Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-05-2024 09:04

General

  • Target

    599ba047a5f78a122a99547862b692f8_JaffaCakes118.dll

  • Size

    5.0MB

  • MD5

    599ba047a5f78a122a99547862b692f8

  • SHA1

    5131f90bd2a8831034da0c8ae81812f629c2d51e

  • SHA256

    83c499d4faeaf878a311c1f68ce8795a86d46f9bfc1599010394aa3106daba60

  • SHA512

    ff6ba51959950b510ad3805680cda5bcc2676454f73ee2bf1ccad41610909365e4aedb15bb9681c602bdbb051d4196a1d859182cb6c3ad24b75756b043d7b57b

  • SSDEEP

    98304:d8qPoZ1aRxcSUDk36SAEdhvxWa9P593R8yAVp2H:d8qPU1Cxcxk3ZAEUadzR8yc4H

Malware Config

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Contacts a large (3201) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Executes dropped EXE 3 IoCs
  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Drops file in Windows directory 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\599ba047a5f78a122a99547862b692f8_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2792
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\599ba047a5f78a122a99547862b692f8_JaffaCakes118.dll,#1
      2⤵
      • Drops file in Windows directory
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\WINDOWS\mssecsvc.exe
        C:\WINDOWS\mssecsvc.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Windows directory
        PID:1280
        • C:\WINDOWS\tasksche.exe
          C:\WINDOWS\tasksche.exe /i
          4⤵
          • Executes dropped EXE
          PID:1580
  • C:\WINDOWS\mssecsvc.exe
    C:\WINDOWS\mssecsvc.exe -m security
    1⤵
    • Executes dropped EXE
    PID:2768
  • 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=4268,i,18168883380598738769,14202261231630113808,262144 --variations-seed-version --mojo-platform-channel-handle=4300 /prefetch:8
    1⤵
      PID:4548

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\mssecsvc.exe

      Filesize

      3.6MB

      MD5

      f5efcb9578e09bd52832cd8f54c48412

      SHA1

      0d9f160b17f83003017df029ac882d9063815b0a

      SHA256

      e3a2eb6e22f140e0643c9de6a2a9b6647326cd8209e4e1fa170a96b129399c8d

      SHA512

      92b3e8127c16e59a3589aa3795e0dd09a1fc803be8138f75b679eb9b8085b81ce8e25908f279b17237ebcc9f87c0db615a2dbb38cd42c01115cd0cc1a7bbf5d6

    • C:\Windows\tasksche.exe

      Filesize

      3.4MB

      MD5

      5447d9c6b5aaf314fb733eefe6213c1b

      SHA1

      0df4c25989b33da04b52de59a39d90ea7940e790

      SHA256

      5cf0ed45cf93cf6112099e3eb6b3b5266a1b180df9904ae18f9699430984f289

      SHA512

      646463f50172d247f4f70901e864b36728616997f4dd478a861032e32b45b2335eaad02980c3e61987ad5b29a7d26bde286b3567efe748845a1f1e38768df940