Analysis

  • max time kernel
    3s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/01/2024, 05:58

General

  • Target

    2024-01-09_951fee48f3b71e559277458a83a8adfe_cryptolocker.exe

  • Size

    64KB

  • MD5

    951fee48f3b71e559277458a83a8adfe

  • SHA1

    5b69d7e2ffc76e89ba7972f0f417b5e1d828f167

  • SHA256

    af67ee124a582e7e3999164a79f95b3ddcdfe3fd36ad158f584f680ed2ca1d06

  • SHA512

    6aaba0e26eef32605a7f2d80661c5a1629fbc0550bcb4a67717c2588ce4865484cb0a2002527f5ec10dc6108dab6a14a9fb89b245b647cf0dfc76e5c2e52c683

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HyCyh7vtRJ4BqKb1knzhl:vCjsIOtEvwDpj5Hv0j

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 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\2024-01-09_951fee48f3b71e559277458a83a8adfe_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-09_951fee48f3b71e559277458a83a8adfe_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2024
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      • Modifies system certificate store
      PID:3328

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    10KB

    MD5

    d266188f3196d5fb0ee42e80e018c370

    SHA1

    b4d87ef918b39456c9ea07f32e2d4220a590f93b

    SHA256

    6e545eb2ac862c727acfd8936599f30d63008fd235dbcab5e2c473457bf1219e

    SHA512

    54aa51fe8c7747b0fec96b162f10f29afc2e4639dfef842febfbfaddd85bb3f208fce2367c9292ad3b06fad7be26be2673bb964e0112f8db47c12f0fa9d0f6b0

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

    Filesize

    33KB

    MD5

    33db8e7372151d5b45e964ba9931cf9e

    SHA1

    8b1914c9d2aa119fc0914d65a71637767bcbf22b

    SHA256

    7ef8bdd66afd32c9b844b2076409b3053aad404bce23980bb0ca8fe7eb874156

    SHA512

    81f9e631473cbc1f6bdcf07b1b6d9cfbcaa79ef8f81b39ead89fcdf34caf7055c46ba900e1fa08869de06724e9acf766f5ccf66e5e12d4b217da5fc970834435

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

    Filesize

    1KB

    MD5

    a8f017691b7df9d4a2002920b1b21c52

    SHA1

    bf2bd9d69faa785604567ca0f1e3a6562702eab8

    SHA256

    73375dd9e9d51c6ebede5b229e10f19e52b05671dd9ec34ced589b1c10e3f9eb

    SHA512

    04866109c40de3ec1673548a5b68cc74fb80596d9e8ae2f399d176f65fc727a769c8c9433f7b8cc4ca7411c83ed372f70f68ea894a6f232327e49d29745275bf

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2024-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/2024-2-0x0000000000610000-0x0000000000616000-memory.dmp

    Filesize

    24KB

  • memory/2024-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/3328-17-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/3328-23-0x0000000000730000-0x0000000000736000-memory.dmp

    Filesize

    24KB