Analysis

  • max time kernel
    95s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/09/2024, 06:22

General

  • Target

    2024-09-19_04d93d9e51efd25d5bfbcd6fab7e4f3e_cryptolocker.exe

  • Size

    57KB

  • MD5

    04d93d9e51efd25d5bfbcd6fab7e4f3e

  • SHA1

    697cf615d64461700b64d80f4cfbd66c32b6492d

  • SHA256

    b1e096280fff5c0c4bc6ed0b69a48d3e6ac09f9fca8d7a81baf9223d9a07e118

  • SHA512

    92e207893ef9c763ee02acacb7b96165dffd21ffed3b7f7974cf08df59aa6e7dee494a5524a179811bbeb91c8c87a4958d24003609bc03498257482bc8b4dbe4

  • SSDEEP

    768:xQz7yVEhs9+4uR1bytOOtEvwDpjWfbZgBh8i6g7GoFY:xj+VGMOtEvwDpjubEgyY

Score
7/10

Malware Config

Signatures

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies system certificate store 2 TTPs 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-19_04d93d9e51efd25d5bfbcd6fab7e4f3e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_04d93d9e51efd25d5bfbcd6fab7e4f3e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4480
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:4076

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    57KB

    MD5

    395c9ee13bcbb4db10e8a549491573e7

    SHA1

    096565f7f12b594f99e031a57bf0e89ee3dcd62e

    SHA256

    69b796a4188bfc6d60eabc24868e0b03eedf79181f7dba9073b47e48688fd13e

    SHA512

    77ee471acead8dcb54767dd003106876adca8e0bdce1344f6e5535581bbda42741ea4e301b7ba7437e38ea6fef10985d0aa2140a771b62d7a62433ed1b20cad1

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4076-19-0x00000000005A0000-0x00000000005A6000-memory.dmp

    Filesize

    24KB

  • memory/4076-20-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/4076-48-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4480-0-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB

  • memory/4480-1-0x0000000000740000-0x0000000000746000-memory.dmp

    Filesize

    24KB

  • memory/4480-2-0x0000000000740000-0x0000000000746000-memory.dmp

    Filesize

    24KB

  • memory/4480-3-0x0000000000760000-0x0000000000766000-memory.dmp

    Filesize

    24KB

  • memory/4480-17-0x0000000000500000-0x0000000000510000-memory.dmp

    Filesize

    64KB