Analysis

  • max time kernel
    142s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-08-2023 08:25

General

  • Target

    6198c96769b99e9325d918ef6e89793472b0acff37ebbc176791547c3b807812.exe

  • Size

    1.0MB

  • MD5

    bf28d733ee9004e60bb01193d1dfcc7c

  • SHA1

    6ca57dd01c7de207daf2bd903f923b4905e3165d

  • SHA256

    6198c96769b99e9325d918ef6e89793472b0acff37ebbc176791547c3b807812

  • SHA512

    f779a3150d5525a00b4dc6fc7406a3aae293d41a4625748da8e8771f9d5667de97e2a5e20e067998b86d6b7b37a7f495107c5ed93e006a76564de2dd3f733c64

  • SSDEEP

    24576:4oKcMYyFjcKBXJqIGDpE0Dxtb1FQ7jhbc02obFAgvw9:QcNyVcKBX5GGSxtSbyeFAg

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

  • Detect Blackmoon payload 7 IoCs
  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 19 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Modifies registry class 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6198c96769b99e9325d918ef6e89793472b0acff37ebbc176791547c3b807812.exe
    "C:\Users\Admin\AppData\Local\Temp\6198c96769b99e9325d918ef6e89793472b0acff37ebbc176791547c3b807812.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2748
    • C:\Windows\SysWOW64\explorer.exe
      explorer.exe
      2⤵
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies Internet Explorer settings
      • Modifies registry class
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2168
      • C:\Windows\SysWOW64\explorer.exe
        explorer.exe
        3⤵
          PID:1292
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 1080
        2⤵
        • Program crash
        PID:3224
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2748 -s 2044
        2⤵
        • Program crash
        PID:2552
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2748 -ip 2748
      1⤵
        PID:2972
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2748 -ip 2748
        1⤵
          PID:4804

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Windows\SysWOW64\ExuiKrnln.dll

          Filesize

          328KB

          MD5

          6b0c10b774ee6dbcf0e4bd1557e7160b

          SHA1

          98e5502f0cb27e355062e8fa0b9aad80e5c0bbad

          SHA256

          335722b2684ffeac668ed8e9d7d582a395f9fc3d13f552f07c5d3ec7f025890f

          SHA512

          a44729fad75a090e4b3a0a4211ded10ef8ec499a7479efd2e3e6c448a3c625073b88e9e2c63c943f2fbcd9605aa9cc3cb1176a2ad61d91f22c4116948d66decf

        • C:\Windows\SysWOW64\ExuiKrnln.dll

          Filesize

          328KB

          MD5

          6b0c10b774ee6dbcf0e4bd1557e7160b

          SHA1

          98e5502f0cb27e355062e8fa0b9aad80e5c0bbad

          SHA256

          335722b2684ffeac668ed8e9d7d582a395f9fc3d13f552f07c5d3ec7f025890f

          SHA512

          a44729fad75a090e4b3a0a4211ded10ef8ec499a7479efd2e3e6c448a3c625073b88e9e2c63c943f2fbcd9605aa9cc3cb1176a2ad61d91f22c4116948d66decf

        • memory/2168-12-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2168-2-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2168-8-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2168-9-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2168-10-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2168-11-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2168-35-0x0000000074BC0000-0x0000000074CCB000-memory.dmp

          Filesize

          1.0MB

        • memory/2168-3-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2168-15-0x0000000074BC0000-0x0000000074CCB000-memory.dmp

          Filesize

          1.0MB

        • memory/2168-4-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2168-25-0x0000000074BC0000-0x0000000074CCB000-memory.dmp

          Filesize

          1.0MB

        • memory/2168-18-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2168-19-0x0000000074BC0000-0x0000000074CCB000-memory.dmp

          Filesize

          1.0MB

        • memory/2168-20-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2748-21-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2748-16-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB

        • memory/2748-0-0x0000000000400000-0x00000000007FE000-memory.dmp

          Filesize

          4.0MB