Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/11/2024, 15:06

General

  • Target

    2024-11-07_eaad1808e183fb5f0163f828e2ff7e57_cryptolocker.exe

  • Size

    34KB

  • MD5

    eaad1808e183fb5f0163f828e2ff7e57

  • SHA1

    b904a7c534f8127c6cee7879259042760a7bb712

  • SHA256

    c6ed3d9abce97509ba3b0e61828235eb1a08f910be4cf5b5b3f940f54cc852ee

  • SHA512

    4100ef1f27599e42ccc9e247ac2fbbdf709e12aa15d1ebb95cbfc2669455583ef0e5e2420e184c87418ef84e35df5a719c1ac2ce0b1e1addf37d28978d8a55a4

  • SSDEEP

    768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5axRVe:qUmnpomddpMOtEvwDpjjaYaQ

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • 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.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-07_eaad1808e183fb5f0163f828e2ff7e57_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-07_eaad1808e183fb5f0163f828e2ff7e57_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2156
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:3940

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          34KB

          MD5

          6d8f14fee5cc43ffc47288de4fbf2a24

          SHA1

          41fc0e27342dc6bd9ab2211a9f29b1c85c3d0b9c

          SHA256

          72b36599910dab1687e4dd3325a1706b2a015741464a5b2ce00e5c84035337a9

          SHA512

          1c0b0cd8d2aa055cdf7220beb76e3dbad435c72a10d9a1bae7d11f7e1277adc51300e4ea449d1147f52efa24467c2850d1e5ec66be0ce57cd668d2d37a68922e

        • memory/2156-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/2156-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/2156-2-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/2156-3-0x00000000005C0000-0x00000000005C6000-memory.dmp

          Filesize

          24KB

        • memory/2156-18-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3940-26-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/3940-20-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB

        • memory/3940-27-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB