Analysis

  • max time kernel
    139s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/08/2024, 03:49

General

  • Target

    2024-08-10_21072090005d2c3bb3484c34fe374479_cryptolocker.exe

  • Size

    30KB

  • MD5

    21072090005d2c3bb3484c34fe374479

  • SHA1

    f20c03d711a2373edbe5cd3fc79decfea7208c40

  • SHA256

    2f52cf797f40794e0dd86f9845620ca734d31c189596c271e5c2f5c92b11988d

  • SHA512

    effe12456c5a40218ff506b6f1b61d9bc60a32f3a053b13f41565265a619e26977118f4548d5587db7a43174dd3960217ce5909dcea1687720584532c272bff5

  • SSDEEP

    384:v0VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26Rsn1rCcOQtOOtEvwDpjqIGRS/Vb9hz:vQz7yVEhs9+js1SQtOOtEvwDpjz9+9s

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\2024-08-10_21072090005d2c3bb3484c34fe374479_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-10_21072090005d2c3bb3484c34fe374479_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3868
    • 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:3404

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    30KB

    MD5

    3afe1d44d5e5ee0e8944b8597edde89a

    SHA1

    b9e1844d9e2f590cc99e72e9ddf256f27d5e23a4

    SHA256

    4cd6d3e73f25362cc3ea25cab7df1245a0dd6c66e58b952d58dcc087b91dab88

    SHA512

    793ab3f9390efeaeadcf44e005127a3a647fa0ecb0b6d8f8bb27e147535e959e21f2619bf0eaaa8b156d1937a2e5c28efcd1273962eba65ed4510791cebc2b6e

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3404-17-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/3404-23-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/3868-0-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/3868-1-0x00000000004C0000-0x00000000004C6000-memory.dmp

    Filesize

    24KB

  • memory/3868-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

    Filesize

    24KB