Analysis

  • max time kernel
    124s
  • max time network
    132s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240704-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240704-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-07-2024 00:42

General

  • Target

    2024-07-09_b60a9895a6c4462bd40c11532e814605_cryptolocker.exe

  • Size

    70KB

  • MD5

    b60a9895a6c4462bd40c11532e814605

  • SHA1

    dc620d2028d205e4d826c08a028c963d8ac98168

  • SHA256

    f326334361aef185745aa163f05c5302e9bceb7816e054654097a7d7b21af8b8

  • SHA512

    6a4b87b74535967e1ecc5464a19218fcf59bc0fb54bac9d1408f99f03939726ef266b7d856b20d7aec1848a8dfa2a7d4e45135c1d0e24c25c40fe1f1de3a93cc

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEpE0P/xFI0tS3:6j+1NMOtEvwDpjr8ox8UDEpN/jhy

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\2024-07-09_b60a9895a6c4462bd40c11532e814605_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-07-09_b60a9895a6c4462bd40c11532e814605_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3824
    • 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:3392
  • 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=4208,i,17211346206607097582,14783440229797954268,262144 --variations-seed-version --mojo-platform-channel-handle=4160 /prefetch:8
    1⤵
      PID:1748

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      70KB

      MD5

      2065a5fcee7b605c559857c45282d206

      SHA1

      9b4627aef0e4b7cea17a9ce633dade4a7e661a63

      SHA256

      e22c781278dce342ab2069feb3068b80c5c8ddba71f23e2fd1d8f0d5ea9251e0

      SHA512

      856171808bf5ef5276884a5dde60c2c1e4f778f8c5633482b442dcf9dfa59820f917650d6dc8d51841d11acfc8f128f6c1953235d63a26473ccdff118a632566

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

      Filesize

      315B

      MD5

      a34ac19f4afae63adc5d2f7bc970c07f

      SHA1

      a82190fc530c265aa40a045c21770d967f4767b8

      SHA256

      d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

      SHA512

      42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

    • memory/3392-17-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/3392-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

      Filesize

      24KB

    • memory/3392-21-0x00000000005E0000-0x00000000005E6000-memory.dmp

      Filesize

      24KB

    • memory/3392-47-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/3824-0-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB

    • memory/3824-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

      Filesize

      24KB

    • memory/3824-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

      Filesize

      24KB

    • memory/3824-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

      Filesize

      24KB

    • memory/3824-19-0x0000000000500000-0x000000000050F000-memory.dmp

      Filesize

      60KB