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Analysis

  • max time kernel
    131s
  • max time network
    134s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/09/2024, 03:25

General

  • Target

    2024-09-08_1b70fa69abc3c4ede82d34aa2041caae_cryptolocker.exe

  • Size

    83KB

  • MD5

    1b70fa69abc3c4ede82d34aa2041caae

  • SHA1

    8544745e111638d73257fae02815726740afa5fe

  • SHA256

    16aba74b13cf43d84f3aaa4507fe5864911716316c24838026a2d2b480a86fa2

  • SHA512

    8067556165e65e5c77a4c5e738e9867f87ca6ac2fe517b240b2e1c2fe51f6e8b6ddf1dd5126c627c6a4dbf26974c15bdd7a9315e373765dd6e3424cc45b77f60

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2EMMr3+:TCjsIOtEvwDpj5HE/OUHnSMY

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\2024-09-08_1b70fa69abc3c4ede82d34aa2041caae_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-08_1b70fa69abc3c4ede82d34aa2041caae_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1480
    • 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:1420
  • 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 --field-trial-handle=2540,i,7447299413640964517,4240724842020506306,262144 --variations-seed-version --mojo-platform-channel-handle=4356 /prefetch:8
    1⤵
      PID:4528

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      83KB

      MD5

      de5fe090089693fbfcffbd40a9b3479b

      SHA1

      204f5910a869149a07cf002ecfecd89b956587d9

      SHA256

      ee6958f0d6c720f65926af3e3507b7090f36f4135d4f2864cff640edad4e3a61

      SHA512

      62b27919f8581289da5465cef53808a3e2a881d09bfcfe51e2b2a9387384ca21b83dd6a25add44cab705c2c0f8e5e4c4c404b9a8e51ebc3526241f360525c509

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/1420-18-0x0000000002080000-0x0000000002086000-memory.dmp

      Filesize

      24KB

    • memory/1420-25-0x00000000005B0000-0x00000000005B6000-memory.dmp

      Filesize

      24KB

    • memory/1420-48-0x0000000000500000-0x000000000050E000-memory.dmp

      Filesize

      56KB

    • memory/1480-0-0x0000000000500000-0x000000000050E000-memory.dmp

      Filesize

      56KB

    • memory/1480-1-0x0000000002210000-0x0000000002216000-memory.dmp

      Filesize

      24KB

    • memory/1480-2-0x0000000002210000-0x0000000002216000-memory.dmp

      Filesize

      24KB

    • memory/1480-3-0x0000000002240000-0x0000000002246000-memory.dmp

      Filesize

      24KB

    • memory/1480-24-0x0000000000500000-0x000000000050E000-memory.dmp

      Filesize

      56KB