Analysis

  • max time kernel
    91s
  • max time network
    92s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-12-2024 22:52

General

  • Target

    3ccd4078888812cf02a305ed6ab80a99063e52e11d3c8700a349af1099dacf46.dll

  • Size

    223KB

  • MD5

    b91ef8d11ff6e9dffa84c7ed89c105ac

  • SHA1

    ead5fc975b54096d3ef25f78ce4722841d485def

  • SHA256

    3ccd4078888812cf02a305ed6ab80a99063e52e11d3c8700a349af1099dacf46

  • SHA512

    70773aa317f06a5fadf0081363a65a44506707565b170295ccff0e14bd6d5e2ba9503a90a49af56065622e9d8d1d3906b5a1340a56ea0bfaa3caff9fb362719a

  • SSDEEP

    6144:+woIxQEiHVG8W+rCjr1mpTFO1v5G7LwwPDqsksdH2fd:BK+JX1mu1v5G797qsksdWF

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 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 7 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 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 43 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\3ccd4078888812cf02a305ed6ab80a99063e52e11d3c8700a349af1099dacf46.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4112
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\3ccd4078888812cf02a305ed6ab80a99063e52e11d3c8700a349af1099dacf46.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4236
      • C:\Users\Admin\AppData\Local\Temp\5zHYL23
        "5zHYL23"
        3⤵
        • Checks computer location settings
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:4880
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
            PID:4140
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4140 -s 204
              5⤵
              • Program crash
              PID:3156
          • 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:3236
            • 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:1560
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1560 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:184
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1560 CREDAT:17416 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2232
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            4⤵
              PID:1912
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1912 -s 208
                5⤵
                • Program crash
                PID:4700
            • 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:2288
              • C:\Program Files\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
                5⤵
                • Modifies Internet Explorer settings
                PID:4716
            • C:\Users\Admin\AppData\Local\Temp\bkhgabrnkasifevi.exe
              "C:\Users\Admin\AppData\Local\Temp\bkhgabrnkasifevi.exe"
              4⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:3000
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4140 -ip 4140
        1⤵
          PID:1428
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 360 -p 1912 -ip 1912
          1⤵
            PID:672

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            471B

            MD5

            87f8376b71b1fd35da4b511eff055888

            SHA1

            0c55fba0aa699282bbe4d129dd0ba16d4e377ce9

            SHA256

            a1383ed3b4f8967fb19f5b16bfe41eb3242b296ffc06c1098fbe1d1a04a7003f

            SHA512

            8556ed20a3d9daf8f74b2eceaab6a3773b69d5c9524ba8dbb8af1ad64b2235165e487c41646e357be5906aaa7f0f4c57ff8dc9ea2acc0c87f443d3ad083c9031

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

            Filesize

            404B

            MD5

            2a236f61e9c3bb8fe58e9a8b7ad76f3d

            SHA1

            5b0fcdc1fed917193be9a13893bace3c75c20b3f

            SHA256

            76cd6a199e4cee5ac2068d11e794388ae8c23af2abf82fe52eb187bd2fa26fef

            SHA512

            d039e9f8e02dc5e843a7db73654b35193507c07325ddbe7a15d882d53a326b19da11b74ad191ca4715b8625ac956980e493fc30589ee18f606d418818999a9d5

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\P2UT3MS5\suggestions[1].en-US

            Filesize

            17KB

            MD5

            5a34cb996293fde2cb7a4ac89587393a

            SHA1

            3c96c993500690d1a77873cd62bc639b3a10653f

            SHA256

            c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

            SHA512

            e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

          • C:\Users\Admin\AppData\Local\Temp\5zHYL23

            Filesize

            95KB

            MD5

            59a8da264fd7a5ae49c8ffa33eeb16ce

            SHA1

            c11ca66a4cce9b7496f214041807da451c7eae2a

            SHA256

            a96dcd4fe7b6cb854545e91ebc3612c5f88e9aae6adf62b00af31bb1ab304304

            SHA512

            f05bd6fb82cb6776ef059d7205aecc893a606c742cf0a459830c9780ace0b4a6a938b59cc5b26c2e590b941d07cb8e7890db44fba4e66c5e7d090fe9c39133c7

          • memory/3000-43-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/3000-49-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/3000-50-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/3000-44-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4140-15-0x0000000000800000-0x0000000000801000-memory.dmp

            Filesize

            4KB

          • memory/4140-14-0x0000000000820000-0x0000000000821000-memory.dmp

            Filesize

            4KB

          • memory/4236-4-0x0000000074A71000-0x0000000074A72000-memory.dmp

            Filesize

            4KB

          • memory/4236-0-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

            Filesize

            4KB

          • memory/4880-11-0x00000000004B0000-0x00000000004B1000-memory.dmp

            Filesize

            4KB

          • memory/4880-18-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4880-23-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4880-24-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4880-25-0x0000000077052000-0x0000000077053000-memory.dmp

            Filesize

            4KB

          • memory/4880-22-0x0000000077052000-0x0000000077053000-memory.dmp

            Filesize

            4KB

          • memory/4880-16-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4880-10-0x00000000004A0000-0x00000000004A1000-memory.dmp

            Filesize

            4KB

          • memory/4880-13-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4880-6-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4880-47-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4880-7-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/4880-5-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB