Analysis

  • max time kernel
    150s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    14-12-2024 02:08

General

  • Target

    0a5fe6735794d87d1cb917aa4b92947f571eff6b5541008cc1f76a666df4fbfb.exe

  • Size

    65KB

  • MD5

    915756ae44759560e8476467163b0f5d

  • SHA1

    02c6eeb6a68c4fab801061321645c3cf118b823a

  • SHA256

    0a5fe6735794d87d1cb917aa4b92947f571eff6b5541008cc1f76a666df4fbfb

  • SHA512

    4d7b862f7e4dd4856eac8e5982eb7ed10afddb943661b84cd8f06293fed80e26a65595a89b6abdd1d99bd6154791169006a6d0a4f572de756a691cfb9889049c

  • SSDEEP

    1536:bukC8Q3PoN36tJQviFw1noU5BnvA7fLteF3nLrB9z3n+aF9buS9vM:bukC8Q3PoN36tJQviFCocBnIfWl9zOa+

Malware Config

Extracted

Family

njrat

Version

Platinum

Botnet

HacKed

C2

127.0.0.1:25565

Mutex

dllhost.exe

Attributes
  • reg_key

    dllhost.exe

  • splitter

    |Ghost|

Signatures

  • Njrat family
  • njRAT/Bladabindi

    Widely used RAT written in .NET.

  • Deletes itself 1 IoCs
  • Drops startup file 3 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 24 IoCs

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

  • Kills process with taskkill 6 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 38 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0a5fe6735794d87d1cb917aa4b92947f571eff6b5541008cc1f76a666df4fbfb.exe
    "C:\Users\Admin\AppData\Local\Temp\0a5fe6735794d87d1cb917aa4b92947f571eff6b5541008cc1f76a666df4fbfb.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2824
    • C:\ProgramData\dllhost.exe
      "C:\ProgramData\dllhost.exe"
      2⤵
      • 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:2800
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f im Wireshark.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        PID:1944
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:448
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\ProgramData\dllhost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:580
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f im Wireshark.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        PID:3024
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2664
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\ProgramData\dllhost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2920
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f im Wireshark.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        PID:1244
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:848
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\ProgramData\dllhost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2304
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f im Wireshark.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        PID:2248
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2452
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\ProgramData\dllhost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2164
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f im Wireshark.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        PID:968
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:296
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\ProgramData\dllhost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:1216
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f im Wireshark.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Kills process with taskkill
        PID:1908
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /delete /tn "MicrosoftEdgeUpdateTaskMachine" /f
        3⤵
        • System Location Discovery: System Language Discovery
        PID:772
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /sc minute /mo 1 /tn "MicrosoftEdgeUpdateTaskMachine" /tr C:\ProgramData\dllhost.exe
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:2512
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /C choice /C Y /N /D Y /T 5 & Del "C:\Users\Admin\AppData\Local\Temp\0a5fe6735794d87d1cb917aa4b92947f571eff6b5541008cc1f76a666df4fbfb.exe"
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2600
      • C:\Windows\SysWOW64\choice.exe
        choice /C Y /N /D Y /T 5
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1948
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {9A4ABECF-3A2B-4D2A-92FD-E77E863C55EA} S-1-5-21-4177215427-74451935-3209572229-1000:JSMURNPT\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3044
    • C:\ProgramData\dllhost.exe
      C:\ProgramData\dllhost.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:3060
    • C:\ProgramData\dllhost.exe
      C:\ProgramData\dllhost.exe
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      PID:1664

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \ProgramData\dllhost.exe

    Filesize

    65KB

    MD5

    915756ae44759560e8476467163b0f5d

    SHA1

    02c6eeb6a68c4fab801061321645c3cf118b823a

    SHA256

    0a5fe6735794d87d1cb917aa4b92947f571eff6b5541008cc1f76a666df4fbfb

    SHA512

    4d7b862f7e4dd4856eac8e5982eb7ed10afddb943661b84cd8f06293fed80e26a65595a89b6abdd1d99bd6154791169006a6d0a4f572de756a691cfb9889049c

  • memory/2800-10-0x00000000747F0000-0x0000000074D9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2800-12-0x00000000747F0000-0x0000000074D9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2800-13-0x00000000747F0000-0x0000000074D9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2800-17-0x00000000747F0000-0x0000000074D9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2800-18-0x00000000747F0000-0x0000000074D9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2800-19-0x00000000747F0000-0x0000000074D9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2824-0-0x00000000747F1000-0x00000000747F2000-memory.dmp

    Filesize

    4KB

  • memory/2824-1-0x00000000747F0000-0x0000000074D9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2824-2-0x00000000747F0000-0x0000000074D9B000-memory.dmp

    Filesize

    5.7MB

  • memory/2824-11-0x00000000747F0000-0x0000000074D9B000-memory.dmp

    Filesize

    5.7MB