Analysis

  • max time kernel
    2s
  • 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
    19-04-2024 10:23

Errors

Reason
Machine shutdown: "{\"level\":\"info\",\"time\":\"2024-04-19T10:24:04Z\",\"message\":\"Dirty snapshot: /var/lib/sandbox/hatchvm/win10v2004-20240412-en/instance_3-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.

  • 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:3628
    • 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:4108
    • C:\Users\Admin\AppData\Local\Temp\AV2.EXE
      "C:\Users\Admin\AppData\Local\Temp\AV2.EXE"
      2⤵
      • Executes dropped EXE
      PID:4188
    • 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
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4772
    • C:\Users\Admin\AppData\Local\Temp\EN.EXE
      "C:\Users\Admin\AppData\Local\Temp\EN.EXE"
      2⤵
      • Executes dropped EXE
      PID:1428
    • 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:1764

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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/1428-47-0x0000000000400000-0x000000000040A000-memory.dmp

    Filesize

    40KB

  • memory/1764-79-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1764-84-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/1764-81-0x000000000212B000-0x000000000212C000-memory.dmp

    Filesize

    4KB

  • memory/1764-80-0x0000000002120000-0x0000000002184000-memory.dmp

    Filesize

    400KB

  • memory/1764-78-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

  • memory/4108-66-0x0000000001990000-0x00000000019A0000-memory.dmp

    Filesize

    64KB

  • memory/4108-57-0x0000000073940000-0x0000000073EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/4108-61-0x0000000073940000-0x0000000073EF1000-memory.dmp

    Filesize

    5.7MB

  • memory/4772-77-0x0000000000520000-0x00000000005B3000-memory.dmp

    Filesize

    588KB

  • memory/4772-30-0x0000000000400000-0x0000000000445000-memory.dmp

    Filesize

    276KB

  • memory/4772-45-0x0000000000520000-0x00000000005B3000-memory.dmp

    Filesize

    588KB

  • memory/4772-44-0x00000000001C0000-0x00000000001F1000-memory.dmp

    Filesize

    196KB

  • memory/4772-59-0x0000000000520000-0x00000000005B3000-memory.dmp

    Filesize

    588KB

  • memory/4772-82-0x00000000009B0000-0x00000000009B1000-memory.dmp

    Filesize

    4KB

  • memory/4772-83-0x0000000000520000-0x00000000005B3000-memory.dmp

    Filesize

    588KB

  • memory/4772-56-0x0000000000520000-0x00000000005B3000-memory.dmp

    Filesize

    588KB