Resubmissions

11-12-2023 02:33

231211-c2b93aagbr 10

Analysis

  • max time kernel
    122s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20231023-en
  • resource tags

    arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-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 10 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:2232
    • C:\Users\Admin\AppData\Local\Temp\5ff19009b6f29952af3ad9e7edf22377abbdca476b9bb945f1b3b057c8b84e3a.exe
      C:\Users\Admin\AppData\Local\Temp\5ff19009b6f29952af3ad9e7edf22377abbdca476b9bb945f1b3b057c8b84e3a.exe
      2⤵
        PID:2716

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/2232-0-0x00000000013B0000-0x0000000001424000-memory.dmp

      Filesize

      464KB

    • memory/2232-1-0x0000000074740000-0x0000000074E2E000-memory.dmp

      Filesize

      6.9MB

    • memory/2232-2-0x0000000001340000-0x0000000001380000-memory.dmp

      Filesize

      256KB

    • memory/2232-3-0x0000000000840000-0x0000000000886000-memory.dmp

      Filesize

      280KB

    • memory/2232-4-0x00000000009D0000-0x00000000009FE000-memory.dmp

      Filesize

      184KB

    • memory/2232-5-0x0000000000B40000-0x0000000000B6E000-memory.dmp

      Filesize

      184KB

    • memory/2232-6-0x0000000000BD0000-0x0000000000C1C000-memory.dmp

      Filesize

      304KB

    • memory/2232-23-0x0000000074740000-0x0000000074E2E000-memory.dmp

      Filesize

      6.9MB

    • memory/2716-10-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2716-12-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2716-14-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2716-16-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2716-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2716-20-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2716-8-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB

    • memory/2716-22-0x0000000000400000-0x0000000000407000-memory.dmp

      Filesize

      28KB