Analysis

  • max time kernel
    134s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-08-2023 17:13

General

  • Target

    1a0e6e4d38acb1f7b2fbb2ba4eced4b0_cryptolocker_JC.exe

  • Size

    60KB

  • MD5

    1a0e6e4d38acb1f7b2fbb2ba4eced4b0

  • SHA1

    c564b0d6f228eec74d183a93ee6ab47156d0fea0

  • SHA256

    3e4dfdcd89caeea7990b7b7746a968f236704dba4a6ea467f00157130babfcdd

  • SHA512

    2869a3de85e2a3f0dbc4d7e1854967866a84fe0c159a0e90046f6330c57689e6dd13ab925a1f988d27630abec8f206d83db9a5b5d45d564b8b8039e5994b0a68

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3hvLcut:ZVxkGOtEvwDpjcaH

Score
7/10

Malware Config

Signatures

  • 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\1a0e6e4d38acb1f7b2fbb2ba4eced4b0_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\1a0e6e4d38acb1f7b2fbb2ba4eced4b0_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2920
    • 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:3864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    60KB

    MD5

    549edecf07bf2f3e1aac274bf57fc6e0

    SHA1

    a04917b4381032cb2e88434688816b33f52e077a

    SHA256

    16019f00b5c7df8aa1d2f54fe1393ec2bc2341802348cbf9fff576a92d722f80

    SHA512

    ccda4eeb4a58aee366e56a846050e49e7ffcd0dd535ad4eb92789d4a9d84ddfe7fb27b93182b603820e0ad991a9c220fb8d385b7f2ceb1ce37cf21dc7db08e1d

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

    Filesize

    60KB

    MD5

    549edecf07bf2f3e1aac274bf57fc6e0

    SHA1

    a04917b4381032cb2e88434688816b33f52e077a

    SHA256

    16019f00b5c7df8aa1d2f54fe1393ec2bc2341802348cbf9fff576a92d722f80

    SHA512

    ccda4eeb4a58aee366e56a846050e49e7ffcd0dd535ad4eb92789d4a9d84ddfe7fb27b93182b603820e0ad991a9c220fb8d385b7f2ceb1ce37cf21dc7db08e1d

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

    Filesize

    60KB

    MD5

    549edecf07bf2f3e1aac274bf57fc6e0

    SHA1

    a04917b4381032cb2e88434688816b33f52e077a

    SHA256

    16019f00b5c7df8aa1d2f54fe1393ec2bc2341802348cbf9fff576a92d722f80

    SHA512

    ccda4eeb4a58aee366e56a846050e49e7ffcd0dd535ad4eb92789d4a9d84ddfe7fb27b93182b603820e0ad991a9c220fb8d385b7f2ceb1ce37cf21dc7db08e1d

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2920-133-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2920-134-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/2920-135-0x0000000000630000-0x0000000000636000-memory.dmp

    Filesize

    24KB

  • memory/2920-136-0x0000000000650000-0x0000000000656000-memory.dmp

    Filesize

    24KB

  • memory/2920-150-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3864-152-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/3864-153-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB