Analysis

  • max time kernel
    137s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-10-2024 03:33

General

  • Target

    d540c15e87f5ef91de29ed9d6c3c830ec610873d9c7fb874777d62f554178c62.dll

  • Size

    879KB

  • MD5

    a8f7c07bb05fa504247aaeb462c441b3

  • SHA1

    3c43fc52e5781e85b58092fe48959ffb24e019d2

  • SHA256

    d540c15e87f5ef91de29ed9d6c3c830ec610873d9c7fb874777d62f554178c62

  • SHA512

    b966f4f6f4a617e9f9ca9595b076ed104861f40cb42da813f1ad2cd8c5c018821dafecda8f9ad80e1fd711edf42905c45926d8bc8cc541a6071fb4f1c986b2c8

  • SSDEEP

    12288:UNIyZN4+Wv4PLq6Okrh9ZN/hs9Dsdt+SrQtw7:U9TPmirh9Zdh6vS6q

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 13 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 4 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 31 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\d540c15e87f5ef91de29ed9d6c3c830ec610873d9c7fb874777d62f554178c62.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1896
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\d540c15e87f5ef91de29ed9d6c3c830ec610873d9c7fb874777d62f554178c62.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4888
      • 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:2500
        • 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:1040
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3620
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3620 -s 204
                6⤵
                • Program crash
                PID:4064
            • 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:1012
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1012 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2248
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              PID:2740
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4888 -s 608
          3⤵
          • Program crash
          PID:4952
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4888 -ip 4888
      1⤵
        PID:4856
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3620 -ip 3620
        1⤵
          PID:5032

        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

          b51a34b2a0f62df2579b658491034a47

          SHA1

          201b665bf031e09ab3ee4f8839725cee151921da

          SHA256

          48994f82409a33bdb76107cc373fd893a89d61d61f668b0222eb440837c2c0e8

          SHA512

          fe8b9dc3d4cc09282dfc64a284ebab6e10f40c0d5ba7dcb551531b8e1fddb09763f94dc009352480aa64d991a6db1a8766eed16d98867eb01ee940bf983ccfde

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

          Filesize

          404B

          MD5

          bb1684fda35d7a1239a7a80c58a1d53f

          SHA1

          ab09ad3798314eab972657feb0c04e1410c28874

          SHA256

          d0701f4174731a6cd1cb0a212ad650b3368b6297afa02b42f3d187ebefa6701f

          SHA512

          81e8a0a60b5d9c2612f58549cd008bd5f7af3ca5e3b55a6f7be04a6b1a1608d4e391cf09967dd38bdf343de59b73550e6f7199e21669288d6a646c332d3fb44c

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\DomainSuggestions\en-US.1

          Filesize

          17KB

          MD5

          5a34cb996293fde2cb7a4ac89587393a

          SHA1

          3c96c993500690d1a77873cd62bc639b3a10653f

          SHA256

          c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

          SHA512

          e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

        • C:\Windows\SysWOW64\rundll32mgr.exe

          Filesize

          293KB

          MD5

          b913d0bea98b4e215fc9c9c0fb4bd351

          SHA1

          bc6a89a2895bff53c0e80ef390ffaf022e38dc86

          SHA256

          9621bb5921c596eb5246df3b5d59d3be598b4ef2d92dbf19a25c8f66cee9f2f9

          SHA512

          3739ab8eeeea6d3759fa519e0c095b357e7044551a0e743cbf63b70e991bd9c52d4c6bd322cb6126d014ac85e07b081ef57591935b3225c9a30db0f3866f275b

        • memory/1040-36-0x00000000001F0000-0x00000000001F1000-memory.dmp

          Filesize

          4KB

        • memory/1040-31-0x0000000077A82000-0x0000000077A83000-memory.dmp

          Filesize

          4KB

        • memory/1040-41-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1040-40-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1040-39-0x0000000077A82000-0x0000000077A83000-memory.dmp

          Filesize

          4KB

        • memory/1040-37-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1040-38-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1040-26-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/1040-29-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1040-30-0x00000000001E0000-0x00000000001E1000-memory.dmp

          Filesize

          4KB

        • memory/2500-8-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2500-4-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/2500-12-0x00000000008E0000-0x00000000008E1000-memory.dmp

          Filesize

          4KB

        • memory/2500-11-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2500-13-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2500-15-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2500-14-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2500-7-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/2500-6-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3620-34-0x0000000000F80000-0x0000000000F81000-memory.dmp

          Filesize

          4KB

        • memory/3620-33-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

          Filesize

          4KB

        • memory/4888-35-0x0000000010000000-0x00000000100E2000-memory.dmp

          Filesize

          904KB

        • memory/4888-2-0x0000000010000000-0x00000000100E2000-memory.dmp

          Filesize

          904KB