Analysis

  • max time kernel
    142s
  • 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
    20/06/2024, 17:24

General

  • Target
    0833800a5a7f7c498622d103bf6c9f54_JaffaCakes118.exe
  • Size 124KB
  • Sample240620-vy2pnatbmn
  • SHA256 b21d36aa4b1736fc7c87ed3f80edbe9781709fd30dec93e8d3fbaf9573219060
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Checks computer location settings 2 TTPs 1 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).

  • Program crash 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 36 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0833800a5a7f7c498622d103bf6c9f54_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\0833800a5a7f7c498622d103bf6c9f54_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2112
    • C:\Windows\SysWOW64\svchost.exe
      C:\Windows\system32\svchost.exe
      2⤵
        PID:3868
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3868 -s 196
          3⤵
          • Program crash
          PID:3104
      • C:\Program Files (x86)\Internet Explorer\iexplore.exe
        "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2068
        • C:\Program Files\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:32
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:32 CREDAT:17410 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4836
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:32 CREDAT:17416 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:4444
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe
        2⤵
          PID:4040
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 4040 -s 208
            3⤵
            • Program crash
            PID:4312
        • C:\Program Files (x86)\Internet Explorer\iexplore.exe
          "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3196
          • C:\Program Files\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
            3⤵
            • Modifies Internet Explorer settings
            PID:4796
        • C:\Users\Admin\AppData\Local\Temp\cupjyklilxphwodp.exe
          "C:\Users\Admin\AppData\Local\Temp\cupjyklilxphwodp.exe"
          2⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:1116
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 3868 -ip 3868
        1⤵
          PID:3212
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 4040 -ip 4040
          1⤵
            PID:3628
          • 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=1408 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
            1⤵
              PID:3992

            Network

                  MITRE ATT&CK Enterprise v15

                  Replay Monitor

                  Loading Replay Monitor...

                  Downloads

                  7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
                  • Size 471B
                  • SHA256 9ff2020f99ff7cefa80d5551715f465a89592320ea24e72c001e11a216445cb1
                  • MD5 SHA1 SHA512

                  7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
                  • Size 404B
                  • SHA256 e29947b3534eb46365427de5693f101554e0e2302b0bb75d0a7e26f342fb6179
                  • MD5 SHA1 SHA512

                  suggestions[1].en-US

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\O8VM10HV\suggestions[1].en-US
                  • Size 17KB
                  • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
                  • MD5 SHA1 SHA512 SSDEEP

                  cupjyklilxphwodp.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\cupjyklilxphwodp.exe
                  • Size 124KB
                  • SHA256 b21d36aa4b1736fc7c87ed3f80edbe9781709fd30dec93e8d3fbaf9573219060
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/1116-43-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/1116-42-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/1116-37-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/2112-6-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/2112-0-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/2112-10-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/2112-11-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/2112-16-0x0000000077E22000-0x0000000077E23000-memory.dmp

                  memory/2112-17-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/2112-19-0x0000000077E22000-0x0000000077E23000-memory.dmp

                  memory/2112-1-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/2112-7-0x0000000020010000-0x000000002001C000-memory.dmp

                  memory/2112-29-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/2112-2-0x0000000000400000-0x000000000043A20C-memory.dmp

                  memory/2112-4-0x0000000000520000-0x0000000000521000-memory.dmp

                  memory/2112-40-0x0000000000400000-0x000000000043B000-memory.dmp

                  memory/2112-5-0x0000000000530000-0x0000000000531000-memory.dmp

                  memory/3868-9-0x00000000001D0000-0x00000000001D1000-memory.dmp

                  memory/3868-8-0x00000000001F0000-0x00000000001F1000-memory.dmp