Analysis

  • max time kernel
    142s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-12-2023 17:48

General

  • Target

    96A3EA4BC09BBA5437EF00C758924CAE.exe

  • Size

    458KB

  • MD5

    96a3ea4bc09bba5437ef00c758924cae

  • SHA1

    0154b6d842f48eb715e11856d3c7f5e92dba9384

  • SHA256

    5ff19009b6f29952af3ad9e7edf22377abbdca476b9bb945f1b3b057c8b84e3a

  • SHA512

    54cfb4dbffb1e0e0ccdd619af6521f353ee76f92b13557f1a0f521b8e0198637924a3168ec86b8b447070bd50b1d5af0c0a0c6d2ac4c4ca977e3a95459b837ab

  • SSDEEP

    6144:tk5byxHPnZaCHWWjjnnhUNeX0BmHbHTLNMT9wRUMXFLpmEJyMQxVGGGGGGGGHGG3:5xvnZaCHW+nhUNQSwbHFMx0UQtx2b

Malware Config

Extracted

Family

systembc

C2

wprogs.top:4001

leadsoftware.top:4001

Signatures

  • SystemBC

    SystemBC is a proxy and remote administration tool first seen in 2019.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\96A3EA4BC09BBA5437EF00C758924CAE.exe
    "C:\Users\Admin\AppData\Local\Temp\96A3EA4BC09BBA5437EF00C758924CAE.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1648
    • C:\Users\Admin\AppData\Local\Temp\96A3EA4BC09BBA5437EF00C758924CAE.exe
      C:\Users\Admin\AppData\Local\Temp\96A3EA4BC09BBA5437EF00C758924CAE.exe
      2⤵
        PID:1548
    • C:\Windows\system32\rundll32.exe
      "C:\Windows\system32\rundll32.exe" "C:\Windows\SYSTEM32\EDGEHTML.dll",#141 Microsoft.VCLibs.140.00_8wekyb3d8bbwe
      1⤵
        PID:4528
      • C:\Windows\System32\svchost.exe
        C:\Windows\System32\svchost.exe -k UnistackSvcGroup
        1⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:1644

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1548-12-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/1548-15-0x0000000000400000-0x0000000000407000-memory.dmp

        Filesize

        28KB

      • memory/1644-60-0x000001F8FE970000-0x000001F8FE971000-memory.dmp

        Filesize

        4KB

      • memory/1644-63-0x000001F8FE970000-0x000001F8FE971000-memory.dmp

        Filesize

        4KB

      • memory/1644-85-0x000001F8FEBC0000-0x000001F8FEBC1000-memory.dmp

        Filesize

        4KB

      • memory/1644-84-0x000001F8FEAB0000-0x000001F8FEAB1000-memory.dmp

        Filesize

        4KB

      • memory/1644-51-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1644-83-0x000001F8FEAB0000-0x000001F8FEAB1000-memory.dmp

        Filesize

        4KB

      • memory/1644-81-0x000001F8FEAA0000-0x000001F8FEAA1000-memory.dmp

        Filesize

        4KB

      • memory/1644-52-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1644-69-0x000001F8FE8A0000-0x000001F8FE8A1000-memory.dmp

        Filesize

        4KB

      • memory/1644-53-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1644-66-0x000001F8FE960000-0x000001F8FE961000-memory.dmp

        Filesize

        4KB

      • memory/1644-57-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1644-17-0x000001F8FA640000-0x000001F8FA650000-memory.dmp

        Filesize

        64KB

      • memory/1644-33-0x000001F8FA740000-0x000001F8FA750000-memory.dmp

        Filesize

        64KB

      • memory/1644-49-0x000001F8FED20000-0x000001F8FED21000-memory.dmp

        Filesize

        4KB

      • memory/1644-50-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1644-61-0x000001F8FE960000-0x000001F8FE961000-memory.dmp

        Filesize

        4KB

      • memory/1644-59-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1644-58-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1644-54-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1644-55-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1644-56-0x000001F8FED40000-0x000001F8FED41000-memory.dmp

        Filesize

        4KB

      • memory/1648-9-0x00000000057A0000-0x00000000057EC000-memory.dmp

        Filesize

        304KB

      • memory/1648-2-0x0000000005990000-0x0000000005F34000-memory.dmp

        Filesize

        5.6MB

      • memory/1648-3-0x0000000005480000-0x0000000005512000-memory.dmp

        Filesize

        584KB

      • memory/1648-0-0x0000000074DE0000-0x0000000075590000-memory.dmp

        Filesize

        7.7MB

      • memory/1648-6-0x00000000055A0000-0x00000000055E6000-memory.dmp

        Filesize

        280KB

      • memory/1648-16-0x0000000074DE0000-0x0000000075590000-memory.dmp

        Filesize

        7.7MB

      • memory/1648-1-0x0000000000B30000-0x0000000000BA4000-memory.dmp

        Filesize

        464KB

      • memory/1648-10-0x0000000005880000-0x00000000058E6000-memory.dmp

        Filesize

        408KB

      • memory/1648-8-0x0000000005730000-0x000000000575E000-memory.dmp

        Filesize

        184KB

      • memory/1648-7-0x0000000005700000-0x000000000572E000-memory.dmp

        Filesize

        184KB

      • memory/1648-5-0x0000000005520000-0x000000000552A000-memory.dmp

        Filesize

        40KB

      • memory/1648-4-0x0000000005430000-0x0000000005440000-memory.dmp

        Filesize

        64KB