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
    31-12-2024 06:11

General

  • Target

    374ccf84208a769f243210025cd6060afd66b900d8c3a66c4edfdbdbbef88963N.dll

  • Size

    387KB

  • MD5

    a5aa41114d3e03217cfd04794d6113c0

  • SHA1

    3db385d1acdfefc6d678c07e7568eef7d66ef442

  • SHA256

    374ccf84208a769f243210025cd6060afd66b900d8c3a66c4edfdbdbbef88963

  • SHA512

    35fd3749a0b12f8e0721265721ec80d094235565ef3be42a30b4746f00102d83a2638a6a666ac86303729637d7c976e278d094427709734771977349443a4fa6

  • SSDEEP

    6144:zMJOWK4l0wqOVq1gJTKeknYuASD7xJqinjExS:z2OWK4llSnbxAinQU

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 14 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 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\374ccf84208a769f243210025cd6060afd66b900d8c3a66c4edfdbdbbef88963N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4016
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\374ccf84208a769f243210025cd6060afd66b900d8c3a66c4edfdbdbbef88963N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4292
      • 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:1148
        • 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:460
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4772
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4772 -s 204
                6⤵
                • Program crash
                PID:3812
            • 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:3040
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3040 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4172
            • 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:2896
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2896 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:5064
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4772 -ip 4772
      1⤵
        PID:3400

      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

        e5e877bcc2542ab8629d8f34bafcd7f4

        SHA1

        8f618efa1584268e9eafd2b01c2a2ac006113c01

        SHA256

        5e63bcec102963b96b1f7d08ec512431a0ba748f90134dc51a05046296541e9e

        SHA512

        79153f941ae2cc4a5649ac729f03dd3f98df24d5084e36d14467b2a859e6d63fc4167feac24e7b519a9e179fb243447fe6d09519169b11e3151d5cc467e4c9d4

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

        Filesize

        404B

        MD5

        cdc0ba3851b0d3e5ab915fc4cc5573ae

        SHA1

        fac4524a4577d116089aa0b2887927a2d2bc2b2c

        SHA256

        87c229a4cbdf399f4645e227771e55d4fb4ac8a95b654b84512663fa0186349c

        SHA512

        3a7013d39bf635607da1105e1c16e1709ce546c8c96097ee04b480aacaf1e28f6639e017394571c20a829ca9a15f03fd50bda250eccae66eb7d90580cc8da1cc

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

        Filesize

        404B

        MD5

        3f2c76e5754deaedc37525808f6eba3f

        SHA1

        486802bbe96b65d1fabf5ba9735fd1893ceccb41

        SHA256

        3c1e6735e9d52553bf339f58fb5b873c4d43ec3be04be91a4f70b70942421f96

        SHA512

        89ed29adfcd621f7f6b7bff4f1c553c14b3623d017159ebe316b0fc85bc265aa11a5dfc9b8f40875b0d712caf57ee7d5631e856a175be095819ff949cb6fa31a

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{189BA042-C73E-11EF-BEF1-7ECF469E42CC}.dat

        Filesize

        3KB

        MD5

        a4b95ea8084664cd9d18a3be8dea1285

        SHA1

        169a1363262f136621f5aa48482837e99185b405

        SHA256

        14da1637e6ea6ed15d99cc196630f71805cf944cbdf92ed19beaadf815ad3821

        SHA512

        468086f0fed2d2496dd5917e9ef347ecc4cd1d4f30835b2ddc6457cf9d68817d167e1149c312fc90437524cd9c7ee303e9c86d94d849983e26f1d434cd85f69b

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{18A064FE-C73E-11EF-BEF1-7ECF469E42CC}.dat

        Filesize

        5KB

        MD5

        ea6af4ad554a31b26b6802d24fdf2b1d

        SHA1

        a738fdcf7f0762999e6b0199921e8e7f950eb088

        SHA256

        830fb46efd2d4a420c964368e3ff0c3237cfeb600fcf452bc60e1e783a14269b

        SHA512

        d6d46eed511c8b1421957f9bdda0b3936c0f0a34e1c38c20c6dd180babdd0f14e032ea97f16410e2ab450d16e264b019155e94f1611147b671a51b76e0be2c9b

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verE60A.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0GUUC90F\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        236KB

        MD5

        1c5dc181a94377a493f0e0ab7a74be5c

        SHA1

        61902a1bb92ab25b69219c8e49a24f2e2067e7fe

        SHA256

        a4a9bebd22ec3c18d3a6f4b8c72523aa1a9a377a7779e274156b0772b38ecb49

        SHA512

        c4e746fea55b7a1332e82668fc415cb6b0856542871ad2d1bf47fd3c76abff6ad10a0300c3705e61ed4e4c401aef29b04d66fa18d6208f6a715c688cd936df14

      • memory/460-31-0x0000000076F92000-0x0000000076F93000-memory.dmp

        Filesize

        4KB

      • memory/460-42-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/460-39-0x0000000076F92000-0x0000000076F93000-memory.dmp

        Filesize

        4KB

      • memory/460-21-0x0000000000400000-0x0000000000433000-memory.dmp

        Filesize

        204KB

      • memory/460-44-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/460-30-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/460-29-0x0000000000430000-0x0000000000431000-memory.dmp

        Filesize

        4KB

      • memory/460-28-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/460-35-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/460-38-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/460-37-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/460-36-0x0000000000400000-0x0000000000433000-memory.dmp

        Filesize

        204KB

      • memory/1148-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1148-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1148-16-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1148-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1148-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1148-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1148-11-0x00000000001C0000-0x00000000001C1000-memory.dmp

        Filesize

        4KB

      • memory/1148-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1148-5-0x0000000000400000-0x0000000000433000-memory.dmp

        Filesize

        204KB

      • memory/4292-0-0x0000000010000000-0x0000000010065000-memory.dmp

        Filesize

        404KB

      • memory/4772-33-0x0000000000800000-0x0000000000801000-memory.dmp

        Filesize

        4KB

      • memory/4772-34-0x00000000005E0000-0x00000000005E1000-memory.dmp

        Filesize

        4KB