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Analysis

  • max time kernel
    135s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/09/2024, 06:35

General

  • Target

    2024-09-06_bc8da5a67db6ffdb653cc061a965d025_cryptolocker.exe

  • Size

    40KB

  • MD5

    bc8da5a67db6ffdb653cc061a965d025

  • SHA1

    04199c25afe0f629c3e1ec07fc17943b06e42f7b

  • SHA256

    72b03a8935f9d119de4874486a46b5bbbd44567be38bb6f6d4b97b864f9dd9ba

  • SHA512

    c2aca7ad6cda59254de0cff4925884bb8057bf387d32c1b51c44cf0f85e95ac66190cfc7f445fb10fd83582f380dd1a71d2831b5a3a2039f2d1ab9f516c69fec

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjLeJAsKuD+Z:ZzFbxmLPWQMOtEvwDpjLeJAsKck

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\2024-09-06_bc8da5a67db6ffdb653cc061a965d025_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_bc8da5a67db6ffdb653cc061a965d025_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2596
    • 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:408

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    12bbe48076a04cb6598e962a1c80852c

    SHA1

    cdcf3d0a9431ec82b0c93582c6444e15391d9ab2

    SHA256

    9f1a0c2598bdabc78cb3d80c193d33900f57ea752339fbda8d67b37796e34a5e

    SHA512

    c673befbd598d3eda0fd1f5439906c40348b62024304afbf0fa5fcabee144d7f970cfeb03ee86008be63a7acdc8cff96b9b9d88214b7952650d9964438d50c09

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/408-25-0x0000000000520000-0x0000000000526000-memory.dmp

    Filesize

    24KB

  • memory/408-19-0x0000000000680000-0x0000000000686000-memory.dmp

    Filesize

    24KB

  • memory/2596-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB

  • memory/2596-1-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/2596-2-0x0000000000620000-0x0000000000626000-memory.dmp

    Filesize

    24KB

  • memory/2596-3-0x0000000000750000-0x0000000000756000-memory.dmp

    Filesize

    24KB

  • memory/2596-18-0x00000000004E0000-0x00000000004E3000-memory.dmp

    Filesize

    12KB