Analysis

  • max time kernel
    94s
  • max time network
    124s
  • 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, 07:04

General

  • Target

    2024-08-25_eb91cebb9b26349020530fb7ee58fd4e_cryptolocker.exe

  • Size

    86KB

  • MD5

    eb91cebb9b26349020530fb7ee58fd4e

  • SHA1

    bca6080aa2317a5db25045811ea73ff49dcf0e61

  • SHA256

    8cb2907c84e9f33172865948ccf665d394b3f54ce9adadbaf75a422df41b4088

  • SHA512

    d30c17b4b1b0244c01e392a571e8bfa7ea4b966a88c50c9202d70c23e1f2587fe04a53f093032593efe31212c69346888950f396338e64635498f6181d36780c

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMrCsQ:TCjsIOtEvwDpj5HE/OUHnSMM

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\2024-08-25_eb91cebb9b26349020530fb7ee58fd4e_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-25_eb91cebb9b26349020530fb7ee58fd4e_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1372
    • 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:116

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          86KB

          MD5

          5fbed5df67c277d4a08afd16e8674f11

          SHA1

          c0950e17fffeb289ef4f58bbc8fe064beea54d6a

          SHA256

          da1a5a2577c3de1a18c48d0fd91f31383939cfae9ac95e7d7619072fe886cf53

          SHA512

          928684b123671c20a389053f513ad3df3385ee3bf56c638fb47ca77754ee863f01401d84c5541e28d1376e70bb816e09ff18ba5def4b9a4e54fa036676068b4e

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/116-17-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB

        • memory/116-20-0x00000000020F0000-0x00000000020F6000-memory.dmp

          Filesize

          24KB

        • memory/116-26-0x0000000000630000-0x0000000000636000-memory.dmp

          Filesize

          24KB

        • memory/116-49-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB

        • memory/1372-0-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB

        • memory/1372-1-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/1372-2-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/1372-3-0x0000000000680000-0x0000000000686000-memory.dmp

          Filesize

          24KB

        • memory/1372-18-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB