Analysis

  • max time kernel
    143s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-08-2023 14:05

General

  • Target

    74d975517089e7fb0cda79257cec98f6_cryptolocker_JC.exe

  • Size

    54KB

  • MD5

    74d975517089e7fb0cda79257cec98f6

  • SHA1

    b72d858207777d5c542196778d6d1b3bf5fb4886

  • SHA256

    60329c6ac575463904743152df0de4b3bb0dc67d1159d163aa92480d9b16f269

  • SHA512

    a638e34ce17737ba91b73c4535901b7234f8af5aed86d1f51a560cd3b60e3c6ded6dc90ff64a011f0325fa0e60fbbc4974dd15e713d782a3aec685840e070435

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeoYA:ZzFbxmLPWQMOtEvwDpj38lD/cMA/

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\74d975517089e7fb0cda79257cec98f6_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\74d975517089e7fb0cda79257cec98f6_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4428
    • 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:2236

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    54KB

    MD5

    66a65da0ccaa4bfc943d3632c4dae975

    SHA1

    3c5788c4d06778834db6d78121c294542f6264c0

    SHA256

    d50a187f27fb21619c5a3cf306a0ee6c01e66749d861533c04eeff8ebb09e298

    SHA512

    ddf4ed1a930f3a09727656d958792359a0da0bd8bd18e7cc6c3a97fda245337ab752082a2c71a0bd78eb3b5f6012d530a9ce34fd1fb6e97bcfd824e932e4fa7f

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

    Filesize

    54KB

    MD5

    66a65da0ccaa4bfc943d3632c4dae975

    SHA1

    3c5788c4d06778834db6d78121c294542f6264c0

    SHA256

    d50a187f27fb21619c5a3cf306a0ee6c01e66749d861533c04eeff8ebb09e298

    SHA512

    ddf4ed1a930f3a09727656d958792359a0da0bd8bd18e7cc6c3a97fda245337ab752082a2c71a0bd78eb3b5f6012d530a9ce34fd1fb6e97bcfd824e932e4fa7f

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

    Filesize

    54KB

    MD5

    66a65da0ccaa4bfc943d3632c4dae975

    SHA1

    3c5788c4d06778834db6d78121c294542f6264c0

    SHA256

    d50a187f27fb21619c5a3cf306a0ee6c01e66749d861533c04eeff8ebb09e298

    SHA512

    ddf4ed1a930f3a09727656d958792359a0da0bd8bd18e7cc6c3a97fda245337ab752082a2c71a0bd78eb3b5f6012d530a9ce34fd1fb6e97bcfd824e932e4fa7f

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2236-150-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/2236-154-0x0000000000840000-0x0000000000846000-memory.dmp

    Filesize

    24KB

  • memory/2236-153-0x0000000001FF0000-0x0000000001FF6000-memory.dmp

    Filesize

    24KB

  • memory/4428-133-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4428-135-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/4428-134-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/4428-136-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/4428-151-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB