Analysis

  • max time kernel
    94s
  • 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
    16-12-2024 05:07

General

  • Target

    51513bbb6bf59812e0ac3421caf8ebfdeb8d5cf56c7bff6d0865c36f91f98b0dN.exe

  • Size

    1.2MB

  • MD5

    ccb2b1c946c9455700f40cd46a4f1820

  • SHA1

    3d86b523cfb5892f2821313526c14a9b486c840a

  • SHA256

    51513bbb6bf59812e0ac3421caf8ebfdeb8d5cf56c7bff6d0865c36f91f98b0d

  • SHA512

    bf18716bb5948b04f35ad3800edc3e63ed2a17c1eeabfa199ef2d38e3eeed2549b8b94554a02660b8c08d61bbf786c982fe1be09135be8487c02be5492a07fbc

  • SSDEEP

    12288:EqOPajQUXXP8QvLWFx6Mo5rippDC7ee1hpls4Ey+YdHUCR:EnajQEPnvg6PhWDC750sJR

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • UPX packed file 13 IoCs

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

  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • 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 50 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\51513bbb6bf59812e0ac3421caf8ebfdeb8d5cf56c7bff6d0865c36f91f98b0dN.exe
    "C:\Users\Admin\AppData\Local\Temp\51513bbb6bf59812e0ac3421caf8ebfdeb8d5cf56c7bff6d0865c36f91f98b0dN.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2600
    • C:\Users\Admin\AppData\Local\Temp\51513bbb6bf59812e0ac3421caf8ebfdeb8d5cf56c7bff6d0865c36f91f98b0dNmgr.exe
      C:\Users\Admin\AppData\Local\Temp\51513bbb6bf59812e0ac3421caf8ebfdeb8d5cf56c7bff6d0865c36f91f98b0dNmgr.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1556
      • C:\Program Files (x86)\Microsoft\WaterMark.exe
        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
        3⤵
        • 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:1844
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
            PID:1808
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 1808 -s 204
              5⤵
              • Program crash
              PID:5100
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:2812
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2812 CREDAT:17410 /prefetch:2
              5⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:5052
          • C:\Program Files\Internet Explorer\iexplore.exe
            "C:\Program Files\Internet Explorer\iexplore.exe"
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of SetWindowsHookEx
            • Suspicious use of WriteProcessMemory
            PID:1340
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1340 CREDAT:17410 /prefetch:2
              5⤵
              • System Location Discovery: System Language Discovery
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:3800
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 2600 -s 1488
        2⤵
        • Program crash
        PID:2716
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1808 -ip 1808
      1⤵
        PID:1296
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 2600 -ip 2600
        1⤵
          PID:2148

        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

          cda3a1245093d86501ad9761f10320fa

          SHA1

          9ff6b95b0a72732f8afbd9504fa640bec134b498

          SHA256

          eb60e5aa4327f06e072f6b97c6a52532aa55d5a5dc53e1d48ecced85da6214dc

          SHA512

          51abd474d484588dd1cdc5580cf28d6a5d0481a4488f1f5b8a491c4f30ecaf5ba8cffa9c9ac696358d6725c6e290e8d28d2e3984d3d55f0ae496a65bc4142a1d

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

          Filesize

          404B

          MD5

          94e07c67ca7a34500c1870be2b9385a6

          SHA1

          a862376f26e5cbc33ad9695c8bfe76221b8bca79

          SHA256

          501fe06924574fda898d61e1fcce0329f189459f33060ce21e0e3613cf3e447f

          SHA512

          2cb6e1894e25ed1f6c1619618ed8b79c71237f0cc1e4660f095212b9c272dfb41084ffcf2c18282b1c31f7be5e4987747fcf747512fba2dfbc42ce2f596c8a7e

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

          Filesize

          404B

          MD5

          c85d8631e07430eb9dc15354bf47bef1

          SHA1

          bbdd4f34831176ba2c82db030344ef87f6fcc763

          SHA256

          2e6121782006b80c3d593d01019c8ccaf5003732140890c67fc06e9704506378

          SHA512

          a472f0136a1a303f696623fbc016a5884bcf4829019ed4c99d41beeeb9b22a87ab7bf5a781bc523b3e0c9dd7163e853122154cb753bffd9a6717d542131716f7

