Analysis

  • max time kernel
    134s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/08/2024, 06:35

General

  • Target

    2024-08-26_449b3080ef5e5c3ed8c382cb26b1f65c_cryptolocker.exe

  • Size

    47KB

  • MD5

    449b3080ef5e5c3ed8c382cb26b1f65c

  • SHA1

    b5894f837215a4a740c7638301557963689869f4

  • SHA256

    35aa1799c416c72c6ba107c4dbd5022335d1c13c8b6d27cd128c04d93268dbfa

  • SHA512

    29fbcb02024da0fa50fe2301e9cf797dedb75f23b0562399e95d69016ab804ece37703651219e8cdc9bc726669679ed3cb7844c2c4b97ab5011524cf5e449136

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDhkJ0:6j+1NMOtEvwDpjrRraJ0

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 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-26_449b3080ef5e5c3ed8c382cb26b1f65c_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-26_449b3080ef5e5c3ed8c382cb26b1f65c_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4316
    • 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:1948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    47KB

    MD5

    9bee1f2460d32dd122279ce5d6e6fd17

    SHA1

    7c0cebc66ab48c5bfebe7e7e5df37d0b414213b4

    SHA256

    626eced1207de7106d8c6e34ac9991e5b5b358c8c0a75b63d6924ed26a26804e

    SHA512

    0234306fdf882ea06fec28576839315bea3ef14f66f1e4320b49b6145412ce54591c471decd3c0fc965babc0d5eaa83ffa3de80f680579734ac312ad98b53ae3

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1948-19-0x00000000006B0000-0x00000000006B6000-memory.dmp

    Filesize

    24KB

  • memory/1948-25-0x0000000000690000-0x0000000000696000-memory.dmp

    Filesize

    24KB

  • memory/1948-48-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4316-0-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB

  • memory/4316-1-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/4316-2-0x0000000000590000-0x0000000000596000-memory.dmp

    Filesize

    24KB

  • memory/4316-3-0x00000000005B0000-0x00000000005B6000-memory.dmp

    Filesize

    24KB

  • memory/4316-17-0x0000000000500000-0x000000000050F000-memory.dmp

    Filesize

    60KB