Analysis

  • max time kernel
    127s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/08/2023, 17:20

General

  • Target

    626dab8b0a6eb480dc70dc08fab0ea42_cryptolocker_JC.exe

  • Size

    81KB

  • MD5

    626dab8b0a6eb480dc70dc08fab0ea42

  • SHA1

    a922dccd43d1bf1610e26ce71eaa7c51387b21fc

  • SHA256

    7e855afd7f63fb4dd2c84a95117a266834abc8ee2c2323a2b3308efdee02fe60

  • SHA512

    b2630786464acd9bb37d57a78bafcf51f38e5f66937991391d933d44f6c9ddab366c6fc16ff8181319ae800f22c307c2408e5e96da8b71768f04e0650cf25804

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIuBEjO:vCjsIOtEvwDpj5H9YvQd2v

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\626dab8b0a6eb480dc70dc08fab0ea42_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\626dab8b0a6eb480dc70dc08fab0ea42_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2692
    • 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:2648

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    82KB

    MD5

    60257f45935fd7970ed444877ccf0bc8

    SHA1

    cc186e459f476fdec13a4bcf93d875c99d7b0cd4

    SHA256

    2256e6f0775bbf813daba6181415d122bea6b068e17e75b87d8f1afb52e5d911

    SHA512

    f5b08164c03895e2a2c52a5fdfc1a8c3ef7a9f3c7a77ecd2803286a2f70ad26bc3ad4f86677b4f99a9296b3fad61e1474802e949da519c38dd8a33d776fd4e27

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

    Filesize

    82KB

    MD5

    60257f45935fd7970ed444877ccf0bc8

    SHA1

    cc186e459f476fdec13a4bcf93d875c99d7b0cd4

    SHA256

    2256e6f0775bbf813daba6181415d122bea6b068e17e75b87d8f1afb52e5d911

    SHA512

    f5b08164c03895e2a2c52a5fdfc1a8c3ef7a9f3c7a77ecd2803286a2f70ad26bc3ad4f86677b4f99a9296b3fad61e1474802e949da519c38dd8a33d776fd4e27

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

    Filesize

    82KB

    MD5

    60257f45935fd7970ed444877ccf0bc8

    SHA1

    cc186e459f476fdec13a4bcf93d875c99d7b0cd4

    SHA256

    2256e6f0775bbf813daba6181415d122bea6b068e17e75b87d8f1afb52e5d911

    SHA512

    f5b08164c03895e2a2c52a5fdfc1a8c3ef7a9f3c7a77ecd2803286a2f70ad26bc3ad4f86677b4f99a9296b3fad61e1474802e949da519c38dd8a33d776fd4e27

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/2648-150-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/2648-151-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/2692-133-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2692-134-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/2692-135-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB