Analysis

  • max time kernel
    128s
  • max time network
    137s
  • 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, 19:46

General

  • Target

    76ee80a470afe6109c2bfde92fa09370_cryptolocker_JC.exe

  • Size

    49KB

  • MD5

    76ee80a470afe6109c2bfde92fa09370

  • SHA1

    81690f4b512876a87988fe636c8195366e9f3d38

  • SHA256

    77fef5784defc9b0e8582c2174a6197b4eaa7ee722bbcf468d4eada81c7e276d

  • SHA512

    77da7396472d878b29a947e8f9a0d77e584a8b8114181364d15d9a5da6a3fce76197895760c8dad718ba5b7e8f840ff047fe59c67da8081ada9b981f3fddaff7

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxtF9:6j+1NMOtEvwDpjr8oxN

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\76ee80a470afe6109c2bfde92fa09370_cryptolocker_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\76ee80a470afe6109c2bfde92fa09370_cryptolocker_JC.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3964
    • 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:1860

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    5943778a8d6e31d72824e8638079cad8

    SHA1

    ec0b0a048fdab6133c0db44e35f9ad95cddb7a95

    SHA256

    65fb17e9b6c65b389f83c28b5662ab29390476cdf16d53f536954758cb646602

    SHA512

    69c5a878f69109acaf09e30316221548caee59fe76a7b050e6f5e00c954977bcebc5baf6bb15720201409ebfc50bad884e68b7df30ca9a8acd8a59691595e809

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

    Filesize

    49KB

    MD5

    5943778a8d6e31d72824e8638079cad8

    SHA1

    ec0b0a048fdab6133c0db44e35f9ad95cddb7a95

    SHA256

    65fb17e9b6c65b389f83c28b5662ab29390476cdf16d53f536954758cb646602

    SHA512

    69c5a878f69109acaf09e30316221548caee59fe76a7b050e6f5e00c954977bcebc5baf6bb15720201409ebfc50bad884e68b7df30ca9a8acd8a59691595e809

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

    Filesize

    49KB

    MD5

    5943778a8d6e31d72824e8638079cad8

    SHA1

    ec0b0a048fdab6133c0db44e35f9ad95cddb7a95

    SHA256

    65fb17e9b6c65b389f83c28b5662ab29390476cdf16d53f536954758cb646602

    SHA512

    69c5a878f69109acaf09e30316221548caee59fe76a7b050e6f5e00c954977bcebc5baf6bb15720201409ebfc50bad884e68b7df30ca9a8acd8a59691595e809

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1860-152-0x0000000002110000-0x0000000002116000-memory.dmp

    Filesize

    24KB

  • memory/1860-153-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

    Filesize

    24KB

  • memory/1860-181-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3964-133-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/3964-134-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3964-135-0x00000000004D0000-0x00000000004D6000-memory.dmp

    Filesize

    24KB

  • memory/3964-136-0x00000000004F0000-0x00000000004F6000-memory.dmp

    Filesize

    24KB

  • memory/3964-150-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB