Analysis

  • max time kernel
    151s
  • max time network
    156s
  • 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, 18:24

General

  • Target

    911e9bd74740b14a96cbbcbf13edf0c4_cryptolocker_JC.exe

  • Size

    45KB

  • MD5

    911e9bd74740b14a96cbbcbf13edf0c4

  • SHA1

    a46e00d3df61aa722d1e4315b3692231b3f5e8a1

  • SHA256

    2ed99c5c6aaf96f866d65b1ac7231c460b37c8b29482d1d66d328e41b511ca8f

  • SHA512

    6b762ee54f75a1a7ed2c2ebecf2ce5faf038dbc0a9337291e50621a81cad76bab140c0bb8d7a9ab446e2d7c9087831b9fda88a3e3b7f8ca1dffa3730eac6cf5d

  • SSDEEP

    768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpjeJQ7suIlsw92KFXcTdD:V6QFElP6n+gMQMOtEvwDpjeJQ7pojad

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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\911e9bd74740b14a96cbbcbf13edf0c4_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\911e9bd74740b14a96cbbcbf13edf0c4_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4720
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:4616

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          46KB

          MD5

          f5d9a17c8f93838df9da0fa872b6701c

          SHA1

          59788b6f35fbec79bbe8562df26678d960fe5264

          SHA256

          d720fb1aa5cb1e5db69572221c84f8abbd4fa323120ee60285d7bfbfa6d12d67

          SHA512

          dede1a394d9cbbc91f2d9b964960138cd58f11a828c230f91d1d2e50cd2ab8e6e48ac5d975f0d8351e5bdec0db87494949af5942065b7b6961a3e1c18dbd6433

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

          Filesize

          46KB

          MD5

          f5d9a17c8f93838df9da0fa872b6701c

          SHA1

          59788b6f35fbec79bbe8562df26678d960fe5264

          SHA256

          d720fb1aa5cb1e5db69572221c84f8abbd4fa323120ee60285d7bfbfa6d12d67

          SHA512

          dede1a394d9cbbc91f2d9b964960138cd58f11a828c230f91d1d2e50cd2ab8e6e48ac5d975f0d8351e5bdec0db87494949af5942065b7b6961a3e1c18dbd6433

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

          Filesize

          46KB

          MD5

          f5d9a17c8f93838df9da0fa872b6701c

          SHA1

          59788b6f35fbec79bbe8562df26678d960fe5264

          SHA256

          d720fb1aa5cb1e5db69572221c84f8abbd4fa323120ee60285d7bfbfa6d12d67

          SHA512

          dede1a394d9cbbc91f2d9b964960138cd58f11a828c230f91d1d2e50cd2ab8e6e48ac5d975f0d8351e5bdec0db87494949af5942065b7b6961a3e1c18dbd6433

        • memory/4616-151-0x0000000002000000-0x0000000002006000-memory.dmp

          Filesize

          24KB

        • memory/4616-150-0x0000000001F50000-0x0000000001F56000-memory.dmp

          Filesize

          24KB

        • memory/4720-133-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4720-134-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4720-135-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB