Analysis

  • max time kernel
    93s
  • max time network
    142s
  • 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, 15:23

General

  • Target

    0f5c5f387363e8ea2da8a416265495f8_JaffaCakes118.dll

  • Size

    992KB

  • MD5

    0f5c5f387363e8ea2da8a416265495f8

  • SHA1

    210be10e8149a1b206a2e0f9bd530420f4fc5114

  • SHA256

    c0d95efec5a7554273d6f3e98ad3b7bf6573374034849757894408206e80ad0f

  • SHA512

    0f253c881b7b67578c648704806587ae1e2a3d71bdb43907d68bef3233521c1819cdb79aaafae9b749e7ef7b6afa898afe6b95a866100bdb379c2b1bb537314b

  • SSDEEP

    24576:AatFGOH8KzJauobwEK10bVWyBc8TznlwWhLE32GRIVRXnRmqeJthax8:LvGOH8K1fosEHbVI8TznGWJ8I7BmqeJ3

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 2 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\0f5c5f387363e8ea2da8a416265495f8_JaffaCakes118.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4928
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\0f5c5f387363e8ea2da8a416265495f8_JaffaCakes118.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1724
      • 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:4528
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
            PID:5012
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 5012 -s 204
              5⤵
              • Program crash
              PID:2812
          • 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:2156
            • 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:1056
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1056 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1120
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1056 CREDAT:17416 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2308
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            4⤵
              PID:64
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 64 -s 204
                5⤵
                • Program crash
                PID:2672
            • 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:3048
              • C:\Program Files\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
                5⤵
                • Modifies Internet Explorer settings
                PID:3004
            • C:\Users\Admin\AppData\Local\Temp\omscywumeynskoop.exe
              "C:\Users\Admin\AppData\Local\Temp\omscywumeynskoop.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:3536
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /C ""C:\Users\Admin\AppData\Local\Temp\omscywumeynskoop.exe"" admin
                5⤵
                • System Location Discovery: System Language Discovery
                • Suspicious use of WriteProcessMemory
                PID:3272
                • C:\Users\Admin\AppData\Local\Temp\omscywumeynskoop.exe
                  "C:\Users\Admin\AppData\Local\Temp\omscywumeynskoop.exe" admin
                  6⤵
                  • UAC bypass
                  • Executes dropped EXE
                  • Checks whether UAC is enabled
                  • Suspicious use of AdjustPrivilegeToken
                  • System policy modification
                  PID:3052
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5012 -ip 5012
        1⤵
          PID:3064
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 64 -ip 64
          1⤵
            PID:1152

          Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                  Filesize

                  471B

                  MD5

                  6de4427d02d49cee2c46a8fead1fafa8

                  SHA1

                  bee49bf0e4452ca72442face8e655bf4a8c3af17

                  SHA256

                  46d5cd7ff558e5c788807eb674587359c6a660cef091eb420676977e49833d53

                  SHA512

                  c80311bb92f9f49de96d06e9a76a3ef0310365999f00f401fd003d438b66744a88f093b5887e1723c6b8179798697ec24c4b2bda489323337f6cec6d28ef6434

                • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

                  Filesize

                  404B

                  MD5

                  bbd019afa7000d923525e8f1495804f1

                  SHA1

                  a4090199c308f25dd784c2983cb2d78a14eb48e6

                  SHA256

                  72ece1459bd2751355988dc443a0101e1a3e76bd5c712c33ea65f7eb5ae91116

                  SHA512

                  ccbea92085d316a46056f7766b697f04c54396dc8945f33c8bbd494fcb66444d17301f075a832b9a39e94871e75b8fa5ed9df0efb4fdd1a5c77cb33f852557eb

                • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver49B6.tmp

                  Filesize

                  15KB

                  MD5

                  1a545d0052b581fbb2ab4c52133846bc

                  SHA1

                  62f3266a9b9925cd6d98658b92adec673cbe3dd3

                  SHA256

                  557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

                  SHA512

                  bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

                • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\O8WYVOD7\suggestions[1].en-US

                  Filesize

                  17KB

                  MD5

                  5a34cb996293fde2cb7a4ac89587393a

                  SHA1

                  3c96c993500690d1a77873cd62bc639b3a10653f

                  SHA256

                  c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

                  SHA512

                  e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

                • C:\Users\Admin\AppData\Local\Temp\6xDn2t3

                  Filesize

                  91KB

                  MD5

                  e9639538d169c463914f6b2940eae754

                  SHA1

                  9d4fcf5d5cf2dcfb1ec07be9861b946f81f91647

                  SHA256

                  d36631b46cdce695237f408057ca3463a2487a9a9a32887e8b5001ff50c0718d

                  SHA512

                  b8b708a2ebcec4897ce27c97caf79105f0500937f0ec716f72aefa675968479645c0c5ddf8aa73ee7d12ff4ed565a53436902c7a1477c007bd2ce21a14d0fb21

                • memory/1724-4-0x0000000010019000-0x000000001001A000-memory.dmp

                  Filesize

                  4KB

                • memory/1724-0-0x0000000000680000-0x0000000000681000-memory.dmp

                  Filesize

                  4KB

                • memory/3052-49-0x0000000000400000-0x000000000043A000-memory.dmp

                  Filesize

                  232KB

                • memory/3536-44-0x0000000000400000-0x000000000043A000-memory.dmp

                  Filesize

                  232KB

                • memory/4528-9-0x0000000000560000-0x0000000000561000-memory.dmp

                  Filesize

                  4KB

                • memory/4528-19-0x00000000779F2000-0x00000000779F3000-memory.dmp

                  Filesize

                  4KB

                • memory/4528-16-0x0000000000400000-0x000000000043A000-memory.dmp

                  Filesize

                  232KB

                • memory/4528-21-0x0000000000400000-0x000000000043A000-memory.dmp

                  Filesize

                  232KB

                • memory/4528-23-0x00000000779F2000-0x00000000779F3000-memory.dmp

                  Filesize

                  4KB

                • memory/4528-22-0x0000000000400000-0x000000000043A000-memory.dmp

                  Filesize

                  232KB

                • memory/4528-14-0x0000000000400000-0x000000000043A000-memory.dmp

                  Filesize

                  232KB

                • memory/4528-10-0x0000000000400000-0x000000000043A000-memory.dmp

                  Filesize

                  232KB

                • memory/4528-8-0x0000000000550000-0x0000000000551000-memory.dmp

                  Filesize

                  4KB

                • memory/4528-5-0x0000000000400000-0x000000000043A000-memory.dmp

                  Filesize

                  232KB

                • memory/5012-12-0x00000000006E0000-0x00000000006E1000-memory.dmp

                  Filesize

                  4KB

                • memory/5012-13-0x00000000006C0000-0x00000000006C1000-memory.dmp

                  Filesize

                  4KB