Overview

overview

10

Static

static

10

235f0c4a95...d7.exe

windows7-x64

10

235f0c4a95...d7.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-12-2024 22:35

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General

  • Target

    235f0c4a95f3d2c1385a46b80162f25942a7b6042adb57d94953b1516e6a9cd7.exe

  • Size

    1.4MB

  • MD5

    00050cc64fda256683a37ead59da6275

  • SHA1

    b7c8995da847d362aed04019bbc123fcf6f4d8b5

  • SHA256

    235f0c4a95f3d2c1385a46b80162f25942a7b6042adb57d94953b1516e6a9cd7

  • SHA512

    ce805c8ee22a2ef33a725406c4c2292693af1cfc5baf6affa9643a94a51e1731d033984d27ca0d3e0f48ffee42ac0b26e5a88c9ee17480bbd5d48dc6d0aaeec7

  • SSDEEP

    24576:z1D1e9OI2aniISdRwENQzIAKoMC+VMPVK1nzS9eno8YdOwdY:/pIziJ4IjbePVgn4d

Score
10/10
njratdiscoveryevasionpersistenceprivilege_escalationtrojan

Malware Config

Signatures

  • Njrat family
    njrat
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

    trojannjrat
  • Modifies Windows Firewall 2 TTPs 1 IoCs
    evasion
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 35 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\235f0c4a95f3d2c1385a46b80162f25942a7b6042adb57d94953b1516e6a9cd7.exe
    "C:\Users\Admin\AppData\Local\Temp\235f0c4a95f3d2c1385a46b80162f25942a7b6042adb57d94953b1516e6a9cd7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Users\Admin\AppData\LocalrNEWJRGOiv.exe
      "C:\Users\Admin\AppData\LocalrNEWJRGOiv.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3176
      • C:\ProgramData\server.exe
        "C:\ProgramData\server.exe"
        3⤵
        • Drops startup file
        • Executes dropped EXE
        • Adds Run key to start application
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3520
        • C:\Windows\SysWOW64\netsh.exe
          netsh firewall add allowedprogram "C:\ProgramData\server.exe" "server.exe" ENABLE
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:1560
    • C:\Users\Admin\AppData\LocalJaYRZ_tRjj.exe
      "C:\Users\Admin\AppData\LocalJaYRZ_tRjj.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3640
      • C:\Windows\system32\cmd.exe
        C:\Windows\system32\cmd.exe /c certutil -hashfile "C:\Users\Admin\AppData\LocalJaYRZ_tRjj.exe" MD5 | find /i /v "md5" | find /i /v "certutil"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3412
        • C:\Windows\system32\certutil.exe
          certutil -hashfile "C:\Users\Admin\AppData\LocalJaYRZ_tRjj.exe" MD5
          4⤵
            PID:4048
          • C:\Windows\system32\find.exe
            find /i /v "md5"
            4⤵
              PID:3960
            • C:\Windows\system32\find.exe
              find /i /v "certutil"
              4⤵
                PID:3132

        Network

        MITRE ATT&CK Enterprise v15

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        1
        T1543

        Windows Service

        1
        T1543.003

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Privilege Escalation

        Boot or Logon Autostart Execution

        1
        T1547

        Registry Run Keys / Startup Folder

        1
        T1547.001

        Create or Modify System Process

        1
        T1543

        Windows Service

        1
        T1543.003

        Event Triggered Execution

        1
        T1546

        Netsh Helper DLL

        1
        T1546.007

        Defense Evasion

        Impair Defenses

        1
        T1562

        Disable or Modify System Firewall

        1
        T1562.004

        Modify Registry

        1
        T1112

        Credential Access

        Discovery

        Query Registry

        1
        T1012

        System Information Discovery

        2
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Web Service

        1
        T1102

        Exfiltration

        Impact

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalJaYRZ_tRjj.exe
          Filesize

          1.3MB

          MD5

          e0db5eb824428c7ee5385581eed7a95d

          SHA1

          0b5c44aac8b9d03eb71f8514600246c13aaed3ed

          SHA256

          a55489f508fccdff2ecbcf4a53e1ed712bf476770f1e72a006e47b68588e8830

          SHA512

          96be85c39eaf14c9667fd0e2e1b9ee60f0682b083a6b13958b7ac0fc6cdacf67194057e85ad3554f59472e53a5e1db5b04f83d166c1a331eba21ee97ea1a8504

          Download Submit

        • C:\Users\Admin\AppData\LocalrNEWJRGOiv.exe
          Filesize

          23KB

          MD5

          ae3376b1e421304b115712118b31297b

          SHA1

          27b7f9e8f1f88585c1315b702506f37ff3cfc835

          SHA256

          8f23fa0ac49aa466eccb028512df4d017ee119312ae49326b3fc63cf15080f47

          SHA512

          df930a274c17049c8de3639402ea383ecf93a78f569ea6e4e60ad5014750ef2c87c71d3c450adfc740a55dc9cc3b3cb641dc00641814b936dd4450127cd7e840

          Download Submit

        • memory/2672-0-0x00007FFBBA245000-0x00007FFBBA246000-memory.dmp

          Filesize

          4KB

          Download

        • memory/2672-1-0x00007FFBB9F90000-0x00007FFBBA931000-memory.dmp

          Filesize

          9.6MB

          Download

        • memory/2672-3-0x00007FFBB9F90000-0x00007FFBBA931000-memory.dmp

          Filesize

          9.6MB

          Download

        • memory/2672-20-0x00007FFBB9F90000-0x00007FFBBA931000-memory.dmp

          Filesize

          9.6MB

          Download

        • memory/3176-21-0x0000000074F92000-0x0000000074F93000-memory.dmp

          Filesize

          4KB

          Download

        • memory/3176-22-0x0000000074F90000-0x0000000075541000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3176-23-0x0000000074F90000-0x0000000075541000-memory.dmp

          Filesize

          5.7MB

          Download

        • memory/3176-40-0x0000000074F90000-0x0000000075541000-memory.dmp

          Filesize

          5.7MB

          Download