Analysis

  • max time kernel
    125s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2024, 15:29

General

  • Target

    13eb27e13093204ffed936e4f74fa4a0_JaffaCakes118.exe

  • Size

    485KB

  • MD5

    13eb27e13093204ffed936e4f74fa4a0

  • SHA1

    8c6a49265f59720917729072762be91a2039aaf0

  • SHA256

    8886cc1b9facb1d083fe81b8789352e62ddf98ff9217cf2d5d9ae9966f9c7dfe

  • SHA512

    79c5887bafcbed88fd01593d70c891acc5ff5740f7267c2c9c363d25c723ab14ce124d002ae59c3b7bf777f022243db315e388ab4b3c1019b845a970d7df1986

  • SSDEEP

    12288:iroCc//////azg728wDtJOJ35ed+GU0ymlOEF+JXPBlkJ2EvmpC8+T:AoCc//////agkDtJwN0yNEFqXPBeT

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Indicator Removal: File Deletion 1 TTPs

    Adversaries may delete files left behind by the actions of their intrusion activity.

  • Drops file in Program Files directory 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 16 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 48 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\13eb27e13093204ffed936e4f74fa4a0_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\13eb27e13093204ffed936e4f74fa4a0_JaffaCakes118.exe"
    1⤵
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2280
    • C:\Windows\SysWOW64\net.exe
      net stop "Security Center"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:220
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Security Center"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:5116
    • C:\Windows\SysWOW64\net.exe
      net stop "Windows Firewall/Internet Connection Sharing (ICS)"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2096
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Windows Firewall/Internet Connection Sharing (ICS)"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2192
    • C:\Windows\SysWOW64\net.exe
      net stop System Restore Service
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2196
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop System Restore Service
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4388
    • C:\Windows\SysWOW64\net.exe
      net stop "Security Center"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5024
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Security Center"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2076
    • C:\Windows\SysWOW64\net.exe
      net stop "Windows Firewall/Internet Connection Sharing (ICS)"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2180
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop "Windows Firewall/Internet Connection Sharing (ICS)"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1140
    • C:\Windows\SysWOW64\net.exe
      net stop System Restore Service
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2844
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop System Restore Service
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2336
    • C:\Users\Admin\AppData\Local\Temp\wmnet.exe
      C:\Users\Admin\AppData\Local\Temp\wmnet.exe
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2860
      • C:\Program Files\Internet Explorer\IEXPLORE.EXE
        about:blank
        3⤵
          PID:4452
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c del C:\Users\Admin\AppData\Local\Temp\wmnet.exe
          3⤵
          • System Location Discovery: System Language Discovery
          PID:736
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c del C:\avp.exe
        2⤵
        • System Location Discovery: System Language Discovery
        PID:2840
    • 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=4344,i,11391966286255097843,10588851088187498028,262144 --variations-seed-version --mojo-platform-channel-handle=4112 /prefetch:8
      1⤵
        PID:3052

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              596KB

              MD5

              9ffb0e688f848104137131d9c490448f

              SHA1

              ef5f9ce20543299b5c5bec334288d16b9a032d10

              SHA256

              c96ee198b28c9a5c41f86e2e5f56cbec4de7f6168aeee9a045c893643ed5f4c4

              SHA512

              f94bc13b6d19454e8f82f0734522de3957c24aec7081f767ccb33f9aa00497b99e593ccd14179306493388746e62dcdf97febc95ee0e1108fdcf5f459601d4a9

            • memory/2280-7-0x000000000F000000-0x000000000F081000-memory.dmp

              Filesize

              516KB

            • memory/2860-6-0x0000000000400000-0x000000000049B000-memory.dmp

              Filesize

              620KB