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Analysis

  • max time kernel
    158s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23/05/2024, 16:21

General

  • Target

    7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe

  • Size

    4.9MB

  • MD5

    46fe3868eb21e261bedf7e03b7e7245b

  • SHA1

    d17aa74a71e53ae65124fe0eacaafd05dbe1362f

  • SHA256

    7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7

  • SHA512

    6626896b3ca11b7f0947b03f759f3fb5b2908ca19f9552a7372836a7fcabb9a11343e2bb74b09285caea66dfe16627ad40f50a722c64e5053103a0fd60242c37

  • SSDEEP

    98304:6hUCd5V5Z8mRT4DaEYvX1xkEqNJfX4eDkwT4mQfD1W3Xjin55:6hUC3fTTEi1xkEqPfo+0m218en5

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
    "C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4548
    • C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe
      C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7.exe -a -d
      2⤵
      • Loads dropped DLL
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4104
      • C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe
        "C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4576
        • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
          dw20.exe -x -s 948
          4⤵
          • Checks processor information in registry
          • Enumerates system info in registry
          • Suspicious use of AdjustPrivilegeToken
          PID:2480
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3976 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4060

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\7b734bfd2af42a7dfce129c528a9142f7b1da414397cae35a6a9ec03be95b1f7_app.exe

      Filesize

      1.7MB

      MD5

      69cf2b711bad89ba2cb3213cb5782892

      SHA1

      d593eba84acfa46d0c65198e7459e644fa8a4fb1

      SHA256

      83ddf946528405ac0851391d3e717044868ba1021ad853fbf979dd915109f9b3

      SHA512

      fdf7ba32bf176d9c04ffa0485fa411856d3cadf001243cebdbae4aafd1b2554b0cbb007b5d46c246168e84c53ca54420979b76ef71bab43197a56a93da0aefbe

    • C:\Users\Admin\AppData\Local\Temp\cyyundun.dll

      Filesize

      332KB

      MD5

      8722259b998800a37c3991c58ce64f96

      SHA1

      d370272422272eaf9aca8bc17ba9bcba1b83df70

      SHA256

      b115d63bee020042256019ee14fa0570483180e29c4deb7ed5b8fab522b05244

      SHA512

      867872e22769ecdba19daca70d6ef2bbb9e310abd90ddd1c3ff5b9a3375ef11488f1f7ac021c579ab58b7e8125c8bada584a1e96bb15fcee5837307cb64a6857

    • memory/4104-13-0x0000000074540000-0x00000000745A7000-memory.dmp

      Filesize

      412KB

    • memory/4104-28-0x0000000074540000-0x00000000745A7000-memory.dmp

      Filesize

      412KB

    • memory/4548-4-0x0000000074B10000-0x0000000074B77000-memory.dmp

      Filesize

      412KB

    • memory/4548-6-0x0000000074B10000-0x0000000074B77000-memory.dmp

      Filesize

      412KB

    • memory/4576-18-0x0000000073912000-0x0000000073913000-memory.dmp

      Filesize

      4KB

    • memory/4576-19-0x0000000073910000-0x0000000073EC1000-memory.dmp

      Filesize

      5.7MB

    • memory/4576-20-0x0000000073910000-0x0000000073EC1000-memory.dmp

      Filesize

      5.7MB

    • memory/4576-27-0x0000000073910000-0x0000000073EC1000-memory.dmp

      Filesize

      5.7MB