Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-ltsc_2021_x64
  • resource
    win10ltsc2021-20250314-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250314-enlocale:en-usos:windows10-ltsc_2021-x64system
  • submitted
    22/03/2025, 23:19

General

  • Target

    Payload.exe

  • Size

    54KB

  • MD5

    81e043b5ee1e8931c5ac4d6f79457590

  • SHA1

    616f70b905d99605586de3fa2997135812f9faa1

  • SHA256

    15e516db2e5992ec2ab10969b8b0fef5f86d37f3720cb3a738011fa3ca56a622

  • SHA512

    e4933e3897f65a54b25f8e97084ab045b96b6645cb3a3ccdab80c0fd29dffdbf5f53a84b4a62c74d5190a3515b01226843b1f18da8f8768e667f7e97a9ee3e64

  • SSDEEP

    1536:r3EVGt9gmgpDGxJSMGFWQcGD8X3xIEpm3g:QVGtGmCGxJSMGFWQnD8X3xIEpm

Malware Config

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Stops running service(s) 4 TTPs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Using powershell.exe command.

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Launches sc.exe 3 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 12 IoCs

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

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 63 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payload.exe
    "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
    1⤵
    • Checks computer location settings
    • Drops startup file
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3592
    • C:\Windows\SysWOW64\attrib.exe
      attrib +h "C:\Users\Admin\AppData\Local\Temp\Payload.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Views/modifies file attributes
      PID:3056
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c powershell Set-MpPreference -DisableRealtimeMonitoring $true
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:580
      • 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:4280
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c sc query windefend
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2620
      • C:\Windows\SysWOW64\sc.exe
        sc query windefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:3140
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c sc stop windefend
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Windows\SysWOW64\sc.exe
        sc stop windefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:3540
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c sc delete windefend
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3448
      • C:\Windows\SysWOW64\sc.exe
        sc delete windefend
        3⤵
        • Launches sc.exe
        • System Location Discovery: System Language Discovery
        PID:3104
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c taskkill /f /im Wireshark.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3904
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /im Wireshark.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:1212
    • C:\Users\Admin\AppData\Local\Temp\5ffa6af9608144eea1de1b1a62e78382.exe
      "C:\Users\Admin\AppData\Local\Temp\5ffa6af9608144eea1de1b1a62e78382.exe"
      2⤵
      • Executes dropped EXE
      PID:2864
    • C:\Users\Admin\AppData\Local\Temp\ffcc0c9dfb324e109b3fe57e011cb31b.exe
      "C:\Users\Admin\AppData\Local\Temp\ffcc0c9dfb324e109b3fe57e011cb31b.exe"
      2⤵
      • Executes dropped EXE
      PID:4416
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:332
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x488 0x3c4
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\5ffa6af9608144eea1de1b1a62e78382.exe

    Filesize

    844KB

    MD5

    8cac1595b184f66d7a122af38d5dfe71

    SHA1

    e0bc0162472edf77a05134e77b540663ac050ab6

    SHA256

    00201a2fd4916193c9c7bbba7be6a77fa5876085480b67da4e1228fd8b23ae5f

    SHA512

    88d3753ce73bbf95ee1fdbdff21eb9331e59ca92cfa5c489f141c07dc90871e3032e331c9dd77b1fec4522add3ac25c51d5c699d7801a5343dd2ae447c60f8f8

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_xfstaxjt.kew.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • memory/332-56-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/332-55-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/332-49-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/332-51-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/332-61-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/332-60-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/332-59-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/332-58-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/332-57-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/332-50-0x0000022D92A30000-0x0000022D92A31000-memory.dmp

