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Analysis

  • max time kernel
    17s
  • max time network
    19s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 20:33

General

  • Target

    Client.exe

  • Size

    547KB

  • MD5

    b87946891aa5a79edc4346f9ca654b9e

  • SHA1

    e28cd91dea39a78b05aa9886dd1972956f9b85e7

  • SHA256

    ec4d601c78d79d40972f3e172344d9f32eadd3fe902cc55d6f297f32a40bf3c6

  • SHA512

    f7054d2a8aa4d4d2a20d15f30690474976e25a238a4bac5b1444c01d38d11bd8e763d53d61173e3f5b792b60b5422b941e59d07ce19e7292e407f696854f234e

  • SSDEEP

    12288:UUJ9gdCrpfmRCbXNS46o7ik1JyMcbhMi07P:UvCrpfuCbNCyHZV

Score
10/10

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 34 IoCs
  • Suspicious use of SendNotifyMessage 34 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Client.exe
    "C:\Users\Admin\AppData\Local\Temp\Client.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Adds Run key to start application
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4456
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" /C SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Java Updater" /tr "C:\Program Files\Java\Client.exe" & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4928
      • C:\Windows\system32\schtasks.exe
        SchTaSKs /CrEAte /F /sc OnLoGoN /rl HighEst /tn "Java Updater" /tr "C:\Program Files\Java\Client.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:4588
    • C:\Windows\SYSTEM32\CMD.exe
      "CMD" /c SchTaSKs /create /f /sc minute /mo -1 /tn "JavaTaskmgr" /tr "C:\Program Files\Java\Client.exe" /RL HIGHEST & exit
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1032
      • C:\Windows\system32\schtasks.exe
        SchTaSKs /create /f /sc minute /mo -1 /tn "JavaTaskmgr" /tr "C:\Program Files\Java\Client.exe" /RL HIGHEST
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2604
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /7
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:4544

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Java\Client.exe

    Filesize

    547KB

    MD5

    b87946891aa5a79edc4346f9ca654b9e

    SHA1

    e28cd91dea39a78b05aa9886dd1972956f9b85e7

    SHA256

    ec4d601c78d79d40972f3e172344d9f32eadd3fe902cc55d6f297f32a40bf3c6

    SHA512

    f7054d2a8aa4d4d2a20d15f30690474976e25a238a4bac5b1444c01d38d11bd8e763d53d61173e3f5b792b60b5422b941e59d07ce19e7292e407f696854f234e

  • memory/4456-0-0x00007FFB946F3000-0x00007FFB946F5000-memory.dmp

    Filesize

    8KB

  • memory/4456-1-0x0000000000E90000-0x0000000000F1A000-memory.dmp

    Filesize

    552KB

  • memory/4456-2-0x00007FFB946F3000-0x00007FFB946F5000-memory.dmp

    Filesize

    8KB

  • memory/4544-15-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB

  • memory/4544-5-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB

  • memory/4544-4-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB

  • memory/4544-14-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB

  • memory/4544-13-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB

  • memory/4544-12-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB

  • memory/4544-11-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB

  • memory/4544-10-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB

  • memory/4544-9-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB

  • memory/4544-3-0x000001F3A22C0000-0x000001F3A22C1000-memory.dmp

    Filesize

    4KB