Analysis

  • max time kernel
    1s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    05-01-2024 05:38

General

  • Target

    2024-01-01_196d62f3ad961b348d8ec9706d1f5f89_cryptolocker.exe

  • Size

    42KB

  • MD5

    196d62f3ad961b348d8ec9706d1f5f89

  • SHA1

    4da3a7c13d1f41125204a11e3e5a1075ddd4f836

  • SHA256

    8a167b172a5c142e42bbb53364ab1384589f7ce3c88de1caa7f4b9f37e72add2

  • SHA512

    0232948e30c7ba2ea44dfed02ae0680ef50cd4b9ec94ac8e2f9f23b6c80fa233b74ec657602ef2825af25647a467d7f38cf274ab1b33701d11b4ebe07661d780

  • SSDEEP

    768:bgX4zYcgTEu6QOaryfjqDlC6JFbK37YbDu5zx:bgGYcA/53GAA6y37nL

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\2024-01-01_196d62f3ad961b348d8ec9706d1f5f89_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-01_196d62f3ad961b348d8ec9706d1f5f89_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1468

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    18KB

    MD5

    95195896fa09849b50f7367039757c1f

    SHA1

    0962c923d533f1d761bb55f3f39dd19699784fe9

    SHA256

    3f7bebcd03270c27b670a2e3a9735cb6ad37e3f2da5b3089222e7c788d193316

    SHA512

    73bce7739ea5cf76f2c5733e9c46c1f0b7aa4080cc80dd0029695d80b7cb7df84c01860f068c83ef7a1b656f88112f5db9f0df5aa0d24b8741bde3382b081959

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

    Filesize

    9KB

    MD5

    261cc6d3c9f46032079c846d143db5ab

    SHA1

    b0c6ed3921e8126dfa4fd4f60a2dc6f71d3fa350

    SHA256

    b72351528083bcff875f15f3dfbd9548e61b2205a5b21726954a82d199679bec

    SHA512

    aa431b10d38a9083f8df654d2bd0f57dd4707e89bfdd3b2234dac471e5dc85b6e03e9227ff3cb99366473349e9c9a021166f003a4edaa0e654cb4b1061cdbdff

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

    Filesize

    10KB

    MD5

    e7ed3e9a594770d71de96b2bf78d23f4

    SHA1

    2c891cbb52b54650ff7c71ea4402d421cdf4b618

    SHA256

    7818dc5e3ce030df6a77ef95fe5a76d6264bb8c279aa66bfffbfa7b7688df0ae

    SHA512

    a73c7bd0fb716d7c15d38fddbfb8cc386ce3ff8d879f60fd28d50311f4eebe5229c750736d91d13f51af34ddf99a74d5a12a651194d3b2d5976a6d93e9d9c8d8

  • memory/1072-0-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/1072-8-0x00000000005F0000-0x00000000005F6000-memory.dmp

    Filesize

    24KB

  • memory/1072-1-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

    Filesize

    24KB

  • memory/1468-15-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/1468-20-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB