Analysis

  • max time kernel
    141s
  • max time network
    158s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11-04-2024 03:47

General

  • Target

    2024-04-11_61bcaf87bdc186a3e6891bb29ffedf68_ryuk.exe

  • Size

    2.1MB

  • MD5

    61bcaf87bdc186a3e6891bb29ffedf68

  • SHA1

    fc712a2b14227cbf36e467722cd1cbb81995626a

  • SHA256

    d4e31fca02ce074a06ba255678efaeeff80da6601facbd8f011529942816f92c

  • SHA512

    b10ff7203deaf5f60f30db432b9ffff1e271772a55ba2dd102020cd358da2cd4f8a54ea7a9ea809a0c4ed4ac34e3c599327471dab380575b5b47680eaf730f7f

  • SSDEEP

    49152:kRaYSDA+ouZ/K0tDmN1JXLkZRJ+0Y8TCUiJVHkh2FBUgt6:kRUZ/K0tKN1JXKsdJJ6AFBUgA

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-11_61bcaf87bdc186a3e6891bb29ffedf68_ryuk.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-11_61bcaf87bdc186a3e6891bb29ffedf68_ryuk.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious use of AdjustPrivilegeToken
    PID:4292
  • 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 --mojo-platform-channel-handle=3720 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:3196

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4292-0-0x0000000000510000-0x0000000000570000-memory.dmp

      Filesize

      384KB

    • memory/4292-1-0x0000000140000000-0x000000014022F000-memory.dmp

      Filesize

      2.2MB

    • memory/4292-10-0x0000000000510000-0x0000000000570000-memory.dmp

      Filesize

      384KB

    • memory/4292-8-0x0000000000510000-0x0000000000570000-memory.dmp

      Filesize

      384KB

    • memory/4292-12-0x0000000140000000-0x000000014022F000-memory.dmp

      Filesize

      2.2MB