Analysis

  • max time kernel
    94s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/11/2024, 06:48

General

  • Target

    2024-11-10_de04995b99a2d948120a85e4d4be1b44_cryptolocker.exe

  • Size

    83KB

  • MD5

    de04995b99a2d948120a85e4d4be1b44

  • SHA1

    ca38dfd1c8ec03bfe56cbf6419997c3632f9fab4

  • SHA256

    e305bdef84eabe914fd1e6f7b413d55b0e46e9ded4adfb2f60182d9ded30f270

  • SHA512

    4a3ceb0da5ae19649131a2bdcdcc3704eba4b61952e5d1eabb404e7c69a68d3725a42e35c3710d8ada1142d489151a107f3b2f74e81c1b00ed60e857cc491bb4

  • SSDEEP

    1536:zj+soPSMOtEvwDpj4ktBl01hJ0tq1ky7Qix:zCsanOtEvwDpjW

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
  • UPX packed file 4 IoCs

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

  • 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\2024-11-10_de04995b99a2d948120a85e4d4be1b44_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-10_de04995b99a2d948120a85e4d4be1b44_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4652
    • 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:1372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    83KB

    MD5

    d43274dd4bcdd6aa18d096610702b94b

    SHA1

    f8464d32afbcf3a8c91b42d26af807889164807d

    SHA256

    d383b7f930989cd8641ef78865c141fe8b86dd0b1c119f40f03d6b85434f1ece

    SHA512

    5f8bc874b078407f63fae7349b60b051c92775aa9013196e7f9ff6338ae34cd831e3d517279eebaa3d10d10b266900aeb7a54049f9b1e2685a1ced0fd4df99c5

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1372-19-0x00000000007D0000-0x00000000007D6000-memory.dmp

    Filesize

    24KB

  • memory/1372-25-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/1372-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4652-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4652-1-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/4652-2-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/4652-3-0x0000000000650000-0x0000000000656000-memory.dmp

    Filesize

    24KB

  • memory/4652-18-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB