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Analysis

  • max time kernel
    93s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/12/2024, 14:46

General

  • Target

    9d554f69b7eca55979ab3df23db86c9ef910d58b61f77d65859272637c499d3d.dll

  • Size

    717KB

  • MD5

    b8eda97eae2ce3649c7b90640a668305

  • SHA1

    838f4b65a5703cebf81f0884317bc81195f11572

  • SHA256

    9d554f69b7eca55979ab3df23db86c9ef910d58b61f77d65859272637c499d3d

  • SHA512

    90b7d8a932885d82ab053ecf6f0babe085bdea6aa4c7109b9622c1cd86670c424a052fb9c720f146f07bf6c7ebca7eada4a6a4f8efb969f776f8935e37d8d1d5

  • SSDEEP

    12288:LNIyZN4+Wv4PLq6Okrh9ZN/hs9DsdcCf/HmWMjV:L9TPmirh9Zdh6OOV

Malware Config

Signatures

  • Ramnit

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

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 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 55 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\9d554f69b7eca55979ab3df23db86c9ef910d58b61f77d65859272637c499d3d.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3004
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\9d554f69b7eca55979ab3df23db86c9ef910d58b61f77d65859272637c499d3d.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2916
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:3056
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:1864
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4964
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4964 -s 204
                6⤵
                • Program crash
                PID:2248
            • 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:2332
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2332 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4104
            • 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:4672
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4672 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2560
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 608
          3⤵
          • Program crash
          PID:4464
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2916 -ip 2916
      1⤵
        PID:4852
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4964 -ip 4964
        1⤵
          PID:744

        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

          863881560832be6db3d7e95507b796d8

          SHA1

          bab29c682b73454cb94d1a0edfaae5fd64d076f6

          SHA256

          1b8c898d463e9947656d97610caa6068a39c17fae72baa9168113364b7f70063

          SHA512

          0556ac3e08e23d12ba2558e3e1320f8c7591359a003c6b98e3d93208361000c3fc25dc13e9f4a3575ef854bd903b32f62a36e541ba10de67f38663d8d8debbcb

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

          Filesize

          404B

          MD5

          c0c8a26ef0cb2dd664acacff7b7b3dba

          SHA1

          6a64aaf60b920e2b03f75b74a2fbc4c276437592

          SHA256

          7e2ffbbb307b2f4728ba6c515b1631c415aa6fc9814d8d215ba7d3394be952d4

          SHA512

          ccfee500a20a03d09f00cfe8f7d9343a4d3aa4075165e25c120cdc130b778b479dadd252502e5fc59674cb3502edb6c99f0ba74ddc4540b97d289067445cef61

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

          Filesize

          404B

          MD5

          5f63db1c312ce276077c9101e6923762

          SHA1

          3cb2c7a2d62bc5e8d92fdc6137e0007602ce3bab

          SHA256

          1ae52061748744a4e1a8818fc5003aeb5dd3dafb7abe3fc96980503d06aee4ff

          SHA512

          8af2aaa15f6eae683e8be60a8232ddbd15415c388e7176eb1455f7bfeb808630adf82f4ab2baa1eaca2f238dc6aa0a501e2912803bb45460f270be7e8d8e2a4f

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{263A6646-C398-11EF-B9B6-DA67B56E6C1B}.dat

          Filesize

          4KB

          MD5

          f195702614b3761b067bae6eb399f624

          SHA1

          6a322487649d4fbf79695f1953f982fe229a8efb

          SHA256

          7c2800646edc6f36d11abc9ba5ffb5387d073bcc2f95961d52ac9cb8cbf89a3f

          SHA512

          2b290a5a445a6ada4c904f33b99b26685e508736628a4dc747723b6481bf8d09a7cf7190bd75147c784a4df9c0640f77f64ecc42101e72f79b57ee6602e221cf

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{263CC874-C398-11EF-B9B6-DA67B56E6C1B}.dat

          Filesize

          5KB

          MD5

          ca5838c5b09819f9f1dbcf29c7beca18

          SHA1

          0aed107cafe0b52728150429f14f6e7ed0ececce

          SHA256

          d2cbe48ac4f7c61e919b7c0f41937efeef31088c6fff75d8006e8d5af2299145

          SHA512

          3169a742743a847d3e3ff0635f9090065f4ab7b27f2f0a5084b0a33beb13c6f7a52327dc7a372be2ab0af9661d08571fa50851954c5765918fbb0d47bfe8908d

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver28D0.tmp

          Filesize

          15KB

          MD5

          1a545d0052b581fbb2ab4c52133846bc

          SHA1

          62f3266a9b9925cd6d98658b92adec673cbe3dd3

          SHA256

          557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

          SHA512

          bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\9MFSIIMR\suggestions[1].en-US

          Filesize

          17KB

          MD5

          5a34cb996293fde2cb7a4ac89587393a

          SHA1

          3c96c993500690d1a77873cd62bc639b3a10653f

          SHA256

          c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

          SHA512

          e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

        • C:\Windows\SysWOW64\rundll32mgr.exe

          Filesize

          132KB

          MD5

          2613f374056a1d7e6885f1216fc85400

          SHA1

          1c41483da911afba432a5862cf59ed9449bac2e3

          SHA256

          2004c482c127e1eeeff011c498c355aa21d3049d76365f19bd01c28cde631154

          SHA512

          6a215ef6e0083163c0f0c0d22b04e131e4873df3dc98d660277103398fc7de1d1f2b1c6d14b565430eb3aeec30ae9c4a76c0ab37e53e036adff179397cef3055

        • memory/1864-38-0x00000000775E2000-0x00000000775E3000-memory.dmp

          Filesize

          4KB

        • memory/1864-41-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1864-42-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1864-37-0x0000000000070000-0x0000000000071000-memory.dmp

          Filesize

          4KB

        • memory/1864-29-0x0000000000430000-0x0000000000431000-memory.dmp

          Filesize

          4KB

        • memory/1864-32-0x00000000775E2000-0x00000000775E3000-memory.dmp

          Filesize

          4KB

        • memory/1864-31-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2916-36-0x0000000010000000-0x00000000100B9000-memory.dmp

          Filesize

          740KB

        • memory/2916-1-0x0000000010000000-0x00000000100B9000-memory.dmp

          Filesize

          740KB

        • memory/3056-12-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3056-14-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3056-4-0x0000000000400000-0x0000000000433000-memory.dmp

          Filesize

          204KB

        • memory/3056-7-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3056-6-0x0000000000401000-0x0000000000405000-memory.dmp

          Filesize

          16KB

        • memory/3056-16-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3056-25-0x0000000000401000-0x0000000000405000-memory.dmp

          Filesize

          16KB

        • memory/3056-9-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3056-13-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3056-10-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3056-11-0x00000000005B0000-0x00000000005B1000-memory.dmp

          Filesize

          4KB

        • memory/3056-8-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/4964-35-0x0000000000970000-0x0000000000971000-memory.dmp

          Filesize

          4KB

        • memory/4964-34-0x00000000009A0000-0x00000000009A1000-memory.dmp

          Filesize

          4KB