Analysis

  • max time kernel
    94s
  • max time network
    135s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-09-2024 12:18

General

  • Target

    2024-09-05_ee7e51a884e7e04e4a6c066f8c16be1e_cryptolocker.exe

  • Size

    62KB

  • MD5

    ee7e51a884e7e04e4a6c066f8c16be1e

  • SHA1

    cd79befcac7200d2fc5af30ce513b46a5c2e6c8a

  • SHA256

    9bfb1712414ff88fe30d5f85ea6890069427a1ec82306b8435eb2456b2ee764e

  • SHA512

    54427a9042e96486149c45ef3d7cdcfa0270a37a162edecce45834be1008f9eea9e3413172611b8971d7c6f046bac62420bda0d135a3f5e6cba5775e27464276

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMNuSL:TCjsIOtEvwDpj5HE/OUHnSMZE

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\2024-09-05_ee7e51a884e7e04e4a6c066f8c16be1e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-05_ee7e51a884e7e04e4a6c066f8c16be1e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1896
    • 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:3752

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    62KB

    MD5

    0f12eaebb675ab3dcd2a50786ef575a4

    SHA1

    1b90e60e4bc6bd18baa6a4c3aceb955cbf5cfd83

    SHA256

    20d663e1a561cc9fb127841296bab24ffc10a70c906741f13d78acd0e6a3a619

    SHA512

    893f6cc625c50270b5859f29f1519ce9ebf368d60abb1032323b25bac9e3bae689292d5c838cc1a54a9b17031fc98b373662ea1abf5388f9cb722a426e561b3e

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

    Filesize

    315B

    MD5

    a34ac19f4afae63adc5d2f7bc970c07f

    SHA1

    a82190fc530c265aa40a045c21770d967f4767b8

    SHA256

    d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

    SHA512

    42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

  • memory/1896-0-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/1896-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1896-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

    Filesize

    24KB

  • memory/1896-3-0x0000000000610000-0x0000000000616000-memory.dmp

    Filesize

    24KB

  • memory/1896-17-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB

  • memory/3752-19-0x0000000000660000-0x0000000000666000-memory.dmp

    Filesize

    24KB

  • memory/3752-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

    Filesize

    24KB

  • memory/3752-50-0x0000000000500000-0x000000000050E000-memory.dmp

    Filesize

    56KB