Analysis

  • max time kernel
    95s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/09/2024, 04:24

General

  • Target

    2024-09-27_09376107a1a71680f041894890efc20a_cryptolocker.exe

  • Size

    87KB

  • MD5

    09376107a1a71680f041894890efc20a

  • SHA1

    ffa6258f918c14cec41f7c990b22296b4a99530a

  • SHA256

    e42796ca810f5150d01dd317f383d35e37e6c2424acf75fa5e13212d7ba52e62

  • SHA512

    05244781f7bb2157663b61d871646b5816322ff647ab0129fd81bc75c1fc120e4dd8c883c8c36d034955afc384c59198d87ccccfa711c7e8995ca63491acb433

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCs3:TCjsIOtEvwDpj5HE/OUHnSM7

Score
7/10

Malware Config

Signatures

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-27_09376107a1a71680f041894890efc20a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-27_09376107a1a71680f041894890efc20a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3844
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:2932

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    87KB

    MD5

    e454cfe97add7609d2bc512b8a1a12b4

    SHA1

    f44dfe1c72ed130be1a467c1350cc54975abb481

    SHA256

    d8bf00a364693d01e67dc49ce3e3ab4753b7808809ff26f82e990d041bc9c3d4

    SHA512

    804b70550fd799dfdafe8c15d8c7f386d095008f2051a399c9ee45d85de607aa1c99ae956ea7293bdcedea0760399703c9cd9f780f15c33cd37dcc2e322b3305

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2932-18-0x00000000006E0000-0x00000000006E6000-memory.dmp

    Filesize

    24KB

  • memory/2932-24-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/2932-47-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3844-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3844-1-0x0000000002290000-0x0000000002296000-memory.dmp

    Filesize

    24KB

  • memory/3844-2-0x0000000002290000-0x0000000002296000-memory.dmp

    Filesize

    24KB

  • memory/3844-3-0x0000000002180000-0x0000000002186000-memory.dmp

    Filesize

    24KB

  • memory/3844-48-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB