Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    19-08-2023 15:55

General

  • Target

    4a3d8405399afe7c1b5983c35333ae7a_cryptolocker_JC.exe

  • Size

    36KB

  • MD5

    4a3d8405399afe7c1b5983c35333ae7a

  • SHA1

    be96c87b982753ea54b68712fa21dc557eec9868

  • SHA256

    022aec37da8dd4e42f3f9c02b3638517bb717daa6bf0fc2fa8d993380fccd21b

  • SHA512

    a45861bfe560df6d85943f3e9c86f9cb1d85797d67768d056d4940db1552ab48cc2a372143d409c3b2112b780e6d322f613a799569cbdffb4449383701b4de3c

  • SSDEEP

    384:icX+ni9VCr5nQI021q4VQBqURYp055TOtOOtEvwDpjqIGR/hHgS6BLP1V7UELrpv:XS5nQJ24LR1bytOOtEvwDpj66BLtldv

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).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a3d8405399afe7c1b5983c35333ae7a_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\4a3d8405399afe7c1b5983c35333ae7a_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1412
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    36KB

    MD5

    c60f362828d89bd2c5aae7a92644cece

    SHA1

    5b8f18656e8757e732504cbb92d33918605f0ebf

    SHA256

    dd8e0b48478199851afcdafbecce21984e35e67e1d2a4c09fb48fc98834b0b3f

    SHA512

    16e66d9cb55115b970a3ebff8d286923b09c080910ced5d5ad93a50503d9e5bad82386a9575f32a50d0252622849faa2c89b844e05f8a9667f6cdf181a67c670

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

    Filesize

    36KB

    MD5

    c60f362828d89bd2c5aae7a92644cece

    SHA1

    5b8f18656e8757e732504cbb92d33918605f0ebf

    SHA256

    dd8e0b48478199851afcdafbecce21984e35e67e1d2a4c09fb48fc98834b0b3f

    SHA512

    16e66d9cb55115b970a3ebff8d286923b09c080910ced5d5ad93a50503d9e5bad82386a9575f32a50d0252622849faa2c89b844e05f8a9667f6cdf181a67c670

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

    Filesize

    36KB

    MD5

    c60f362828d89bd2c5aae7a92644cece

    SHA1

    5b8f18656e8757e732504cbb92d33918605f0ebf

    SHA256

    dd8e0b48478199851afcdafbecce21984e35e67e1d2a4c09fb48fc98834b0b3f

    SHA512

    16e66d9cb55115b970a3ebff8d286923b09c080910ced5d5ad93a50503d9e5bad82386a9575f32a50d0252622849faa2c89b844e05f8a9667f6cdf181a67c670

  • memory/1412-56-0x0000000000430000-0x0000000000436000-memory.dmp

    Filesize

    24KB

  • memory/1412-69-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/1412-68-0x00000000025C0000-0x00000000025CF000-memory.dmp

    Filesize

    60KB

  • memory/1412-55-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1412-58-0x0000000000250000-0x0000000000256000-memory.dmp

    Filesize

    24KB

  • memory/1412-54-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2436-72-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/2436-74-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/2436-73-0x0000000000450000-0x0000000000456000-memory.dmp

    Filesize

    24KB

  • memory/2436-81-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB