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Analysis

  • max time kernel
    101s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/07/2024, 07:28

General

  • Target

    7bce0437d8dd3e343e1cd207ad71aa20N.exe

  • Size

    490KB

  • MD5

    7bce0437d8dd3e343e1cd207ad71aa20

  • SHA1

    420576543e75f215ea357467a127058b94d1d136

  • SHA256

    24d06d9db20ce0b44896ac3e02b99a032b7ad5b8c884ffa30046e1d41b7e9c6d

  • SHA512

    c15735260e24768eb8881e37348cd4a90374f19d7f8c2c7e3d5380e86f4f216a249c2e3551be3169f7a34dc938b65d19ad29c81b7888aa63d29951d3e0da9a4f

  • SSDEEP

    12288:hHJj3R/vGJl1xLdNb9l+FfeHO9HfxuvCM:hHx3R/voDpQCc2Z

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\7bce0437d8dd3e343e1cd207ad71aa20N.exe
    "C:\Users\Admin\AppData\Local\Temp\7bce0437d8dd3e343e1cd207ad71aa20N.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2756
    • C:\Users\Admin\AppData\Local\Temp\n5926\s5926.exe
      "C:\Users\Admin\AppData\Local\Temp\n5926\s5926.exe" ins.exe /t 5387a629561ca3d94e8b4704 /e 12738328 /u c2b30e9f-da98-11e3-8a58-80c16e6f498c /v "C:\Users\Admin\AppData\Local\Temp\7bce0437d8dd3e343e1cd207ad71aa20N.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2424
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2756 -s 4472
      2⤵
      • Program crash
      PID:4384
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 2756 -ip 2756
    1⤵
      PID:2972

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Local\Temp\n5926\s5926.exe

      Filesize

      284KB

      MD5

      9e24fe7dce5a39ec33319909e3e2e9de

      SHA1

      492d86466cd12c98803a262672cb5171f341e8d1

      SHA256

      05cdd536227ac4ebab76770ed3b2bbc364deb8cfdc1f6a6f598ecb86aa3d268f

      SHA512

      155b353506ef81cf0149178f8dc4b75575dbd0a2d2912038dac1278d8db454fb80edfd84958ebfeb6a3ef9c5de19af1284224bf7bb4af7113c863c3b1be1f4e1

    • memory/2424-11-0x00007FFD2E865000-0x00007FFD2E866000-memory.dmp

      Filesize

      4KB

    • memory/2424-12-0x00007FFD2E5B0000-0x00007FFD2EF51000-memory.dmp

      Filesize

      9.6MB

    • memory/2424-13-0x0000000000C50000-0x0000000000C5A000-memory.dmp

      Filesize

      40KB

    • memory/2424-16-0x00007FFD2E5B0000-0x00007FFD2EF51000-memory.dmp

      Filesize

      9.6MB

    • memory/2424-17-0x000000001B6B0000-0x000000001BB7E000-memory.dmp

      Filesize

      4.8MB

    • memory/2424-18-0x000000001BC20000-0x000000001BCBC000-memory.dmp

      Filesize

      624KB

    • memory/2424-19-0x0000000000C40000-0x0000000000C48000-memory.dmp

      Filesize

      32KB

    • memory/2424-20-0x00007FFD2E5B0000-0x00007FFD2EF51000-memory.dmp

      Filesize

      9.6MB

    • memory/2424-21-0x00007FFD2E5B0000-0x00007FFD2EF51000-memory.dmp

      Filesize

      9.6MB

    • memory/2424-22-0x00007FFD2E5B0000-0x00007FFD2EF51000-memory.dmp

      Filesize

      9.6MB

    • memory/2424-23-0x00007FFD2E5B0000-0x00007FFD2EF51000-memory.dmp

      Filesize

      9.6MB

    • memory/2424-24-0x000000001D2A0000-0x000000001D302000-memory.dmp

      Filesize

      392KB

    • memory/2424-25-0x000000001F680000-0x000000001F7BC000-memory.dmp

      Filesize

      1.2MB

    • memory/2424-26-0x000000001FCD0000-0x00000000201DE000-memory.dmp

      Filesize

      5.1MB

    • memory/2424-27-0x00007FFD2E5B0000-0x00007FFD2EF51000-memory.dmp

      Filesize

      9.6MB

    • memory/2424-29-0x00007FFD2E5B0000-0x00007FFD2EF51000-memory.dmp

      Filesize

      9.6MB