Analysis

  • max time kernel
    94s
  • max time network
    116s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-12-2024 01:31

General

  • Target

    6a943da45561b89e7a60cdcea899249b13c35ab202648b15500a0ec236a66b32N.dll

  • Size

    184KB

  • MD5

    a4df67495a3e8a90b8626f38c0b95320

  • SHA1

    3d97b8da469fc943f3ce07a4630e9fb110192b53

  • SHA256

    6a943da45561b89e7a60cdcea899249b13c35ab202648b15500a0ec236a66b32

  • SHA512

    db6386f2fef84785a46706eabebb5bd2b1b89d62f72551ebf8318ca74bd9320ef78d955e93af21e54411986bed41b0f1293db649b92c26fea636b7cca8ba94e3

  • SSDEEP

    3072:jn4cV8gf2u41Z5tKlw+riClf+gfjxbfkhbN:L4y8gOl2zrhlf++xYhh

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 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\6a943da45561b89e7a60cdcea899249b13c35ab202648b15500a0ec236a66b32N.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4616
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6a943da45561b89e7a60cdcea899249b13c35ab202648b15500a0ec236a66b32N.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:5068
      • 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:2228
        • 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:1164
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:4316
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4316 -s 204
                6⤵
                • Program crash
                PID:4008
            • 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:1604
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1604 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1156
            • 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:3428
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3428 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2600
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4316 -ip 4316
      1⤵
        PID:2444

      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

        4eaf9b3a48166fb8e172b3a7f24579ff

        SHA1

        0f45af7ebcfc4e2a6fb9c6eded199411ef8de0ae

        SHA256

        6df30e165ee411a067f02df7637526554b5f4d69dc970f0d67d2ad5b78974d1b

        SHA512

        883f4c7db6a115cbe2c2618d882bb3731b60c5c8012f851beb73985703244e17b9e401c987fcfcd5fbc1f8c187a106ccc438004cdc2f0d0e0d745f9db0d2d338

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

        Filesize

        404B

        MD5

        09dce16672f416fc1a45a7bf213a5ced

        SHA1

        be10a7f7267410df8217e0198a50b61b3a1f4c47

        SHA256

        fec7c4e299d8d4be06f29cb39ffacf7e8ec80f64857892921bafbd1a522f7f52

        SHA512

        b76882b01d1897d2d1b3309f66b9cf7c037ac98baa38c3d614514c564dc9f150d354f2067732c69aa822878472d03364671acc3aeb708d0ba2665f03305369ea

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{76C3BF8F-C004-11EF-B319-FA89EA07D49F}.dat

        Filesize

        3KB

        MD5

        2fa5082868af38103227aaa949050dfd

        SHA1

        761625e610b9482781e7f90889816074ad70c6b0

        SHA256

        796db7e4c294f03331ea5dd110c45b799bd465fff1f0c93d517024d55a82515d

        SHA512

        b3143bb55d90be1bb1cf561be5ad20b947f5ef8484430ae76f269bb5235b4eb9c8e957bf76edddc7ef1df7829d9bec5d25827cf957958c129c6648607698a77f

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{76C62392-C004-11EF-B319-FA89EA07D49F}.dat

        Filesize

        5KB

        MD5

        579e6fa5a0e71d4438f943bd8e18e0ba

        SHA1

        2a99df847bb1e619ff36a45e76892e6a6ee57820

        SHA256

        28e8e844116b018ac3844bf3ed96730844b9cf7db6547c75ccada791ddf24feb

        SHA512

        cba9fbb06e0febcb54f64533c5c37ad96e610101fd3329266a0f74d15e8dfbce54bc0baee3a3b21f4922317a58a7a4ca8f138e070936f1088e3b63bfad9a4d1e

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver162.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        92KB

        MD5

        dace075bf1731bb90fc56f559f9e864f

        SHA1

        2147f6b576b71bba1f1c1117f86ecb123e941bab

        SHA256

        bc2ed6ce2caca16e2d4f77e2f59608fa901993a87a419e8066cda64eae8b9e8d

        SHA512

        f28c6c90c8ea26f8af6a62963249f4c420605040d2048db0b516dcd10f196173ea9dfbc8ab595db5241e0f3c4f57e9db690eb57abd4d795278f748651a01d0cf

      • memory/1164-25-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/1164-29-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1164-32-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1164-42-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1164-28-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1164-31-0x0000000077702000-0x0000000077703000-memory.dmp

        Filesize

        4KB

      • memory/1164-30-0x00000000029B0000-0x00000000029B1000-memory.dmp

        Filesize

        4KB

      • memory/1164-39-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1164-36-0x0000000077702000-0x0000000077703000-memory.dmp

        Filesize

        4KB

      • memory/1164-38-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1164-37-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/2228-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2228-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2228-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2228-11-0x0000000002C50000-0x0000000002C51000-memory.dmp

        Filesize

        4KB

      • memory/2228-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2228-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2228-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2228-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2228-4-0x0000000000400000-0x0000000000429000-memory.dmp

        Filesize

        164KB

      • memory/4316-34-0x0000000000EE0000-0x0000000000EE1000-memory.dmp

        Filesize

        4KB

      • memory/4316-35-0x0000000000EC0000-0x0000000000EC1000-memory.dmp

        Filesize

        4KB

      • memory/5068-0-0x0000000010000000-0x000000001002F000-memory.dmp

        Filesize

        188KB