Analysis

  • max time kernel
    153s
  • max time network
    185s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    24-09-2021 06:12

General

  • Target

    864259b607ed3dd2fc8873cd2e0fcbbb1b156bbf67afb55cbc41b8a83ae81b9a.exe

  • Size

    92KB

  • MD5

    d136709b5b24d88ea5e2f42821a5a996

  • SHA1

    ce1371e3e78173266a95370856ad24412aaa9b23

  • SHA256

    864259b607ed3dd2fc8873cd2e0fcbbb1b156bbf67afb55cbc41b8a83ae81b9a

  • SHA512

    5642bef456efcb67dc7788a7af5296e5c856d66a10e31a0ff140641226f176d6c573e848bc3ad1680b8279f9a92bef6c7683f1a62b92df6f4883299df2c0bc6a

Malware Config

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 31 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\864259b607ed3dd2fc8873cd2e0fcbbb1b156bbf67afb55cbc41b8a83ae81b9a.exe
    "C:\Users\Admin\AppData\Local\Temp\864259b607ed3dd2fc8873cd2e0fcbbb1b156bbf67afb55cbc41b8a83ae81b9a.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1928
    • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
      "C:\Users\Admin\AppData\Local\Temp\Chrome.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1364
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\Chrome.exe" "Chrome.exe" ENABLE
        3⤵
          PID:1580

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
      MD5

      d136709b5b24d88ea5e2f42821a5a996

      SHA1

      ce1371e3e78173266a95370856ad24412aaa9b23

      SHA256

      864259b607ed3dd2fc8873cd2e0fcbbb1b156bbf67afb55cbc41b8a83ae81b9a

      SHA512

      5642bef456efcb67dc7788a7af5296e5c856d66a10e31a0ff140641226f176d6c573e848bc3ad1680b8279f9a92bef6c7683f1a62b92df6f4883299df2c0bc6a

    • C:\Users\Admin\AppData\Local\Temp\Chrome.exe
      MD5

      d136709b5b24d88ea5e2f42821a5a996

      SHA1

      ce1371e3e78173266a95370856ad24412aaa9b23

      SHA256

      864259b607ed3dd2fc8873cd2e0fcbbb1b156bbf67afb55cbc41b8a83ae81b9a

      SHA512

      5642bef456efcb67dc7788a7af5296e5c856d66a10e31a0ff140641226f176d6c573e848bc3ad1680b8279f9a92bef6c7683f1a62b92df6f4883299df2c0bc6a

    • \Users\Admin\AppData\Local\Temp\Chrome.exe
      MD5

      d136709b5b24d88ea5e2f42821a5a996

      SHA1

      ce1371e3e78173266a95370856ad24412aaa9b23

      SHA256

      864259b607ed3dd2fc8873cd2e0fcbbb1b156bbf67afb55cbc41b8a83ae81b9a

      SHA512

      5642bef456efcb67dc7788a7af5296e5c856d66a10e31a0ff140641226f176d6c573e848bc3ad1680b8279f9a92bef6c7683f1a62b92df6f4883299df2c0bc6a

    • memory/1364-70-0x0000000000860000-0x0000000000861000-memory.dmp
      Filesize

      4KB

    • memory/1364-67-0x0000000000000000-mapping.dmp
    • memory/1364-74-0x0000000004A20000-0x0000000004A21000-memory.dmp
      Filesize

      4KB

    • memory/1580-76-0x0000000000000000-mapping.dmp
    • memory/1580-77-0x0000000076691000-0x0000000076693000-memory.dmp
      Filesize

      8KB

    • memory/1928-65-0x0000000000340000-0x0000000000349000-memory.dmp
      Filesize

      36KB

    • memory/1928-64-0x0000000002300000-0x0000000002301000-memory.dmp
      Filesize

      4KB

    • memory/1928-63-0x0000000000230000-0x0000000000231000-memory.dmp
      Filesize

      4KB

    • memory/1928-62-0x00000000003E0000-0x0000000000400000-memory.dmp
      Filesize

      128KB

    • memory/1928-60-0x0000000000AD0000-0x0000000000AD1000-memory.dmp
      Filesize

      4KB