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Analysis

  • max time kernel
    151s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    15/10/2023, 19:42

General

  • Target

    a4c5b1b00a0f260c2dafa1c753018970_exe32.exe

  • Size

    144KB

  • MD5

    a4c5b1b00a0f260c2dafa1c753018970

  • SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

  • SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

  • SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • SSDEEP

    1536:PJg/NVWIHWAmJihqbzWh9GuUKzzcjoNP3ojR6MUAhCLR3Jz4kahylrfR+yIMpmG5:arVSlGh9Gx0zcjoRmR1Ud4kYKkOmHlI

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 7 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
    "C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
      71
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Loads dropped DLL
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2420
      • C:\Users\Admin\zuiriaw.exe
        "C:\Users\Admin\zuiriaw.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2780 -s 188
          4⤵
          • Loads dropped DLL
          • Program crash
          PID:2640

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • C:\Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • C:\Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • \Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • \Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • \Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • \Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • \Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • \Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • \Users\Admin\zuiriaw.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • memory/2420-25-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-30-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-2-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-26-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-27-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-28-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-29-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-4-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-31-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-32-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-33-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-34-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-35-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-36-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-37-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/2420-38-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB