Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    30-12-2021 15:07

General

  • Target

    cc579df05cc94213fa649e5e6a7bb249.exe

  • Size

    37KB

  • MD5

    cc579df05cc94213fa649e5e6a7bb249

  • SHA1

    231683a72b0a4406b177ea62a45b2b06c37acfb9

  • SHA256

    e80b7525c04cf98d2bb872559472d9d98f803cb43d02dd45c219c8b2f69ad02f

  • SHA512

    dc63ba9c154fad079f6ef9d5de9a0b1ee5919d1cf64dcd54f2563069efd56685d374aacc9d197a9ac69494781e492133f7459e87516e3827c3eb6c944756c0dc

Malware Config

Extracted

Family

njrat

Version

im523

Botnet

HacKed

C2

80.64.80.233:8007

Mutex

abbc667e1c50def29b48feb179075d94

Attributes
  • reg_key

    abbc667e1c50def29b48feb179075d94

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cc579df05cc94213fa649e5e6a7bb249.exe
    "C:\Users\Admin\AppData\Local\Temp\cc579df05cc94213fa649e5e6a7bb249.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:604
    • C:\Users\Admin\AppData\Local\Temp\server.exe
      "C:\Users\Admin\AppData\Local\Temp\server.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1892
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\server.exe" "server.exe" ENABLE
        3⤵
          PID:1224

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\server.exe

      MD5

      cc579df05cc94213fa649e5e6a7bb249

      SHA1

      231683a72b0a4406b177ea62a45b2b06c37acfb9

      SHA256

      e80b7525c04cf98d2bb872559472d9d98f803cb43d02dd45c219c8b2f69ad02f

      SHA512

      dc63ba9c154fad079f6ef9d5de9a0b1ee5919d1cf64dcd54f2563069efd56685d374aacc9d197a9ac69494781e492133f7459e87516e3827c3eb6c944756c0dc

    • C:\Users\Admin\AppData\Local\Temp\server.exe

      MD5

      cc579df05cc94213fa649e5e6a7bb249

      SHA1

      231683a72b0a4406b177ea62a45b2b06c37acfb9

      SHA256

      e80b7525c04cf98d2bb872559472d9d98f803cb43d02dd45c219c8b2f69ad02f

      SHA512

      dc63ba9c154fad079f6ef9d5de9a0b1ee5919d1cf64dcd54f2563069efd56685d374aacc9d197a9ac69494781e492133f7459e87516e3827c3eb6c944756c0dc

    • \Users\Admin\AppData\Local\Temp\server.exe

      MD5

      cc579df05cc94213fa649e5e6a7bb249

      SHA1

      231683a72b0a4406b177ea62a45b2b06c37acfb9

      SHA256

      e80b7525c04cf98d2bb872559472d9d98f803cb43d02dd45c219c8b2f69ad02f

      SHA512

      dc63ba9c154fad079f6ef9d5de9a0b1ee5919d1cf64dcd54f2563069efd56685d374aacc9d197a9ac69494781e492133f7459e87516e3827c3eb6c944756c0dc

    • memory/604-54-0x0000000076C91000-0x0000000076C93000-memory.dmp

      Filesize

      8KB

    • memory/604-55-0x0000000001F50000-0x0000000001F51000-memory.dmp

      Filesize

      4KB

    • memory/1224-62-0x0000000000000000-mapping.dmp

    • memory/1892-57-0x0000000000000000-mapping.dmp

    • memory/1892-61-0x00000000002A0000-0x00000000002A1000-memory.dmp

      Filesize

      4KB