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
    11-12-2024 03:52

General

  • Target

    1857c1dd7942a15d31b1d9b8eaa72749f296221402aa659bab6a1b48e37f4122N.dll

  • Size

    500KB

  • MD5

    d274670f913543a1596c9ca564938ff0

  • SHA1

    67e4bcf0912dea8125833f7aba776fba90d4186e

  • SHA256

    1857c1dd7942a15d31b1d9b8eaa72749f296221402aa659bab6a1b48e37f4122

  • SHA512

    8a384d715b7afb48be50ffa1cc4ea833417f051702515757b8cd8e945785ef1a5f919b3dc789da84f7ea740ee3127f87c189989959ef82f0f38ba6bf2c8ef58c

  • SSDEEP

    12288:Ph8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNoMlYXN:P8F+Pzr/Hfp4MIYwZckMQmblsN

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 6 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 51 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 WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\1857c1dd7942a15d31b1d9b8eaa72749f296221402aa659bab6a1b48e37f4122N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\1857c1dd7942a15d31b1d9b8eaa72749f296221402aa659bab6a1b48e37f4122N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2216
      • 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 WriteProcessMemory
        PID:1968
        • 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 WriteProcessMemory
          PID:1668
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4092
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4092 -s 204
                6⤵
                • Program crash
                PID:3744
            • 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:2156
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2156 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:3996
            • 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:5088
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5088 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4440
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4092 -ip 4092
      1⤵
        PID:2184

      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

        768a65780153348d63f5240beda6b47d

        SHA1

        126c45eff6c99d637d7b1bde83667d9e5f59cf06

        SHA256

        bdf16b98772c2d7746363f3f6e1577d1f5b44a649489caeff0c705377c9ccc36

        SHA512

        6f961e759dce67d8738dcfe49aac5ba7bdbd2240fa8c26ea464b95b86e775691736e6ec07135a560ac8fc9ca9bff962893cda64db029d8c11179ec36a7c16039

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{4F94E742-B773-11EF-A7EA-D6A59BC41F9D}.dat

        Filesize

        5KB

        MD5

        29b450c2202710e434d8a5e1d31a3717

        SHA1

        28531abadabafccea40c88aba36d7968f19cf2c0

        SHA256

        846eb153a2e60787949bec4a72520cd303f4e8269c323559d0a3875c8cdf88d1

        SHA512

        318adb9b85635467393e33faff4ac7daa5771ed925732dad3cb5c4313ba6332a456462ddef4d7a1d32c52be53940ca5c06e1b60c7b92264f84050e35bf88bc40

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{4F99AB3A-B773-11EF-A7EA-D6A59BC41F9D}.dat

        Filesize

        3KB

        MD5

        06c79bda2dff601f1d73b9e54ffb8a1e

        SHA1

        748cae9de4c7fe5b9420dd3574b05b698f4eaddc

        SHA256

        e1b1cddf45d99463da89489fbeb0a3c04b0ca674d268b4ead169f77a628aa53d

        SHA512

        60a1e6cfddc9488c44e7270c414eb957486a7ff73bab1b4939d31de128713842c160af8b99ba293ca0b93288c577d25ad16b410641fa7bd61ee13adcb3efe00c

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver1151.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VKYZDMA5\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        65KB

        MD5

        a9ea94ee4a3bb43d4057823b2072dc54

        SHA1

        94ade3c34ec08613daba8a1240586c24f8169794

        SHA256

        7edbb67a880d90e53ec7949c4907f4ccf5596899b98ed8651b01a485a7b06789

        SHA512

        0ae24a452c474a0b67eb17ceb78eabc46aad7f04a249d526cbd1bf25ccc94016133ee6cdd1cf342fa3c8dbff60372d18df56137a6c0303bbaee07f005f930ab5

      • memory/1668-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1668-16-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1668-26-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1668-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1668-21-0x00000000005E0000-0x00000000005E1000-memory.dmp

        Filesize

        4KB

      • memory/1668-20-0x0000000076FD2000-0x0000000076FD3000-memory.dmp

        Filesize

        4KB

      • memory/1668-22-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1668-15-0x00000000005D0000-0x00000000005D1000-memory.dmp

        Filesize

        4KB

      • memory/1968-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1968-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1968-5-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2216-0-0x0000000010000000-0x0000000010082000-memory.dmp

        Filesize

        520KB

      • memory/4092-18-0x00000000012A0000-0x00000000012A1000-memory.dmp

        Filesize

        4KB

      • memory/4092-19-0x0000000001280000-0x0000000001281000-memory.dmp

        Filesize

        4KB