Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250113-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250113-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    14-01-2025 14:49

General

  • Target

    botnet.exe

  • Size

    198KB

  • MD5

    3d257d086f0deb8f071750ecd2f0920d

  • SHA1

    aba1c55c9b4b6508b18731890fb53bb3a9c1ab0f

  • SHA256

    677dbc521d1d7babe3fc7676f20083ba4b712b910301bef2c0fd250a25fc6984

  • SHA512

    f3b191f46aa3b801618366a027a40a5b6df420eef2f875f295c7146666aa3d8bfbd01d5405d8b6e779a31e8e79530a91aa69028d6cf011163b97a9491894b74a

  • SSDEEP

    6144:PMhkGNbq9+R0asskirU+sHzSTWv42iRhuq5T25:kctZlirtWv42J

Malware Config

Signatures

  • Njrat family
  • UAC bypass 3 TTPs 1 IoCs
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Stops running service(s) 4 TTPs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Launches sc.exe 3 IoCs

    Sc.exe is a Windows utlilty to control services on the system.

  • System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry key 1 TTPs 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 59 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\botnet.exe
    "C:\Users\Admin\AppData\Local\Temp\botnet.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h "C:\Users\Admin\AppData\Local\Temp\botnet.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:4812
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c powershell Set-MpPreference -DisableRealtimeMonitoring $true
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:384
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell Set-MpPreference -DisableRealtimeMonitoring $true
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4228
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c sc query windefend
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1248
      • C:\Windows\SysWOW64\sc.exe
        sc query windefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:1320
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c sc stop windefend
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3868
      • C:\Windows\SysWOW64\sc.exe
        sc stop windefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:3944
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c sc delete windefend
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4888
      • C:\Windows\SysWOW64\sc.exe
        sc delete windefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:4728
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /delete /tn CleanSweepCheck /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:4572
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn CleanSweepCheck /tr C:\Users\Admin\AppData\Local\Temp\botnet.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1176
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c reg ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4004
      • C:\Windows\SysWOW64\reg.exe
        reg ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
        3⤵
        • UAC bypass
        • System Location Discovery: System Language Discovery
        • Modifies registry key
        PID:2440
  • C:\Users\Admin\AppData\Local\Temp\botnet.exe
    "C:\Users\Admin\AppData\Local\Temp\botnet.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:2240
  • C:\Users\Admin\AppData\Local\Temp\botnet.exe
    "C:\Users\Admin\AppData\Local\Temp\botnet.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:3100

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\botnet.exe.log

    Filesize

    319B

    MD5

    6dffe4ca730ff070c448bf2b67bc0641

    SHA1

    09118ae384c45c1b0c020fa22916ae43f7f08732

    SHA256

    fc164b3c1c1af6b1bf881fcab858b269a85310b0a4f3cefb0a91431e00950a23

    SHA512

    82f6db85157f79f832c8aab985f8a959afc7a8fad9bd82a4a8a23a8d97a1d563ed6659603cdcdbb0b8c125e56ee37acde9a423f14f6dee2df99a3d2a25649037

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4pufnwef.rvo.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    198KB

    MD5

    3d257d086f0deb8f071750ecd2f0920d

    SHA1

    aba1c55c9b4b6508b18731890fb53bb3a9c1ab0f

    SHA256

    677dbc521d1d7babe3fc7676f20083ba4b712b910301bef2c0fd250a25fc6984

    SHA512

    f3b191f46aa3b801618366a027a40a5b6df420eef2f875f295c7146666aa3d8bfbd01d5405d8b6e779a31e8e79530a91aa69028d6cf011163b97a9491894b74a

  • memory/3024-1-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/3024-2-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/3024-4-0x0000000074A02000-0x0000000074A03000-memory.dmp

    Filesize

    4KB

  • memory/3024-6-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/3024-24-0x0000000074A00000-0x0000000074FB1000-memory.dmp

    Filesize

    5.7MB

  • memory/3024-0-0x0000000074A02000-0x0000000074A03000-memory.dmp

    Filesize

    4KB

  • memory/4228-8-0x0000000004DF0000-0x00000000054BA000-memory.dmp

    Filesize

    6.8MB

  • memory/4228-25-0x0000000006DE0000-0x0000000006E12000-memory.dmp

    Filesize

    200KB

  • memory/4228-11-0x00000000055E0000-0x0000000005646000-memory.dmp

    Filesize

    408KB

  • memory/4228-9-0x0000000004CD0000-0x0000000004CF2000-memory.dmp

    Filesize

    136KB

  • memory/4228-21-0x0000000005750000-0x0000000005AA7000-memory.dmp

    Filesize

    3.3MB

  • memory/4228-22-0x0000000005BF0000-0x0000000005C0E000-memory.dmp

    Filesize

    120KB

  • memory/4228-23-0x0000000005CA0000-0x0000000005CEC000-memory.dmp

    Filesize

    304KB

  • memory/4228-7-0x0000000072780000-0x0000000072F31000-memory.dmp

    Filesize

    7.7MB

  • memory/4228-27-0x0000000072780000-0x0000000072F31000-memory.dmp

    Filesize

    7.7MB

  • memory/4228-37-0x0000000006210000-0x000000000622E000-memory.dmp

    Filesize

    120KB

  • memory/4228-26-0x000000006EFD0000-0x000000006F01C000-memory.dmp

    Filesize

    304KB

  • memory/4228-10-0x0000000005570000-0x00000000055D6000-memory.dmp

    Filesize

    408KB

  • memory/4228-39-0x0000000072780000-0x0000000072F31000-memory.dmp

    Filesize

    7.7MB

  • memory/4228-38-0x0000000006E30000-0x0000000006ED3000-memory.dmp

    Filesize

    652KB

  • memory/4228-40-0x0000000072780000-0x0000000072F31000-memory.dmp

    Filesize

    7.7MB

  • memory/4228-41-0x00000000075B0000-0x0000000007C2A000-memory.dmp

    Filesize

    6.5MB

  • memory/4228-42-0x0000000006F70000-0x0000000006F8A000-memory.dmp

    Filesize

    104KB

  • memory/4228-43-0x0000000006FD0000-0x0000000006FDA000-memory.dmp

    Filesize

    40KB

  • memory/4228-44-0x00000000071D0000-0x0000000007266000-memory.dmp

    Filesize

    600KB

  • memory/4228-45-0x0000000072780000-0x0000000072F31000-memory.dmp

    Filesize

    7.7MB

  • memory/4228-48-0x0000000072780000-0x0000000072F31000-memory.dmp

    Filesize

    7.7MB

  • memory/4228-5-0x0000000002250000-0x0000000002286000-memory.dmp

    Filesize

    216KB

  • memory/4228-3-0x000000007278E000-0x000000007278F000-memory.dmp

    Filesize

    4KB