Analysis

  • max time kernel
    137s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/01/2024, 12:33

General

  • Target

    2024-01-24_aedead16ce218cd26d0d5884f2dfcaab_cryptolocker.exe

  • Size

    57KB

  • MD5

    aedead16ce218cd26d0d5884f2dfcaab

  • SHA1

    44037aad39cbabab3d815150021b927b78d6f2ce

  • SHA256

    a97d1ce3f844cc2d1a4e9c7984e82a3e7ecb544533b3485f603dc982133c1160

  • SHA512

    a277281d198b297311f31de58e7aec5a7269fea530d367a23e3f0e3169019fb7f9442bed1462072e179f4132b512275252ad6582c50a1d8ed7cbb4d737d123d0

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZgBh8i6g7GoFwQ:xj+VGMOtEvwDpjubEgywQ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-24_aedead16ce218cd26d0d5884f2dfcaab_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-24_aedead16ce218cd26d0d5884f2dfcaab_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:3208

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\misid.exe

          Filesize

          57KB

          MD5

          b8421ef6ddbe21ae5e84a390cfb4f7cd

          SHA1

          0451de6e42d49015021553e9baf50aa6119b1523

          SHA256

          36a6402e5e6ff0c44ad21ad6fc5f0ed495ad5c5c235295feecbff0b65c5c0e28

          SHA512

          4c9b2ec2a5f7fe5ece291dcf4fb32f2445ea2ecb6546b4529627be6aeb802972bcacad2035f9c49568aa911c9e0dc739e0a217116e349fe19346c67716212244

        • C:\Users\Admin\AppData\Local\Temp\misids.exe

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/2032-0-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/2032-1-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/2032-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/2032-3-0x0000000002080000-0x0000000002086000-memory.dmp

          Filesize

          24KB

        • memory/2032-16-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3208-18-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB

        • memory/3208-20-0x0000000000670000-0x0000000000676000-memory.dmp

          Filesize

          24KB

        • memory/3208-21-0x0000000002100000-0x0000000002106000-memory.dmp

          Filesize

          24KB

        • memory/3208-49-0x0000000000500000-0x0000000000510000-memory.dmp

          Filesize

          64KB