Analysis

  • max time kernel
    92s
  • 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
    01/01/2025, 13:45

General

  • Target

    a62396c5b2664d2a9a0bb6fe18e15b282353fb6336bc198699757016ffc6a27c.dll

  • Size

    558KB

  • MD5

    1f7c50d32d596204a81db9ea35dde332

  • SHA1

    8b03955ef7cb83fe583938ca80fca2c406c0dd7e

  • SHA256

    a62396c5b2664d2a9a0bb6fe18e15b282353fb6336bc198699757016ffc6a27c

  • SHA512

    5ac8039dcb992a1d97721b640795d9baf086d0e50b3c85bf99378d6a2f93d7090f28ce5bccf09f5e51427b94cc75d33550d972af90e35b30bb00551e4137c9dc

  • SSDEEP

    12288:zh8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNzfld1B:z8F+Pzr/Hfp4MIYwZckMQmzfZB

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 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 50 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\a62396c5b2664d2a9a0bb6fe18e15b282353fb6336bc198699757016ffc6a27c.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4988
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a62396c5b2664d2a9a0bb6fe18e15b282353fb6336bc198699757016ffc6a27c.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4920
      • 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:2984
        • 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:4812
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:392
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 392 -s 204
                6⤵
                • Program crash
                PID:4488
            • 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:1416
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1416 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2704
            • 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:1836
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1836 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:320
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 392 -ip 392
      1⤵
        PID:4116

      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

        30f59b20e935520badc298242cb4cff1

        SHA1

        00622b2054eb148a8459c2ccd0b22606c2d5c7f6

        SHA256

        4a981d199e551f2b8c8fa22f0e3fbc264e876e5ed243d83331b2a6083a753e3c

        SHA512

        f22ca09eb3266cee3f363e4f3f955745382679d136d61e7c27f81081cd77efa5f82f82220526928f73049e692b7c060f64032dfae0f967c579c6e6acfd2e8d21

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

        Filesize

        404B

        MD5

        703b342ee11a2e4336dcc70f90e1a37b

        SHA1

        cf10a2b83de9f27ba3fc808d3764d7917e6c30bc

        SHA256

        6b16ec88033c74344a4dd3a52baf2be19ce1d17e209eb3353a200ee5e7f28a0e

        SHA512

        3e1912b84eba431ff23a76520e994e9ba1fa0dadcde57b0fee99310aedecfdbd2ef212770438eb40ce65adec9a8b88e8320a8b9a6499eb326025acba6c0eef21

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

        Filesize

        404B

        MD5

        715d6b4a7a51ce981242e9bc651e209e

        SHA1

        57610f3c46ed8d7116091bee8b4102d0ac6dcb82

        SHA256

        27a38c00d9dca0bb2568bdf325b75fd339842e0b78ff97a8367fe39c0a3be2e8

        SHA512

        e31583e8f2bf8d85fc357c45d07dde6f57c08f19fc5761d1ed0790b9d7a99c50c7491c70f8e5196aacbc5da91e543c7737471edcb08b4164bb1ff9fa1d32ff6f

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{A063DE40-C846-11EF-ADF2-FE5A08828E79}.dat

        Filesize

        5KB

        MD5

        4df409953c8d041c096b8ffae8398267

        SHA1

        04cab063a0e061cb76c59a18e1ee306d4bf0ebbf

        SHA256

        1d85965934edb26bd7857dddddcfb7ef639205d6932bcbf4cf0ceb1c383e1019

        SHA512

        84fb2a170148ddcdfe93317657351553b55c87e90b6524615008d48b32106aced636d78c1cf8207118f8d14f308c324dbc00f8f8cc4834f494979a90513e2db5

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{A066403D-C846-11EF-ADF2-FE5A08828E79}.dat

        Filesize

        3KB

        MD5

        8a888a1b39bc01c5b1774c0186b70992

        SHA1

        3413f7b33b8c4d76c6a54f3cb5d6553bb199f883

        SHA256

        368c24db13238a4c89791c19951f4cd8559896ab2d12e6ea2efded55f6e83c5f

        SHA512

        5ec64a9a5b564d1570295238a9ea3ac6d3244fb56d129a958953bfc8f40846a9ed3c690ac804b31d9a4da11bb304a62941bf523ede3e78a838981384d6f50a37

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver36F9.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        123KB

        MD5

        2cc65cb5dea68dcb6aefbce0d78a3fa3

        SHA1

        f05fd2ad722e4feb9f90fec42081b00acd5b3810

        SHA256

        a461da98eb645a7df5450ef0ac644674d32a557ce94b2529bc3fd8b896143ef3

        SHA512

        e67951b2dbad43c143e6a7f9058dccbba669913804ed8c74720a5694edd1e2a3021c98affa68b0565b2a266ec5132b531d79eeb41989bc1c418d5bb8842b7db5

      • memory/392-38-0x0000000000DD0000-0x0000000000DD1000-memory.dmp

        Filesize

        4KB

      • memory/392-37-0x0000000000DF0000-0x0000000000DF1000-memory.dmp

        Filesize

        4KB

      • memory/2984-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2984-6-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/2984-12-0x00000000008D0000-0x00000000008D1000-memory.dmp

        Filesize

        4KB

      • memory/2984-5-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/2984-21-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/2984-11-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/2984-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2984-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2984-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2984-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2984-17-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2984-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4812-39-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/4812-40-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/4812-41-0x0000000077EB2000-0x0000000077EB3000-memory.dmp

        Filesize

        4KB

      • memory/4812-42-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4812-34-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/4812-33-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4812-45-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4812-31-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4812-32-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4812-24-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/4812-23-0x0000000000400000-0x0000000000441000-memory.dmp

        Filesize

        260KB

      • memory/4812-35-0x0000000077EB2000-0x0000000077EB3000-memory.dmp

        Filesize

        4KB

      • memory/4920-0-0x0000000010000000-0x0000000010091000-memory.dmp

        Filesize

        580KB