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{B2B0E264-BB6B-11EF-BEF1-6AACA39217E0}.dat

          Filesize

          5KB

          MD5

          27cf1dce7c5759dd5eb5ed3fc946d2d3

          SHA1

          85e46ee270d6bbb7a711b746b2ba1d51ac17f914

          SHA256

          f2b216484ced675dc1f2b6bc4da2b54c874eb36d661115ce84b7e1880c2963ef

          SHA512

          08c12dc09a3eea1be0166475f353907e86a0d91e067237deaa92b61c679761fd8c92503aedb935a9b6dac9a27be549fa713add0b0987e5b672ffe6aac0eb059e

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{B2B5A6BA-BB6B-11EF-BEF1-6AACA39217E0}.dat

          Filesize

          3KB

          MD5

          dfc94bb083696b558d8abb293d70d902

          SHA1

          544d0fff282a91568765a0e4a2ebbf51b9085114

          SHA256

          da0eed6362057e95fe33aba4edc08d3abc72b5bd8ed2113e4466dda56c46732a

          SHA512

          fff1ecb1b1d00feb22e2920f16d7e7574cd7016235ce5181f241d2e7ffaed398fdf5eb70c6a7fa3b008f257e8b53676c0f78155299dbf905a0709106265707f2

        • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verE53.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:\Users\Admin\AppData\Local\Temp\51513bbb6bf59812e0ac3421caf8ebfdeb8d5cf56c7bff6d0865c36f91f98b0dNmgr.exe

          Filesize

          112KB

          MD5

          c6edf04d9d8c1cc5a2dfb91434296eef

          SHA1

          bc485e5bdc8c881108a82706d20b6d66c610efd5

          SHA256

          6b1ef9cdf84789ecf8dd416fb4ac61b4edd879d74c21c20bc33f5576f8ba651e

          SHA512

          80091213469acf96c8a7cf65fa9d4b76a9f23fee8ce53588bf8dd3ef36b2df8c7bbdfe0b238f9313bd7a302e85bce403076e31f1fd34e6906b182f207ca0ddf1

        • memory/1556-9-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1556-6-0x0000000000401000-0x0000000000404000-memory.dmp

          Filesize

          12KB

        • memory/1556-12-0x0000000000910000-0x0000000000911000-memory.dmp

          Filesize

          4KB

        • memory/1556-16-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1556-31-0x0000000000401000-0x0000000000404000-memory.dmp

          Filesize

          12KB

        • memory/1556-14-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1556-5-0x0000000000400000-0x0000000000496000-memory.dmp

          Filesize

          600KB

        • memory/1556-7-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1556-15-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1556-11-0x0000000000400000-0x0000000000496000-memory.dmp

          Filesize

          600KB

        • memory/1556-10-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1556-8-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1808-35-0x0000000000A80000-0x0000000000A81000-memory.dmp

          Filesize

          4KB

        • memory/1808-36-0x0000000000A60000-0x0000000000A61000-memory.dmp

          Filesize

          4KB

        • memory/1844-33-0x0000000077182000-0x0000000077183000-memory.dmp

          Filesize

          4KB

        • memory/1844-41-0x0000000077182000-0x0000000077183000-memory.dmp

          Filesize

          4KB

        • memory/1844-40-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1844-39-0x0000000000400000-0x0000000000496000-memory.dmp

          Filesize

          600KB

        • memory/1844-38-0x0000000000070000-0x0000000000071000-memory.dmp

          Filesize

          4KB

        • memory/1844-44-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1844-45-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1844-29-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1844-30-0x0000000000060000-0x0000000000061000-memory.dmp

          Filesize

          4KB

        • memory/1844-32-0x0000000000400000-0x0000000000421000-memory.dmp

          Filesize

          132KB

        • memory/1844-26-0x0000000000400000-0x0000000000496000-memory.dmp

          Filesize

          600KB

        • memory/2600-37-0x0000000000400000-0x000000000053B000-memory.dmp

          Filesize

          1.2MB

        • memory/2600-0-0x0000000000400000-0x000000000053B000-memory.dmp

          Filesize

          1.2MB