Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05/10/2024, 03:44

General

  • Target

    2024-10-05_8f0b61b69621cab9a906a0034f206f0c_cryptolocker.exe

  • Size

    42KB

  • MD5

    8f0b61b69621cab9a906a0034f206f0c

  • SHA1

    b8ffadeae1c6ab3cfbd4e5bc98263db742cad1c2

  • SHA256

    7fa4125d5aa7effa95bfdb7e89ffd610c8517dd69789aa82d5516808e30b4c75

  • SHA512

    2f08e7b3d4f1b30851c206bd25320043104eb3df0b9b8728566c6cc7c1b1968cb1e7554b75620083e4b0b40d4767cf5f369157d17b9144289f1efd4ee6292b65

  • SSDEEP

    768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAbF:bCDOw9aMDooc+vAbF

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 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.

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-05_8f0b61b69621cab9a906a0034f206f0c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-05_8f0b61b69621cab9a906a0034f206f0c_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2536

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • \Users\Admin\AppData\Local\Temp\lossy.exe

          Filesize

          43KB

          MD5

          fb0988799dcfb3d48dfc130cd1989372

          SHA1

          cb455dcbeb60f5e0693bee769545a3250adc1394

          SHA256

          2c4ef8c676be90e17f7e4984fba2671d77e70751c31178b49c28973153a427bb

          SHA512

          794acae5493086e38cdd21fd505087ff34ec93045c5f09e2792b040c15a61fc5c3117987e3dbc007d0b63a512a44d2ada0f3bad1275f2e402285bc7ffada8a74

        • memory/1192-0-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/1192-2-0x0000000000350000-0x0000000000356000-memory.dmp

          Filesize

          24KB

        • memory/1192-9-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1192-1-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1192-14-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/2536-16-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/2536-19-0x0000000000310000-0x0000000000316000-memory.dmp

          Filesize

          24KB

        • memory/2536-18-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/2536-26-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB