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Analysis

  • max time kernel
    3s
  • max time network
    5s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 17:57

Errors

Reason
Machine shutdown: "{\"level\":\"info\",\"time\":\"2024-04-25T17:58:42Z\",\"message\":\"Dirty snapshot: /var/lib/sandbox/hatchvm/win10v2004-20240412-en/instance_22-dirty.qcow2\"}"

General

  • Target

    Ana.exe

  • Size

    2.1MB

  • MD5

    f571faca510bffe809c76c1828d44523

  • SHA1

    7a3ca1660f0a513316b8cd5496ac7dbe82f0e0c2

  • SHA256

    117d7af0deb40b3fe532bb6cbe374884fa55ed7cfe053fe698720cdccb5a59cb

  • SHA512

    a08bca2fb1387cc70b737520d566c7117aa3fdb9a52f5dbb0bb7be44630da7977882d8c808cbee843c8a180777b4ac5819e8bafda6b2c883e380dc7fb5358a51

  • SSDEEP

    49152:OwVYlfBUDiZx8Fa/Q0NuB3btlnCItWNSwoy:OxPUDQmso0NuBZlnCItM

Malware Config

Signatures

  • Checks BIOS information in registry 2 TTPs 1 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 5 IoCs
  • UPX packed file 9 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Ana.exe
    "C:\Users\Admin\AppData\Local\Temp\Ana.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3524
    • C:\Users\Admin\AppData\Local\Temp\AV.EXE
      "C:\Users\Admin\AppData\Local\Temp\AV.EXE"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2056
    • C:\Users\Admin\AppData\Local\Temp\AV2.EXE
      "C:\Users\Admin\AppData\Local\Temp\AV2.EXE"
      2⤵
      • Executes dropped EXE
      PID:552
    • C:\Users\Admin\AppData\Local\Temp\DB.EXE
      "C:\Users\Admin\AppData\Local\Temp\DB.EXE"
      2⤵
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1092
      • C:\Windows\SysWOW64\cmd.exe
        /c C:\Users\Admin\AppData\Local\Temp\~unins6906.bat "C:\Users\Admin\AppData\Local\Temp\DB.EXE"
        3⤵
          PID:1280
      • C:\Users\Admin\AppData\Local\Temp\EN.EXE
        "C:\Users\Admin\AppData\Local\Temp\EN.EXE"
        2⤵
        • Executes dropped EXE
        PID:3188
      • C:\Users\Admin\AppData\Local\Temp\SB.EXE
        "C:\Users\Admin\AppData\Local\Temp\SB.EXE"
        2⤵
        • Executes dropped EXE
        • Writes to the Master Boot Record (MBR)
        • Suspicious use of AdjustPrivilegeToken
        PID:3208

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\AV.EXE

      Filesize

      1.1MB

      MD5

      f284568010505119f479617a2e7dc189

      SHA1

      e23707625cce0035e3c1d2255af1ed326583a1ea

      SHA256

      26c8f13ea8dc17443a9fa005610537cb6700aebaf748e747e9278d504e416eb1

      SHA512

      ebe96e667dfde547c5a450b97cd7534b977f4073c7f4cbc123a0e00baaefeb3be725c1cafbfb5bb040b3359267954cd1b4e2094ef71fc273732016ee822064bf

    • C:\Users\Admin\AppData\Local\Temp\AV2.EXE

      Filesize

      368KB

      MD5

      014578edb7da99e5ba8dd84f5d26dfd5

      SHA1

      df56d701165a480e925a153856cbc3ab799c5a04

      SHA256

      4ce5e8b510895abb204f97e883d8cbaacc29ccef0844d9ae81f8666f234b0529

      SHA512

      bd5159af96d83fc7528956c5b1bd6f93847db18faa0680c6041f87bbebef5e3ba2de1f185d77ff28b8d7d78ec4f7bd54f48b37a16da39f43314ef022b4a36068

    • C:\Users\Admin\AppData\Local\Temp\DB.EXE

      Filesize

      243KB

      MD5

      c6746a62feafcb4fca301f606f7101fa

      SHA1

      e09cd1382f9ceec027083b40e35f5f3d184e485f

      SHA256

      b5a255d0454853c8afc0b321e1d86dca22c3dbefb88e5d385d2d72f9bc0109e6

      SHA512

      ee5dfa08c86bf1524666f0851c729970dbf0b397db9595a2bae01516299344edb68123e976592a83e492f2982fafe8d350ba2d41368eb4ecf4e6fe12af8f5642

