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Analysis

  • max time kernel
    136s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    05/08/2023, 13:18

General

  • Target

    70d1e9277f2fe2f2423d764ebaf4d98c_cryptolocker_JC.exe

  • Size

    98KB

  • MD5

    70d1e9277f2fe2f2423d764ebaf4d98c

  • SHA1

    3ef8ccf336decf5a8a314174351001f504bd8b9d

  • SHA256

    0fa8410efd7e7ebe35a734fb726839f59b101397d01f2cd0548f80cd3e9bc629

  • SHA512

    35c811d33feeafbfa53982523535b82bf34c0ab929ce3e68ab43fa37d9f0ad862b4443caaa68dc9e3ae1a3c85bcdba27a9503bfe36c103c9f3c9e7e9d9f8945e

  • SSDEEP

    1536:P8mnK6QFElP6n+gymddpMOtEvwDpjIHsalRn5iF1j6GQi:1nK6a+qdOOtEvwDpjL

Score
7/10
upx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 8 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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\70d1e9277f2fe2f2423d764ebaf4d98c_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\70d1e9277f2fe2f2423d764ebaf4d98c_cryptolocker_JC.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1624
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    98KB

    MD5

    93208ca7b254dc948e02dbb119856858

    SHA1

    2fe9a7357f2a18fa9b10590a72ad7f07446eed2e

    SHA256

    e2d53f3546ad45e2ff9515d487fdb37c037cf3e8126c0207ffbff20ad85800d7

    SHA512

    03db13b61998e8e04496573c7237de46bf2782fb74af5ca7cd5c8b0bb8d85f1a56744529d1651e6a32c8199051412eddc99526d4fcc9c6952490fffd87ee8d34

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

    Filesize

    98KB

    MD5

    93208ca7b254dc948e02dbb119856858

    SHA1

    2fe9a7357f2a18fa9b10590a72ad7f07446eed2e

    SHA256

    e2d53f3546ad45e2ff9515d487fdb37c037cf3e8126c0207ffbff20ad85800d7

    SHA512

    03db13b61998e8e04496573c7237de46bf2782fb74af5ca7cd5c8b0bb8d85f1a56744529d1651e6a32c8199051412eddc99526d4fcc9c6952490fffd87ee8d34

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

    Filesize

    98KB

    MD5

    93208ca7b254dc948e02dbb119856858

    SHA1

    2fe9a7357f2a18fa9b10590a72ad7f07446eed2e

    SHA256

    e2d53f3546ad45e2ff9515d487fdb37c037cf3e8126c0207ffbff20ad85800d7

    SHA512

    03db13b61998e8e04496573c7237de46bf2782fb74af5ca7cd5c8b0bb8d85f1a56744529d1651e6a32c8199051412eddc99526d4fcc9c6952490fffd87ee8d34

  • memory/868-82-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/868-73-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/868-74-0x0000000000490000-0x0000000000496000-memory.dmp

    Filesize

    24KB

  • memory/868-72-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1624-57-0x0000000000300000-0x0000000000306000-memory.dmp

    Filesize

    24KB

  • memory/1624-70-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1624-66-0x0000000000650000-0x0000000000660000-memory.dmp

    Filesize

    64KB

  • memory/1624-54-0x0000000000500000-0x000000000050F311-memory.dmp

    Filesize

    60KB

  • memory/1624-56-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/1624-81-0x0000000000650000-0x0000000000660000-memory.dmp

    Filesize

    64KB

  • memory/1624-55-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB