Analysis

  • max time kernel
    94s
  • max time network
    95s
  • 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 13:14

General

  • Target

    a07edacf10fb92be5c7d16ae37f226f571b569b4c9eb08c48d8e46009ad303a1N.dll

  • Size

    223KB

  • MD5

    cf3ebe79774079aa315725d0996fcce0

  • SHA1

    8c5577396ca6d2da53a1de3389b435f5d699bca2

  • SHA256

    a07edacf10fb92be5c7d16ae37f226f571b569b4c9eb08c48d8e46009ad303a1

  • SHA512

    d4fead288ed12f04d794eddccbe32d47d72196896a906b9e63bf2445b9a4a4a0b71cac4a8b16ffc10ead275a5b0560405274689423dc038f805b3d9c0ae8a500

  • SSDEEP

    6144:+woIxQEiHVG8W+rCjr1mpTFO1v5G7LwwPDqsksdH2f:BK+JX1mu1v5G797qsksdW

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 38 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\a07edacf10fb92be5c7d16ae37f226f571b569b4c9eb08c48d8e46009ad303a1N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1224
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a07edacf10fb92be5c7d16ae37f226f571b569b4c9eb08c48d8e46009ad303a1N.dll,#1
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:680
      • 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:1688
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
            PID:4912
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4912 -s 204
              5⤵
              • Program crash
              PID:1488
          • 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:1332
            • 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:1176
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1176 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:528
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1176 CREDAT:17416 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4128
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            4⤵
              PID:3116
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3116 -s 208
                5⤵
                • Program crash
                PID:4324
            • 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:4836
              • C:\Program Files\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files\Internet Explorer\IEXPLORE.EXE"
                5⤵
                • Modifies Internet Explorer settings
                PID:1708
            • C:\Users\Admin\AppData\Local\Temp\cmqymehkokeopmld.exe
              "C:\Users\Admin\AppData\Local\Temp\cmqymehkokeopmld.exe"
              4⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious use of AdjustPrivilegeToken
              PID:2096
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4912 -ip 4912
        1⤵
          PID:4896
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3116 -ip 3116
          1⤵
            PID:4764

          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

            2c38b5f776408db584d29cb4888e5e02

            SHA1

            c2379c408c965653e5b9c22eccb46599b0f1f9a6

            SHA256

            8c24fa364f565a3e94db740b1d65f7f3ae119eb224328339222afab44cfe63dd

            SHA512

            ebb389253f16fd40c4ff6bdf530fdb95b4e5f28c9b2c7ead294aaa28cf4ad9d1787fe5b28536a9ff02441328075f625f9f2205a57284754c039fe0844e453836

          • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver3D43.tmp

            Filesize

            15KB

            MD5

            1a545d0052b581fbb2ab4c52133846bc

            SHA1

            62f3266a9b9925cd6d98658b92adec673cbe3dd3

            SHA256

            557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

            SHA512

            bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

          • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\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/680-4-0x0000000074E11000-0x0000000074E12000-memory.dmp

            Filesize

            4KB

          • memory/680-0-0x0000000001F40000-0x0000000001F41000-memory.dmp

            Filesize

            4KB

          • memory/1688-11-0x00000000008C0000-0x00000000008C1000-memory.dmp

            Filesize

            4KB

          • memory/1688-25-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/1688-5-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/1688-48-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/1688-16-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/1688-17-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/1688-23-0x00000000773F2000-0x00000000773F3000-memory.dmp

            Filesize

            4KB

          • memory/1688-19-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/1688-24-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/1688-12-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/1688-26-0x00000000773F2000-0x00000000773F3000-memory.dmp

            Filesize

            4KB

          • memory/1688-10-0x00000000005D0000-0x00000000005D1000-memory.dmp

            Filesize

            4KB

          • memory/1688-8-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/1688-6-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/2096-49-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/2096-50-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/2096-53-0x0000000000400000-0x0000000000439344-memory.dmp

            Filesize

            228KB

          • memory/2096-54-0x0000000000400000-0x000000000043A000-memory.dmp

            Filesize

            232KB

          • memory/4912-14-0x00000000003A0000-0x00000000003A1000-memory.dmp

            Filesize

            4KB

          • memory/4912-15-0x0000000000380000-0x0000000000381000-memory.dmp

            Filesize

            4KB