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Analysis

  • max time kernel
    159s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-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 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 27 IoCs
  • Maps connected drives based on registry 3 TTPs 4 IoCs

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

  • Drops autorun.inf file 1 TTPs 1 IoCs

    Malware can abuse Windows Autorun to spread further via attached volumes.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 21 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:2548
    • C:\Users\Admin\AppData\Local\Temp\a4c5b1b00a0f260c2dafa1c753018970_exe32.exe
      71
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Checks computer location settings
      • Adds Run key to start application
      • Maps connected drives based on registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4964
      • C:\Users\Admin\tjhif.exe
        "C:\Users\Admin\tjhif.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3236
        • C:\Users\Admin\tjhif.exe
          71
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Executes dropped EXE
          • Adds Run key to start application
          • Maps connected drives based on registry
          • Drops autorun.inf file
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of SetWindowsHookEx
          PID:1400

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\tjhif.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • C:\Users\Admin\tjhif.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • C:\Users\Admin\tjhif.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • C:\Users\Admin\tjhif.exe

    Filesize

    144KB

    MD5

    a4c5b1b00a0f260c2dafa1c753018970

    SHA1

    4fe1bfcc3bf8b0a514bd93f5285b57538d3f3bd7

    SHA256

    9a92929388c7e26f4be359568b1686645f0c16d0f9d55273e8e67302933c06d2

    SHA512

    e6dd45d519210c47d24426792323e84604373cffdfc991a5405469c15a53348c934071a533f089642d66c4b8a71de93662c2e8d3c48e2685b90cf6aceae7ed0e

  • memory/1400-84-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-88-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-90-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-86-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-74-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-48-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-82-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-62-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-80-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-70-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-78-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-72-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/1400-76-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-73-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-75-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-2-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-77-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-71-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-79-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-69-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-81-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-61-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-83-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-47-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-85-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-46-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-87-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-39-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-89-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB

  • memory/4964-4-0x0000000000400000-0x0000000000413000-memory.dmp

    Filesize

    76KB