Analysis

  • max time kernel
    142s
  • max time network
    152s
  • 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, 04:28

General

  • Target
    02cdfdc0d1b43b93214d6b1f4a6b124b_JaffaCakes118.dll
  • Size 212KB
  • Sample240620-e3ta3stbjk
  • SHA256 654c9630204e37ac0137ca00e8dbf2b85d669dd09401f345c6fd72116c8b56f0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 11 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in System32 directory 1 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\02cdfdc0d1b43b93214d6b1f4a6b124b_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1964
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\02cdfdc0d1b43b93214d6b1f4a6b124b_JaffaCakes118.dll,#1
      2⤵
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1076
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:4428
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:660
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:1324
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1324 -s 84
                6⤵
                • Program crash
                PID:1572
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:4760
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4760 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4140
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:4360
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4360 CREDAT:17410 /prefetch:2
                6⤵
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:5000
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 1324 -ip 1324
      1⤵
        PID:3132
      • 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=5240 --field-trial-handle=3240,i,13319578961094268484,16557498665191861597,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:3056

        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 009768e52ded8da33ac7d96d521e882eef9765278997f2ce47311f637696d9c7
              • MD5 SHA1 SHA512

              7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
              • Size 404B
              • SHA256 acebc413db3d8d14bdf9ed52aae66cfb538c7245e56491b1b31fc9ea288a1e7d
              • MD5 SHA1 SHA512

              RecoveryStore.{911C46B6-2EBD-11EF-B9F7-CE945492B8DF}.dat

              • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{911C46B6-2EBD-11EF-B9F7-CE945492B8DF}.dat
              • Size 3KB
              • SHA256 c93b9d515e4670adefd7b963fca15fa3f7895066b9b72ad6786e74ea1c2c16ba
              • MD5 SHA1 SHA512

              RecoveryStore.{911C6DC6-2EBD-11EF-B9F7-CE945492B8DF}.dat

              • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{911C6DC6-2EBD-11EF-B9F7-CE945492B8DF}.dat
              • Size 5KB
              • SHA256 e01822af386acd2110d937fc49782b337b446104358bd1593abc77350184b941
              • MD5 SHA1 SHA512 SSDEEP

              verBD12.tmp

              • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verBD12.tmp
              • Size 15KB
              • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
              • MD5 SHA1 SHA512 SSDEEP

              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

              rundll32mgr.exe

              • Path C:\Windows\SysWOW64\rundll32mgr.exe
              • Size 95KB
              • SHA256 59d2fce6eeae355a4037db753161041426c2c395b8c1436ddf37f9320e758677
              • MD5 SHA1 SHA512 SSDEEP

              memory/660-37-0x00000000779F2000-0x00000000779F3000-memory.dmp

              memory/660-43-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/660-41-0x0000000000400000-0x0000000000439000-memory.dmp

              memory/660-38-0x0000000000070000-0x0000000000071000-memory.dmp

              memory/660-23-0x0000000000400000-0x0000000000439000-memory.dmp

              memory/660-30-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/660-31-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/660-32-0x0000000000060000-0x0000000000061000-memory.dmp

              memory/660-33-0x00000000779F2000-0x00000000779F3000-memory.dmp

              memory/1076-0-0x0000000010000000-0x0000000010037000-memory.dmp

              memory/1324-35-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

              memory/1324-36-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

              memory/4428-21-0x0000000000401000-0x0000000000405000-memory.dmp

              memory/4428-13-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/4428-16-0x0000000000900000-0x0000000000901000-memory.dmp

              memory/4428-17-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/4428-8-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/4428-9-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/4428-11-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/4428-12-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/4428-10-0x0000000000400000-0x0000000000421000-memory.dmp

              memory/4428-7-0x0000000000400000-0x0000000000439000-memory.dmp

              memory/4428-6-0x0000000000401000-0x0000000000405000-memory.dmp

              memory/4428-5-0x0000000000400000-0x0000000000439000-memory.dmp