    • C:\Users\Admin\AppData\Local\Temp\EN.EXE

      Filesize

      6KB

      MD5

      621f2279f69686e8547e476b642b6c46

      SHA1

      66f486cd566f86ab16015fe74f50d4515decce88

      SHA256

      c17a18cf2c243303b8a6688aad83b3e6e9b727fcd89f69065785ef7f1a2a3e38

      SHA512

      068402b02f1056b722f21b0a354b038f094d02e4a066b332553cd6b36e3640e8f35aa0499a2b057c566718c3593d3cea6bbabd961e04f0a001fd45d8be8e1c4e

    • C:\Users\Admin\AppData\Local\Temp\GB.EXE

      Filesize

      149KB

      MD5

      fe731b4c6684d643eb5b55613ef9ed31

      SHA1

      cfafe2a14f5413278304920154eb467f7c103c80

      SHA256

      e7953daad7a68f8634ded31a21a31f0c2aa394ca9232e2f980321f7b69176496

      SHA512

      f7756d69138df6d3b0ffa47bdf274e5fd8aab4fff9d68abe403728c8497ac58e0f3d28d41710de715f57b7a2b5daa2dd7e04450f19c6d013a08f543bd6fc9c2e

    • C:\Users\Admin\AppData\Local\Temp\SB.EXE

      Filesize

      224KB

      MD5

      9252e1be9776af202d6ad5c093637022

      SHA1

      6cc686d837cd633d9c2e8bc1eaba5fc364bf71d8

      SHA256

      ce822ff86e584f15b6abd14c61453bd3b481d4ec3fdeb961787fceb52acd8bd6

      SHA512

      98b1b3ce4d16d36f738478c6cf41e8f4a57d3a5ecfa8999d45592f79a469d8af8554bf4d5db34cb79cec71ce103f4fde1b41bd3cce30714f803e432e53da71ea

    • C:\Users\Admin\AppData\Local\Temp\tsa.crt

      Filesize

      1010B

      MD5

      6e630504be525e953debd0ce831b9aa0

      SHA1

      edfa47b3edf98af94954b5b0850286a324608503

      SHA256

      2563fe2f793f119a1bae5cca6eab9d8c20409aa1f1e0db341c623e1251244ef5

      SHA512

      bbcf285309a4d5605e19513c77ef077a4c451cbef04e3cbdfec6d15cc157a9800a7ff6f70964b0452ddb939ff50766e887904eda06a9999fdedf5b2e8776ebd2

    • memory/1092-71-0x00000000006B0000-0x0000000000743000-memory.dmp

      Filesize

      588KB

    • memory/1092-79-0x0000000000400000-0x0000000000445000-memory.dmp

      Filesize

      276KB

    • memory/1092-85-0x00000000006B0000-0x0000000000743000-memory.dmp

      Filesize

      588KB

    • memory/1092-52-0x00000000006B0000-0x0000000000743000-memory.dmp

      Filesize

      588KB

    • memory/1092-81-0x00000000008B0000-0x00000000008B1000-memory.dmp

      Filesize

      4KB

    • memory/1092-73-0x00000000006B0000-0x0000000000743000-memory.dmp

      Filesize

      588KB

    • memory/1092-80-0x00000000006B0000-0x0000000000743000-memory.dmp

      Filesize

      588KB

    • memory/1092-75-0x00000000001C0000-0x00000000001F1000-memory.dmp

      Filesize

      196KB

    • memory/2056-72-0x0000000073910000-0x0000000073EC1000-memory.dmp

      Filesize

      5.7MB

    • memory/2056-51-0x0000000073910000-0x0000000073EC1000-memory.dmp

      Filesize

      5.7MB

    • memory/2056-59-0x0000000001330000-0x0000000001340000-memory.dmp

      Filesize

      64KB

    • memory/3188-74-0x0000000000400000-0x000000000040A000-memory.dmp

      Filesize

      40KB

    • memory/3208-77-0x00000000007F0000-0x0000000000854000-memory.dmp

      Filesize

      400KB

    • memory/3208-78-0x00000000007FB000-0x00000000007FC000-memory.dmp

      Filesize

      4KB

    • memory/3208-76-0x0000000000400000-0x0000000000464000-memory.dmp

      Filesize

      400KB