Analysis

  • max time kernel
    94s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-10-2024 04:31

General

  • Target

    2024-10-04_da88321df584438082d70b9c16451f49_cryptolocker.exe

  • Size

    75KB

  • MD5

    da88321df584438082d70b9c16451f49

  • SHA1

    8713ecfda4d389ba4f892b141e75ed98265b1c12

  • SHA256

    788df54927627308aaf212baf02ee36bd1529af1f05af985398db59d1dbefac9

  • SHA512

    528a6e1e3ce6cc3411111ce2c50e27f18c818b0742212b5f899c125efd972ebcdb6266b64f31cae85b54f67b0d10468d0fea9125a69c1f77c1e2abb9fe25c8c7

  • SSDEEP

    768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zG:9Uj+AIMOtEvwDpjLizbR9XwzG

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\2024-10-04_da88321df584438082d70b9c16451f49_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-04_da88321df584438082d70b9c16451f49_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1464
    • 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:3644

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    75KB

    MD5

    6b578b45ff6615f7ff1cc7f6956c2a72

    SHA1

    99a2f0eff2c17b0cb86c0c7cb5cc019ddabcdfa5

    SHA256

    905fece70bb202194b6634ae236c0dafd016ae8deba2e3f597b46a3b1385d297

    SHA512

    cc9b056fa92485dfaf47010db378a8397b8274363af26f5f7b511b66dd53528cc9521caa8daf1c0a3796b10dd54865e8cfbccb68a20847764f1881f0db6d601a

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1464-0-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/1464-1-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/1464-2-0x0000000002080000-0x0000000002086000-memory.dmp

    Filesize

    24KB

  • memory/3644-23-0x0000000000670000-0x0000000000676000-memory.dmp

    Filesize

    24KB