Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 19:23

General

  • Target

    2024052125b3f0f2c796cd36c9da555434438be7cryptolocker.exe

  • Size

    37KB

  • MD5

    25b3f0f2c796cd36c9da555434438be7

  • SHA1

    c31d8c6b8919963687b8fd7588bdfd5909e0d9c3

  • SHA256

    db1cdcb61ba1a59096d7f8992db2693281f7f0f9c0ed9ba65e509d6a517b346e

  • SHA512

    cb79c5323f92701112a97b0a95f5df0ad8de63845a722dc42e81e526266da9eb3f44e74154437fc9f42f03815f94119ca2343ddf40de3500acc7dba8518d179b

  • SSDEEP

    768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4qo:fT+hsMQMOtEvwDpjoIHX

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).

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024052125b3f0f2c796cd36c9da555434438be7cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024052125b3f0f2c796cd36c9da555434438be7cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:644
    • 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:4168

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    255af4b5524e54ddce0227d0cfe63800

    SHA1

    28cf24096d81482f1c61fd0f141a4682d76177c4

    SHA256

    09333bc4ca013f1c088028bce846b2dc36f8a84a592bb0f4d70164f746069070

    SHA512

    c037f86c3fdb6ac118375df19eb53930b5807f1716855b7e2e47c0289aa23c405941c62dcd0a9505385e1678335c6b52378896ee6ae03e6d8429f032f2ca67e9

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/644-0-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/644-1-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/644-8-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/4168-17-0x00000000006C0000-0x00000000006C6000-memory.dmp

    Filesize

    24KB

  • memory/4168-23-0x00000000006A0000-0x00000000006A6000-memory.dmp

    Filesize

    24KB