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 05:23

General

  • Target

    2024-09-19_13af15529a01c9b4cffad7198d12a235_cryptolocker.exe

  • Size

    68KB

  • MD5

    13af15529a01c9b4cffad7198d12a235

  • SHA1

    19c7cce1473bd2218998d1a1c5457a23e5ac29b4

  • SHA256

    371ef5746e0c36d0631148efd7656b77a805e30fcb5421b249c9069bb94f3afa

  • SHA512

    cf6ef5d622299596ec4c350bcd438778d1a7322483dbd7dc307d70177c96e62c8d721a986bb8225de3d4d651dee7c1f23864d866cc02b9f97a28edf7c16e29d5

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tMPvdfGy7G:TCjsIOtEvwDpj5HE/OUHnSMYV

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\2024-09-19_13af15529a01c9b4cffad7198d12a235_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_13af15529a01c9b4cffad7198d12a235_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4464
    • 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:4992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    69KB

    MD5

    d64f6e5ea336acf67d056dbd0a0993f0

    SHA1

    fb25c91284fa64382b1701d150d3ec1bf6938632

    SHA256

    160945728feb3ba3e01e65bba6232138e0b8907d9151142a4fd9348a4d3ae54c

    SHA512

    8f3b9d2de781b7e44b051d5f541710f0daa4be2a56db8ec1e1df7894604d988f7d923a6de8c6e74d13276c079807694d1c976746c845354f5aae43c8e5fe6a29

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/4464-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4464-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4464-2-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB

  • memory/4464-3-0x0000000000810000-0x0000000000816000-memory.dmp

    Filesize

    24KB

  • memory/4464-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/4992-19-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/4992-49-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB