Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/10/2024, 17:58

General

  • Target
    0ff9f737dcdaa4b48bb4a46d589c5cdd_JaffaCakes118.dll
  • Size 560KB
  • Sample241003-wkfeyasdkc
  • SHA256 f8b5ebfaccb0631a91978a65ea792564d5170cfc0005daa12efb8c5ad1b8ac55
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Ramnit

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

  • UAC bypass 3 TTPs 1 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 3 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Program crash 3 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 38 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 49 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ff9f737dcdaa4b48bb4a46d589c5cdd_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4604
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\0ff9f737dcdaa4b48bb4a46d589c5cdd_JaffaCakes118.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3332
      • C:\Users\Admin\AppData\Local\Temp\6xDn2t3
        "6xDn2t3"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3968
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
            PID:2684
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2684 -s 204
              5⤵
              • Program crash
              PID:4756
          • C:\Program Files (x86)\Internet Explorer\iexplore.exe
            "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2440
            • 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:3360
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3360 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4832
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3360 CREDAT:17416 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2280
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            4⤵
              PID:816
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 816 -s 204
                5⤵
                • Program crash
                PID:2076
            • C:\Program Files (x86)\Internet Explorer\iexplore.exe
              "C:\Program Files (x86)\Internet Explorer\iexplore.exe"
              4⤵
              • System Location Discovery: System Language Discovery
              • Suspicious use of WriteProcessMemory
              PID:520
              • C:\Program Files\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
                5⤵
                • Modifies Internet Explorer settings
                PID:1236
            • C:\Users\Admin\AppData\Local\Temp\qbklissydnfiejwe.exe
              "C:\Users\Admin\AppData\Local\Temp\qbklissydnfiejwe.exe" elevate
              4⤵
              • Checks computer location settings
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              • Suspicious use of WriteProcessMemory
              PID:2288
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\qbklissydnfiejwe.exe"" admin
                5⤵
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:4324
                • C:\Users\Admin\AppData\Local\Temp\qbklissydnfiejwe.exe
                  "C:\Users\Admin\AppData\Local\Temp\qbklissydnfiejwe.exe" admin
                  6⤵
                  • UAC bypass
                  • Executes dropped EXE
                  • Checks whether UAC is enabled
                  • Suspicious use of AdjustPrivilegeToken
                  • System policy modification
                  PID:640
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 3332 -s 624
            3⤵
            • Program crash
            PID:3224
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3332 -ip 3332
        1⤵
          PID:4836
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2684 -ip 2684
          1⤵
            PID:644
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 816 -ip 816
            1⤵
              PID:3084

            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 46d5cd7ff558e5c788807eb674587359c6a660cef091eb420676977e49833d53
                  • MD5 SHA1 SHA512

                  7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
                  • Size 404B
                  • SHA256 e48523fc37b0a63f0381d8f66b1acba93c55654dc21bd990bda5a9001875621d
                  • MD5 SHA1 SHA512

                  verFCA0.tmp

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verFCA0.tmp
                  • Size 15KB
                  • SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
                  • MD5 SHA1 SHA512 SSDEEP

                  suggestions[1].en-US

                  • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\IFM58U6K\suggestions[1].en-US
                  • Size 17KB
                  • SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
                  • MD5 SHA1 SHA512 SSDEEP

                  6xDn2t3

                  • Path C:\Users\Admin\AppData\Local\Temp\6xDn2t3
                  • Size 91KB
                  • SHA256 d36631b46cdce695237f408057ca3463a2487a9a9a32887e8b5001ff50c0718d
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/640-39-0x0000000000400000-0x000000000043A000-memory.dmp

                  memory/2288-31-0x0000000000400000-0x000000000043A000-memory.dmp

                  memory/2684-13-0x0000000000FE0000-0x0000000000FE1000-memory.dmp

                  memory/2684-12-0x0000000001240000-0x0000000001241000-memory.dmp

                  memory/3332-4-0x0000000010050000-0x0000000010051000-memory.dmp

                  memory/3332-0-0x0000000000860000-0x0000000000861000-memory.dmp

                  memory/3968-8-0x00000000004B0000-0x00000000004B1000-memory.dmp

                  memory/3968-21-0x0000000000400000-0x000000000043A000-memory.dmp

                  memory/3968-22-0x0000000000400000-0x000000000043A000-memory.dmp

                  memory/3968-23-0x0000000077082000-0x0000000077083000-memory.dmp

                  memory/3968-20-0x0000000077082000-0x0000000077083000-memory.dmp

                  memory/3968-16-0x0000000000400000-0x000000000043A000-memory.dmp

                  memory/3968-14-0x0000000000400000-0x000000000043A000-memory.dmp

                  memory/3968-9-0x00000000004C0000-0x00000000004C1000-memory.dmp

                  memory/3968-11-0x0000000000400000-0x000000000043A000-memory.dmp

                  memory/3968-5-0x0000000000400000-0x000000000043A000-memory.dmp