Analysis

  • max time kernel
    135s
  • max time network
    151s
  • 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 03:36

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 14 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 46 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\d540c15e87f5ef91de29ed9d6c3c830ec610873d9c7fb874777d62f554178c62.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3836
    • 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:4116
      • 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:1580
        • 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:3948
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3108
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3108 -s 204
                6⤵
                • Program crash
                PID:1544
            • 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:2976
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2976 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:376
            • 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:4556
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4556 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1316
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 4116 -s 608
          3⤵
          • Program crash
          PID:2740
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4116 -ip 4116
      1⤵
        PID:908
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 3108 -ip 3108
        1⤵
          PID:4692

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{912EA13A-934B-11EF-BEF1-DA67B56E6C1B}.dat

          Filesize

          3KB

          MD5

          cc617410ca54290771168cb4fce757ea

          SHA1

          1dfc0973b57de10e8bb9150afa2ff62cf7f13fb9

          SHA256

          67b1864759e49acb64398e6b2e5bdb5d223d94e2f3c94e9c18c9a05b957a30c5

          SHA512

          770a7035712099ec62556b199ba48b656436c358771023447ec42b1178b5f86f1f994d33208faf9c2c9e8345948de0d50607177b7a2f7130994b919ffed8eda0

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{913103D0-934B-11EF-BEF1-DA67B56E6C1B}.dat

          Filesize

          5KB

          MD5

          4fbc308c9926e870fe9e5b568db95d29

          SHA1

          7980f4d97eea0a0af9ac70867b127d1b8a2dc9e5

          SHA256

          638a54171a6c358713d763cac0052cd3f330244f19464c5a239595367032b62d

          SHA512

          6e8c74068ae9a8289a90bc8886f3e9b0f880c937ae7ea112ede960e0bfc726b852d1613e7dc63917e7ba7dfcea116576d282ca53a67417d4e446508429cd1af1

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver2334.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

          293KB

          MD5

          b913d0bea98b4e215fc9c9c0fb4bd351

          SHA1

          bc6a89a2895bff53c0e80ef390ffaf022e38dc86

          SHA256

          9621bb5921c596eb5246df3b5d59d3be598b4ef2d92dbf19a25c8f66cee9f2f9

          SHA512

          3739ab8eeeea6d3759fa519e0c095b357e7044551a0e743cbf63b70e991bd9c52d4c6bd322cb6126d014ac85e07b081ef57591935b3225c9a30db0f3866f275b

        • memory/1580-13-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1580-7-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1580-11-0x0000000002C80000-0x0000000002C81000-memory.dmp

          Filesize

          4KB

        • memory/1580-10-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1580-8-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1580-12-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1580-16-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1580-14-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1580-5-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/1580-6-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3108-34-0x0000000000B00000-0x0000000000B01000-memory.dmp

          Filesize

          4KB

        • memory/3108-33-0x0000000000B20000-0x0000000000B21000-memory.dmp

          Filesize

          4KB

        • memory/3948-40-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3948-36-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/3948-38-0x00000000774D2000-0x00000000774D3000-memory.dmp

          Filesize

          4KB

        • memory/3948-39-0x0000000000070000-0x0000000000071000-memory.dmp

          Filesize

          4KB

        • memory/3948-37-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3948-29-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3948-21-0x0000000000400000-0x0000000000454000-memory.dmp

          Filesize

          336KB

        • memory/3948-42-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3948-44-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/3948-30-0x0000000000430000-0x0000000000431000-memory.dmp

          Filesize

          4KB

        • memory/3948-32-0x00000000774D2000-0x00000000774D3000-memory.dmp

          Filesize

          4KB

        • memory/4116-35-0x0000000010000000-0x00000000100E2000-memory.dmp

          Filesize

          904KB

        • memory/4116-1-0x0000000010000000-0x00000000100E2000-memory.dmp

          Filesize

          904KB