    Filesize

    4KB

  • memory/2864-78-0x000000001C250000-0x000000001C71E000-memory.dmp

    Filesize

    4.8MB

  • memory/2864-77-0x000000001BC50000-0x000000001BCF6000-memory.dmp

    Filesize

    664KB

  • memory/2864-81-0x000000001C8E0000-0x000000001C92C000-memory.dmp

    Filesize

    304KB

  • memory/2864-79-0x000000001C7C0000-0x000000001C85C000-memory.dmp

    Filesize

    624KB

  • memory/2864-80-0x0000000001510000-0x0000000001518000-memory.dmp

    Filesize

    32KB

  • memory/3592-21-0x00000000752C0000-0x0000000075871000-memory.dmp

    Filesize

    5.7MB

  • memory/3592-1-0x00000000752C0000-0x0000000075871000-memory.dmp

    Filesize

    5.7MB

  • memory/3592-0-0x00000000752C2000-0x00000000752C3000-memory.dmp

    Filesize

    4KB

  • memory/3592-2-0x00000000752C0000-0x0000000075871000-memory.dmp

    Filesize

    5.7MB

  • memory/3592-6-0x00000000752C0000-0x0000000075871000-memory.dmp

    Filesize

    5.7MB

  • memory/3592-4-0x00000000752C2000-0x00000000752C3000-memory.dmp

    Filesize

    4KB

  • memory/4280-10-0x00000000059C0000-0x0000000005A26000-memory.dmp

    Filesize

    408KB

  • memory/4280-41-0x0000000007A00000-0x000000000807A000-memory.dmp

    Filesize

    6.5MB

  • memory/4280-42-0x00000000073B0000-0x00000000073CA000-memory.dmp

    Filesize

    104KB

  • memory/4280-43-0x0000000007410000-0x000000000741A000-memory.dmp

    Filesize

    40KB

  • memory/4280-44-0x0000000007610000-0x00000000076A6000-memory.dmp

    Filesize

    600KB

  • memory/4280-45-0x0000000073040000-0x00000000737F1000-memory.dmp

    Filesize

    7.7MB

  • memory/4280-48-0x0000000073040000-0x00000000737F1000-memory.dmp

    Filesize

    7.7MB

  • memory/4280-40-0x0000000007280000-0x0000000007323000-memory.dmp

    Filesize

    652KB

  • memory/4280-39-0x0000000073040000-0x00000000737F1000-memory.dmp

    Filesize

    7.7MB

  • memory/4280-38-0x0000000073040000-0x00000000737F1000-memory.dmp

    Filesize

    7.7MB

  • memory/4280-37-0x0000000006660000-0x000000000667E000-memory.dmp

    Filesize

    120KB

  • memory/4280-25-0x0000000007230000-0x0000000007262000-memory.dmp

    Filesize

    200KB

  • memory/4280-36-0x0000000073040000-0x00000000737F1000-memory.dmp

    Filesize

    7.7MB

  • memory/4280-26-0x000000006F900000-0x000000006F94C000-memory.dmp

    Filesize

    304KB

  • memory/4280-24-0x0000000006080000-0x00000000060CC000-memory.dmp

    Filesize

    304KB

  • memory/4280-23-0x0000000006040000-0x000000000605E000-memory.dmp

    Filesize

    120KB

  • memory/4280-22-0x0000000005AA0000-0x0000000005DF7000-memory.dmp

    Filesize

    3.3MB

  • memory/4280-11-0x0000000005A30000-0x0000000005A96000-memory.dmp

    Filesize

    408KB

  • memory/4280-9-0x0000000005010000-0x0000000005032000-memory.dmp

    Filesize

    136KB

  • memory/4280-8-0x0000000005180000-0x000000000584A000-memory.dmp

    Filesize

    6.8MB

  • memory/4280-7-0x0000000073040000-0x00000000737F1000-memory.dmp

    Filesize

    7.7MB

  • memory/4280-5-0x00000000026B0000-0x00000000026E6000-memory.dmp

    Filesize

    216KB

  • memory/4280-3-0x000000007304E000-0x000000007304F000-memory.dmp

    Filesize

    4KB