Analysis

  • max time kernel
    138s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 07:05

General

  • Target

    2024-08-25_ebac594e6703841d586fcf467c88554e_cryptolocker.exe

  • Size

    80KB

  • MD5

    ebac594e6703841d586fcf467c88554e

  • SHA1

    4080dcffcdcb5974938bed5ef78fdd30d116079a

  • SHA256

    9d91046e6498b5120c674204042d5a3acbdb0f0b32d74a6152dc31205ec987f4

  • SHA512

    896dbe2183356f10a55534b299c6aea6947fc071af033339352bc01205d22454f1d919c4701bac850e6712a006d6f093b1c8deaf842e141b647d341befec1b53

  • SSDEEP

    1536:vj+jsMQMOtEvwDpj5HwYYTjipvF2hBfIufk:vCjsIOtEvwDpj5H9YvQd2Q

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 10 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-25_ebac594e6703841d586fcf467c88554e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-25_ebac594e6703841d586fcf467c88554e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4244
    • 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:2828

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          80KB

          MD5

          cfc575db5eb3c8794fcb3e5b5be95a62

          SHA1

          9bfae3b749b5377528c0b8c65e783d9a15817b2b

          SHA256

          3a97cca6e0849ee0391129eef1f2626086a9d5771ab0d1a859437b88616b91c2

          SHA512

          dd35549a245393837f0afb841ceb7258291e5099b184734feba10192e8c35f65b62a4dd390d4d441ec73d7b1a3a600ff4ca5d84d1ef01e08ed7d85281266a3b9

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/2828-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/2828-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/4244-0-0x00000000006E0000-0x00000000006E6000-memory.dmp

          Filesize

          24KB

        • memory/4244-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

          Filesize

          24KB

        • memory/4244-2-0x0000000000810000-0x0000000000816000-memory.dmp

          Filesize

          24KB