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Analysis

  • max time kernel
    148s
  • max time network
    150s
  • 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, 05:44

General

  • Target

    2024-09-19_0525b419634934c0279ff64b9c69a75e_cryptolocker.exe

  • Size

    76KB

  • MD5

    0525b419634934c0279ff64b9c69a75e

  • SHA1

    52994bd88701a3ea079cbd63192088617ce6987f

  • SHA256

    cff3b2ac2bfb162e1feed528162ec4c69c50a4e734fb095c24c54657a33c9439

  • SHA512

    8483df4c36e9f488c5791134de13e2ece0ceb0ced4da163cbf5ebae56226c5c7caff22e5e7a6ccd5c6ba149a4abe48e244e0a305d447e60234394f892e077a03

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/Rs580g3i:ZVxkGOtEvwDpjc2

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_0525b419634934c0279ff64b9c69a75e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-19_0525b419634934c0279ff64b9c69a75e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:216
    • 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:1868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    77KB

    MD5

    eac86f279e93dd72597dd66d8cf0c5df

    SHA1

    04c5280ea90121336965b4a40368b3f9f16daeba

    SHA256

    a7dc02e9e743d3d69d10af9e6bea1f6398019e0c5d4a782074f70b8d7659bc03

    SHA512

    8d8953683032a007374a67a23fb6387e5d2689d61e06811b0a0007d84df426475462df794840a6ba51763602c206a320df4144b10105eacbfca30243975f2794

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/216-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/216-1-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/216-2-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/216-3-0x0000000002240000-0x0000000002246000-memory.dmp

    Filesize

    24KB

  • memory/216-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/1868-19-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/1868-20-0x0000000000650000-0x0000000000656000-memory.dmp

    Filesize

    24KB