Analysis

  • max time kernel
    151s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/06/2024, 07:35

General

  • Target

    b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe

  • Size

    53KB

  • MD5

    998be66f56f9e598cf872629927ee026

  • SHA1

    f5e3d7f961db9ea296e274ebedc21277262423c1

  • SHA256

    b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430

  • SHA512

    024d386121292a4cd9e406d87f52695aa282b28725cf234d9a00e415ab55b9aa080dbd00fad718ed3ff0c3f889e6a770a21229c10f8b213ad17c5fe6a4dfdfb8

  • SSDEEP

    1536:vN8g8r8QNEHxl2N7Kp3StjEMjmLM3ztDJWZsXy4JzxPMk:OEHxl2NJJjmLM3zRJWZsXy4Jt

Score
10/10

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe
    "C:\Users\Admin\AppData\Local\Temp\b7c57e0f512d3fe3f7416a8ffa3d54eb96ca5ddb9701dcabf527afd8bebcd430.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1604
    • C:\Users\Admin\huiopum.exe
      "C:\Users\Admin\huiopum.exe"
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:3876
  • 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=3756 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2364

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\huiopum.exe

      Filesize

      53KB

      MD5

      5e8936e93627044c1bd244694f00eef1

      SHA1

      e4816e8492c1ebcb8508a299432e696933a0c7eb

      SHA256

      788f9d70c0bca7f0e0b16540314736ce48f8e5993dc5c36d5be2192864d5bcee

      SHA512

      05ce275f7846c5596ef7d0fc91067c628d803bedd1027b6ba1e1debefc5cfb304f413b69dc6831194d1ea7c6e4649d449f64acccece588777bb8c9cbddf20b2c

    • memory/1604-0-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB

    • memory/3876-34-0x0000000000400000-0x0000000000412000-memory.dmp

      Filesize

      72KB