Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/05/2024, 04:32

General

  • Target

    2024-05-17_9690f01906d4bac95173515264485e92_cryptolocker.exe

  • Size

    40KB

  • MD5

    9690f01906d4bac95173515264485e92

  • SHA1

    63b5a0d99bfd5441302e8b70578f72feee511749

  • SHA256

    61d7fedc95590c2ef70dd29b5c45028514ad08cbe2be2ddddf5899ad15b83b12

  • SHA512

    ef8d4f33a556ff4eb5d731acf4585be6658d92ad657af4f054fe611fba3900fddb29afb8d32890c21410f74a3a790687f8b3b0fa69b65c5141ca15a9a565f644

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuDkL:ZzFbxmLPWQMOtEvwDpjLeJAsKcg

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\2024-05-17_9690f01906d4bac95173515264485e92_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-17_9690f01906d4bac95173515264485e92_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3084
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:4744

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    40KB

    MD5

    95852f45b41169ffd52bed689c620e79

    SHA1

    6af125ba781504ea379967326222b5e268a29e4b

    SHA256

    d9e859626877fa3b7358ff5031dea893c13349023ebe87c6654a73da7a827070

    SHA512

    ec5c03fc592b38a48e8e893d7cf2e93b4926d39a7c869d9b02199c8a234099acbded663f596dac1848ddfed7f03bf59fce73530ac4a657689bdb8dd177974fbc

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/3084-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/3084-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/3084-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

    Filesize

    24KB

  • memory/3084-9-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/3084-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4744-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/4744-20-0x00000000005D0000-0x00000000005D6000-memory.dmp

    Filesize

    24KB

  • memory/4744-26-0x0000000000560000-0x0000000000566000-memory.dmp

    Filesize

    24KB