Analysis

  • max time kernel
    124s
  • max time network
    122s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 20:44

General

  • Target

    67eda2e2df252d8e8da71cbc0aca21e42b082d54d662b934775e478ec378bb09.exe

  • Size

    638KB

  • MD5

    d9f6bff1ee2812647e534b793b8a5b3e

  • SHA1

    a6215720497667a69cc9a2f58eb826131ca05068

  • SHA256

    67eda2e2df252d8e8da71cbc0aca21e42b082d54d662b934775e478ec378bb09

  • SHA512

    cbe3c7ba9db6ad1509a4bb62b8cb9234874943ba23fbdb0d220c2c84b6ed95d0748c7216aadab9036a2b2dfe3d6b57d8648423cff74ed25211dbfd881001cd37

  • SSDEEP

    12288:psTri9uod71pwGuB7DNnu5I1jhxgmZw1lb4K1ebqdpCAq/r1zhrWFumg2:psTrikod71pwGuB7DNnui1jbx051ebqm

Malware Config

Extracted

Family

njrat

Version

0.7d

Botnet

HacKed

C2

mehdimoro.ddns.net:5555

Mutex

4aeed655f342a0295abb3112731f878a

Attributes
  • reg_key

    4aeed655f342a0295abb3112731f878a

  • splitter

    |'|'|

Signatures

  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67eda2e2df252d8e8da71cbc0aca21e42b082d54d662b934775e478ec378bb09.exe
    "C:\Users\Admin\AppData\Local\Temp\67eda2e2df252d8e8da71cbc0aca21e42b082d54d662b934775e478ec378bb09.exe"
    1⤵
    • Adds Run key to start application
    • Drops file in System32 directory
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:428
    • C:\Users\Admin\AppData\Local\Temp\67eda2e2df252d8e8da71cbc0aca21e42b082d54d662b934775e478ec378bb09.exe
      C:\Users\Admin\AppData\Local\Temp\67eda2e2df252d8e8da71cbc0aca21e42b082d54d662b934775e478ec378bb09.exe
      2⤵
      • Checks computer location settings
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:1828
      • C:\Windows\svchost.exe
        "C:\Windows\svchost.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1052
        • C:\Windows\svchost.exe
          C:\Windows\svchost.exe
          4⤵
            PID:2308

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\67eda2e2df252d8e8da71cbc0aca21e42b082d54d662b934775e478ec378bb09.exe.log

      Filesize

      1KB

      MD5

      400f1cc1a0a0ce1cdabda365ab3368ce

      SHA1

      1ecf683f14271d84f3b6063493dce00ff5f42075

      SHA256

      c8fa64f4b69df13ed6408fd4a204f318a36c2f38c85d4a4d42adfc9173f73765

      SHA512

      14c8cfd58d097e5e89c8cabe1e665173f1ccf604a9ef70cdcb84116e265f90819c19c891be408e0ad7e29086a5c2ea2883b7a7d1184878dbbac63e2cabcd1c45

    • C:\Windows\svchost.exe

      Filesize

      638KB

      MD5

      d9f6bff1ee2812647e534b793b8a5b3e

      SHA1

      a6215720497667a69cc9a2f58eb826131ca05068

      SHA256

      67eda2e2df252d8e8da71cbc0aca21e42b082d54d662b934775e478ec378bb09

      SHA512

      cbe3c7ba9db6ad1509a4bb62b8cb9234874943ba23fbdb0d220c2c84b6ed95d0748c7216aadab9036a2b2dfe3d6b57d8648423cff74ed25211dbfd881001cd37

    • C:\Windows\svchost.exe

      Filesize

      638KB

      MD5

      d9f6bff1ee2812647e534b793b8a5b3e

      SHA1

      a6215720497667a69cc9a2f58eb826131ca05068

      SHA256

      67eda2e2df252d8e8da71cbc0aca21e42b082d54d662b934775e478ec378bb09

      SHA512

      cbe3c7ba9db6ad1509a4bb62b8cb9234874943ba23fbdb0d220c2c84b6ed95d0748c7216aadab9036a2b2dfe3d6b57d8648423cff74ed25211dbfd881001cd37

    • memory/428-132-0x0000000000B60000-0x0000000000C06000-memory.dmp

      Filesize

      664KB

    • memory/428-133-0x0000000005D60000-0x0000000006304000-memory.dmp

      Filesize

      5.6MB

    • memory/428-134-0x00000000058C0000-0x0000000005952000-memory.dmp

      Filesize

      584KB

    • memory/428-135-0x0000000005C40000-0x0000000005C4A000-memory.dmp

      Filesize

      40KB

    • memory/428-136-0x0000000008190000-0x000000000822C000-memory.dmp

      Filesize

      624KB

    • memory/1052-139-0x0000000000000000-mapping.dmp

    • memory/1828-137-0x0000000000000000-mapping.dmp

    • memory/1828-138-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/2308-143-0x0000000000000000-mapping.dmp