Analysis

  • max time kernel
    125s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-06-2024 19:42

General

  • Target

    20240609734990006671224cc5fb8d06037e429acryptolocker.exe

  • Size

    63KB

  • MD5

    734990006671224cc5fb8d06037e429a

  • SHA1

    98d97b0917465d473d04c277a9951066231420d5

  • SHA256

    17d45bb8bbd134d6e5c9ef3594c3ce036d97b1acd72a76d6c039fa2da6a3ca3e

  • SHA512

    99305643e54b3888ab6156e62c183115711ce3d1b06dba0fda1be9b43e1f51ef48e3f7670f32003a278ad514a66872afcea31da42a3bf0b6dd8d9d494c7aaf88

  • SSDEEP

    768:3Uz7yVEhs9+Hs1SQtOOtEvwDpjO9+4hdCY8EQMjpi/Wpi3B3URiLqCyLuAx8XG9x:3P+HsMQMOtEvwDpjoHy7B3g9CWuAxWo

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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\20240609734990006671224cc5fb8d06037e429acryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\20240609734990006671224cc5fb8d06037e429acryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1028
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:1008
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4316,i,15721081447618313297,6839074028983272033,262144 --variations-seed-version --mojo-platform-channel-handle=3976 /prefetch:8
    1⤵
      PID:4828

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      63KB

      MD5

      b7e7e7a1010433d64623d1d99d950990

      SHA1

      eddabbcbe17422e355d082f1d0b75ccd9fe199de

      SHA256

      d5fe54eb508e9e865b404f10fb5312a4bf8bb49e2e15380f57112a7e66966073

      SHA512

      bd07fa1bbf86fde9ee190df55e3b09a18bcfa22f6c313029494b94fc68136f031390776b5ec5a3647fa0a4918155082038042a1af4bce1ff4001647c633de4cf

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/1008-26-0x00000000004D0000-0x00000000004D6000-memory.dmp

      Filesize

      24KB

    • memory/1008-20-0x00000000004F0000-0x00000000004F6000-memory.dmp

      Filesize

      24KB

    • memory/1008-19-0x0000000000500000-0x000000000050B000-memory.dmp

      Filesize

      44KB

    • memory/1008-49-0x0000000000500000-0x000000000050B000-memory.dmp

      Filesize

      44KB

    • memory/1028-0-0x0000000000500000-0x000000000050B000-memory.dmp

      Filesize

      44KB

    • memory/1028-1-0x0000000000490000-0x0000000000496000-memory.dmp

      Filesize

      24KB

    • memory/1028-2-0x0000000000510000-0x0000000000516000-memory.dmp

      Filesize

      24KB

    • memory/1028-9-0x0000000000490000-0x0000000000496000-memory.dmp

      Filesize

      24KB

    • memory/1028-17-0x0000000000500000-0x000000000050B000-memory.dmp

      Filesize

      44KB