

                Network

                MITRE ATT&CK Matrix

                Replay Monitor

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                Downloads

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

                  344B

                  MD5

                  3d41ef8aa13d752f03bfd9747db8bded

                  SHA1

                  b987cccb178c02dbd4a8247c30cc30cc351a93a5

                  SHA256

                  ae770527f8cefdbe9cacdc1367cccee971feeb768783b9f28808b9fc7ca4b7c8

                  SHA512

                  7dd6a15609a457ce95b2d1c2d38e2503c6dcba638e0e1f98a32aad6347f203e68422fd1d8daee0416ae5076c738b33538e13f4f7cb235f63adbcdf3a80c12c30

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

                  344B

                  MD5

                  556a34d4a8255f886f4beccab999d625

                  SHA1

                  acf46cc211973915ca699666c0b9a838a18484d2

                  SHA256

                  293f6608b961c7ce11d067ff7b9d8886538a4029d97a736c620437aa3a980dfb

                  SHA512

                  5a34596b4ce583d609b5b65f80f93b340157cd0d9cdc97264a7c19aa867d3587f4aedab01791bd78cdc893d0ad39afe144b84d3b28bdb3df220b8df56c751e07

                  Download Submit