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 15:22

General

  • Target

    botnet.exe

  • Size

    55KB

  • MD5

    75c3c6f848f99103c46d785d1a488138

  • SHA1

    3f75be65932cec817261d8a5e4c26ebd643bb07b

  • SHA256

    33d3d6d79232d61d88f214d83d6eab25ad9c40aff24045745795e97955388420

  • SHA512

    66e7dfaabc302b4bea87760869a12d50e9e9657485b14af1bdea7334f3a441675d8c4cd307109e28b6f14962c3d20e7e005ab68562b1ebe6ba6b17bdc246bc50

  • SSDEEP

    1536:D/pMDnE4uNRty4XzPhhDVwsNMDwXExI3pm1Om:dMDnlYk4XdhDVwsNMDwXExI3pm

Malware Config

Extracted

Family

njrat

Version

<- NjRAT 0.7d Horror Edition ->

Botnet

Victim

C2

2.tcp.eu.ngrok.io:14206

Mutex

414bf8bf8acc3fbb7978d9d782a996a1

Attributes
  • reg_key

    414bf8bf8acc3fbb7978d9d782a996a1

  • splitter

    Y262SUCZ4UJJ

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:2424
    • 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:3960
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c powershell Set-MpPreference -DisableRealtimeMonitoring $true
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3332
      • 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:2548
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c sc query windefend
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Windows\SysWOW64\sc.exe
        sc query windefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:2912
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c sc stop windefend
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3816
      • C:\Windows\SysWOW64\sc.exe
        sc stop windefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:4504
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c sc delete windefend
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1776
      • C:\Windows\SysWOW64\sc.exe
        sc delete windefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:4928
    • C:\Windows\SysWOW64\schtasks.exe
      schtasks /delete /tn CleanSweepCheck /f
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5008
    • 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:4072
    • 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:3996
      • 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:1924
  • 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:1140
  • 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:2896

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

    cdab7719c71b2844a3e7ff9e41894b8a

    SHA1

    8e6e0e55695e468eb3c237f21340c9d30cab922c

    SHA256

    e84a57ed5465aaca393476f6271a2413dddad154cbae40827c4639bfc0b3e3eb

    SHA512

    ec92e8fc3ce02336eea401f9db823ac0a2ad87bb41130f493e72f3c5ca100a461d6296a710afcc93e1fe1fc8630c5e0029e17f58583520077a3c80ad794d9dc9

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_o0ihryrk.wxe.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    55KB

    MD5

    75c3c6f848f99103c46d785d1a488138

    SHA1

    3f75be65932cec817261d8a5e4c26ebd643bb07b

    SHA256

    33d3d6d79232d61d88f214d83d6eab25ad9c40aff24045745795e97955388420

    SHA512

    66e7dfaabc302b4bea87760869a12d50e9e9657485b14af1bdea7334f3a441675d8c4cd307109e28b6f14962c3d20e7e005ab68562b1ebe6ba6b17bdc246bc50

  • memory/2424-1-0x0000000074820000-0x0000000074DD1000-memory.dmp

    Filesize

    5.7MB

  • memory/2424-2-0x0000000074820000-0x0000000074DD1000-memory.dmp

    Filesize

    5.7MB

  • memory/2424-4-0x0000000074822000-0x0000000074823000-memory.dmp

    Filesize

    4KB

  • memory/2424-6-0x0000000074820000-0x0000000074DD1000-memory.dmp

    Filesize

    5.7MB

  • memory/2424-0-0x0000000074822000-0x0000000074823000-memory.dmp

    Filesize

    4KB

  • memory/2424-22-0x0000000074820000-0x0000000074DD1000-memory.dmp

    Filesize

    5.7MB

  • memory/2548-24-0x0000000005CC0000-0x0000000005D0C000-memory.dmp

    Filesize

    304KB

  • memory/2548-37-0x0000000006E10000-0x0000000006E2E000-memory.dmp

    Filesize

    120KB

  • memory/2548-10-0x0000000004D70000-0x0000000004DD6000-memory.dmp

    Filesize

    408KB

  • memory/2548-9-0x0000000004CD0000-0x0000000004CF2000-memory.dmp

    Filesize

    136KB

  • memory/2548-21-0x0000000005640000-0x0000000005997000-memory.dmp

    Filesize

    3.3MB

  • memory/2548-8-0x00000000725A0000-0x0000000072D51000-memory.dmp

    Filesize

    7.7MB

  • memory/2548-23-0x0000000005C10000-0x0000000005C2E000-memory.dmp

    Filesize

    120KB

  • memory/2548-7-0x0000000004E40000-0x000000000550A000-memory.dmp

    Filesize

    6.8MB

  • memory/2548-27-0x000000006EDF0000-0x000000006EE3C000-memory.dmp

    Filesize

    304KB

  • memory/2548-26-0x00000000725A0000-0x0000000072D51000-memory.dmp

    Filesize

    7.7MB

  • memory/2548-25-0x0000000006DD0000-0x0000000006E02000-memory.dmp

    Filesize

    200KB

  • memory/2548-11-0x0000000005510000-0x0000000005576000-memory.dmp

    Filesize

    408KB

  • memory/2548-38-0x00000000725A0000-0x0000000072D51000-memory.dmp

    Filesize

    7.7MB

  • memory/2548-39-0x00000000725A0000-0x0000000072D51000-memory.dmp

    Filesize

    7.7MB

  • memory/2548-40-0x0000000006E40000-0x0000000006EE3000-memory.dmp

    Filesize

    652KB

  • memory/2548-41-0x00000000075E0000-0x0000000007C5A000-memory.dmp

    Filesize

    6.5MB

  • memory/2548-42-0x0000000006FA0000-0x0000000006FBA000-memory.dmp

    Filesize

    104KB

  • memory/2548-43-0x0000000007000000-0x000000000700A000-memory.dmp

    Filesize

    40KB

  • memory/2548-44-0x0000000007220000-0x00000000072B6000-memory.dmp

    Filesize

    600KB

  • memory/2548-45-0x00000000725A0000-0x0000000072D51000-memory.dmp

    Filesize

    7.7MB

  • memory/2548-48-0x00000000725A0000-0x0000000072D51000-memory.dmp

    Filesize

    7.7MB

  • memory/2548-5-0x0000000002250000-0x0000000002286000-memory.dmp

    Filesize

    216KB

  • memory/2548-3-0x00000000725AE000-0x00000000725AF000-memory.dmp

    Filesize

    4KB