Resubmissions

11-12-2023 02:33

231211-c2b93aagbr 10

Analysis

  • max time kernel
    146s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-12-2023 02:33

General

  • Target

    5ff19009b6f29952af3ad9e7edf22377abbdca476b9bb945f1b3b057c8b84e3a.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 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ff19009b6f29952af3ad9e7edf22377abbdca476b9bb945f1b3b057c8b84e3a.exe
    "C:\Users\Admin\AppData\Local\Temp\5ff19009b6f29952af3ad9e7edf22377abbdca476b9bb945f1b3b057c8b84e3a.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Users\Admin\AppData\Local\Temp\5ff19009b6f29952af3ad9e7edf22377abbdca476b9bb945f1b3b057c8b84e3a.exe
      C:\Users\Admin\AppData\Local\Temp\5ff19009b6f29952af3ad9e7edf22377abbdca476b9bb945f1b3b057c8b84e3a.exe
      2⤵
        PID:1564

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/624-7-0x0000000005A60000-0x0000000005A8E000-memory.dmp

      Filesize

      184KB

    • memory/624-1-0x00000000753A0000-0x0000000075B50000-memory.dmp

      Filesize

      7.7MB

    • memory/624-2-0x0000000005FA0000-0x0000000006544000-memory.dmp

      Filesize

      5.6MB

    • memory/624-3-0x0000000005A90000-0x0000000005B22000-memory.dmp

      Filesize

      584KB

    • memory/624-4-0x00000000059A0000-0x00000000059B0000-memory.dmp

      Filesize

      64KB

    • memory/624-6-0x0000000005C90000-0x0000000005CD6000-memory.dmp

      Filesize

      280KB

    • memory/624-0-0x0000000000FC0000-0x0000000001034000-memory.dmp

      Filesize

      464KB

    • memory/624-8-0x0000000005CF0000-0x0000000005D1E000-memory.dmp

      Filesize

      184KB

    • memory/624-10-0x0000000005E50000-0x0000000005EB6000-memory.dmp

      Filesize

      408KB

    • memory/624-9-0x0000000005D70000-0x0000000005DBC000-memory.dmp

      Filesize

      304KB

    • memory/624-5-0x0000000005A50000-0x0000000005A5A000-memory.dmp

      Filesize

      40KB

    • memory/624-16-0x00000000753A0000-0x0000000075B50000-memory.dmp

      Filesize

      7.7MB

    • memory/1564-15-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/1564-12-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB