Analysis

  • max time kernel
    141s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/08/2023, 10:14

General

  • Target

    7ef0ef6df1819fb89b75561f5d0371d4_cryptolocker_JC.exe

  • Size

    59KB

  • MD5

    7ef0ef6df1819fb89b75561f5d0371d4

  • SHA1

    246b835196b6e8142dc9a23437acc06103b37ac9

  • SHA256

    6490fdb10301ac01d46a9af3b7b30ebed80280c9223702b8a7a03be7410b6453

  • SHA512

    2cfc814cfbf0ee5c4585b1960e08d13348e91cf4f691731d104b5cbe94a0184fd44ab579a03b89c570d9e44e51f71387103e3b7d88b918e126626aa4415ba747

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HyCyh7vtRJ4BqKb1cKtqP3:vCjsIOtEvwDpj5Hv05

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 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7ef0ef6df1819fb89b75561f5d0371d4_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\7ef0ef6df1819fb89b75561f5d0371d4_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1356
    • 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:3876

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          59KB

          MD5

          f7a0c2bdd95fcdbd3a2af6d48ff25b8b

          SHA1

          2513f510c9e38fbd35af2d35ee4e358f710f3159

          SHA256

          291e41f27c6da3f30b3420b4d7a979360f37105780efe3dc400a6dc07ba74967

          SHA512

          778f45344ad8f7dd65fc47253650cc787bfba67c9303cc9db5a2bfaeddad014743c73dcadb3c5740917c237c8fc513b3a0c85e14baf912cdcf3d06b506ef7257

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

          Filesize

          59KB

          MD5

          f7a0c2bdd95fcdbd3a2af6d48ff25b8b

          SHA1

          2513f510c9e38fbd35af2d35ee4e358f710f3159

          SHA256

          291e41f27c6da3f30b3420b4d7a979360f37105780efe3dc400a6dc07ba74967

          SHA512

          778f45344ad8f7dd65fc47253650cc787bfba67c9303cc9db5a2bfaeddad014743c73dcadb3c5740917c237c8fc513b3a0c85e14baf912cdcf3d06b506ef7257

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

          Filesize

          59KB

          MD5

          f7a0c2bdd95fcdbd3a2af6d48ff25b8b

          SHA1

          2513f510c9e38fbd35af2d35ee4e358f710f3159

          SHA256

          291e41f27c6da3f30b3420b4d7a979360f37105780efe3dc400a6dc07ba74967

          SHA512

          778f45344ad8f7dd65fc47253650cc787bfba67c9303cc9db5a2bfaeddad014743c73dcadb3c5740917c237c8fc513b3a0c85e14baf912cdcf3d06b506ef7257

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1356-133-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/1356-134-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/1356-135-0x0000000000810000-0x0000000000816000-memory.dmp

          Filesize

          24KB

        • memory/3876-150-0x0000000001F70000-0x0000000001F76000-memory.dmp

          Filesize

          24KB

        • memory/3876-151-0x0000000001F50000-0x0000000001F56000-memory.dmp

          Filesize

          24KB