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Analysis

  • max time kernel
    205s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    06/12/2022, 02:17

General

  • Target

    cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6.exe

  • Size

    484KB

  • MD5

    4cbfab996ac0b42ab08e0bc9405aca1a

  • SHA1

    b6c2723405b76f8701f5665a4633828f93df68e7

  • SHA256

    cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6

  • SHA512

    041018d06049ae9cf36ad0ec9c7af96c7176b0a467b24687fa312b94ff0faeb2aaa9fb59d475b0f5fce5ed52dfd266b3a23ead70ae592e87fef0cf3b1b4e7a48

  • SSDEEP

    12288:2INGjfjmd+pNlAMUozPz/VG+KCIxGJgfxgf:LNGjb9Ayh0CIMJ

Score
8/10

Malware Config

Signatures

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

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

  • Kills process with taskkill 1 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 39 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6.exe
    "C:\Users\Admin\AppData\Local\Temp\cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 2024 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6.exe" & start C:\Users\Admin\AppData\Local\LNOUKK~1.EXE -f
      2⤵
      • Deletes itself
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1136
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /f /pid 2024
        3⤵
        • Kills process with taskkill
        • Suspicious use of AdjustPrivilegeToken
        PID:768
      • C:\Windows\SysWOW64\PING.EXE
        ping -n 3 127.1
        3⤵
        • Runs ping.exe
        PID:868
      • C:\Users\Admin\AppData\Local\lnoukkbniq.exe
        C:\Users\Admin\AppData\Local\LNOUKK~1.EXE -f
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:672

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\lnoukkbniq.exe

    Filesize

    484KB

    MD5

    4cbfab996ac0b42ab08e0bc9405aca1a

    SHA1

    b6c2723405b76f8701f5665a4633828f93df68e7

    SHA256

    cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6

    SHA512

    041018d06049ae9cf36ad0ec9c7af96c7176b0a467b24687fa312b94ff0faeb2aaa9fb59d475b0f5fce5ed52dfd266b3a23ead70ae592e87fef0cf3b1b4e7a48

  • C:\Users\Admin\AppData\Local\lnoukkbniq.exe

    Filesize

    484KB

    MD5

    4cbfab996ac0b42ab08e0bc9405aca1a

    SHA1

    b6c2723405b76f8701f5665a4633828f93df68e7

    SHA256

    cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6

    SHA512

    041018d06049ae9cf36ad0ec9c7af96c7176b0a467b24687fa312b94ff0faeb2aaa9fb59d475b0f5fce5ed52dfd266b3a23ead70ae592e87fef0cf3b1b4e7a48

  • \Users\Admin\AppData\Local\lnoukkbniq.exe

    Filesize

    484KB

    MD5

    4cbfab996ac0b42ab08e0bc9405aca1a

    SHA1

    b6c2723405b76f8701f5665a4633828f93df68e7

    SHA256

    cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6

    SHA512

    041018d06049ae9cf36ad0ec9c7af96c7176b0a467b24687fa312b94ff0faeb2aaa9fb59d475b0f5fce5ed52dfd266b3a23ead70ae592e87fef0cf3b1b4e7a48

  • \Users\Admin\AppData\Local\lnoukkbniq.exe

    Filesize

    484KB

    MD5

    4cbfab996ac0b42ab08e0bc9405aca1a

    SHA1

    b6c2723405b76f8701f5665a4633828f93df68e7

    SHA256

    cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6

    SHA512

    041018d06049ae9cf36ad0ec9c7af96c7176b0a467b24687fa312b94ff0faeb2aaa9fb59d475b0f5fce5ed52dfd266b3a23ead70ae592e87fef0cf3b1b4e7a48

  • \Users\Admin\AppData\Local\lnoukkbniq.exe

    Filesize

    484KB

    MD5

    4cbfab996ac0b42ab08e0bc9405aca1a

    SHA1

    b6c2723405b76f8701f5665a4633828f93df68e7

    SHA256

    cbff35f58791a79553e070ff74011dbdc5bd8d401075144cbaf38678e325b0b6

    SHA512

    041018d06049ae9cf36ad0ec9c7af96c7176b0a467b24687fa312b94ff0faeb2aaa9fb59d475b0f5fce5ed52dfd266b3a23ead70ae592e87fef0cf3b1b4e7a48

  • memory/672-67-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB

  • memory/672-68-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB

  • memory/2024-57-0x0000000001000000-0x00000000010A6000-memory.dmp

    Filesize

    664KB

  • memory/2024-54-0x0000000075881000-0x0000000075883000-memory.dmp

    Filesize

    8KB

  • memory/2024-56-0x0000000000220000-0x0000000000226000-memory.dmp

    Filesize

    24KB