Analysis

  • max time kernel
    94s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-12-2024 07:01

General

  • Target

    e2af923eb604287686987c977bd5b7d85354377ca74c5a002206b647e0738143.dll

  • Size

    188KB

  • MD5

    2828a5c5917e4e8b36da55dc303ab752

  • SHA1

    983ae161d008475fc2d1510bd2ce75e5ad6e9ed5

  • SHA256

    e2af923eb604287686987c977bd5b7d85354377ca74c5a002206b647e0738143

  • SHA512

    cbde1292d66936ad79b89893343417828e45943c22eb04a595dc7c467ca563cb3e4f2f1084cff23b79c9b23c2dd548bab9ab3b8856acc59024e1aacee83c1bc0

  • SSDEEP

    3072:wkk/wxp+etRwew56OxxejSGuBoBp2QzrZHBMtYsIrfy9Qm:zDHA6dj1BrZHutWrfE

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 11 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 51 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\e2af923eb604287686987c977bd5b7d85354377ca74c5a002206b647e0738143.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3016
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\e2af923eb604287686987c977bd5b7d85354377ca74c5a002206b647e0738143.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3292
      • 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:4804
        • 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:728
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:2032
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2032 -s 204
                6⤵
                • Program crash
                PID:3468
            • 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:3548
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3548 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:4372
            • 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:2764
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2764 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2492
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2032 -ip 2032
      1⤵
        PID:4040

      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

        641fd00a680e2a2b7c46da9f49d4ac01

        SHA1

        91342c03f46164a5ffba758b6201387912e09026

        SHA256

        69b70d73aed768e709b4e26268d4bfbb349d3ed2d7fc7bba042a347b29f1062d

        SHA512

        004e47e9e0623bf782ad71418257088902bec47d213027287c46393d7a413d69a69fd213df1781d3c49ddde689943d5c5f3ff844fb9cc81c7eeaf331b8a4344f

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

        Filesize

        404B

        MD5

        1277ba2547c3cc06c66a4c4008995d59

        SHA1

        f33c86a06a7b06d76a0fd5235585cb49b927bcb9

        SHA256

        ef20467292a518231db1710f86871b51f1714c14aef06d033d0d2a4b5a18bc38

        SHA512

        85a0940c936c9e860bb6777d41f63a66928ea795ce2bd3261c0535a48798a1e691f5f02de07caa10a9c4d1d6dfac49f50826bf177ef280e711161211eb34434d

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

        Filesize

        404B

        MD5

        06ed603df28625c8b860a6049cd76a8a

        SHA1

        db51259184b2a8800c5951cda61208186d4416e7

        SHA256

        4ddff600ee2bd94c7797bead0817c3697bf315cbd6f37b5d2fc77d60d193795c

        SHA512

        317835a452e5d730187956a0d444db64d3438327f392e6cec023ec9c646ccdf24ac4860d67a6c0f81c2faae13285dc7318004ff662d1681b3721a2b4ed600119

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{EBA06E20-BD0D-11EF-A7EA-FA89EA07D49F}.dat

        Filesize

        3KB

        MD5

        bf4b542440702bd0d9896d4bd7ac2c95

        SHA1

        a6724f3e0c770ae780826be1829f7206021ce7c5

        SHA256

        413a4eafcdf4bff349285c011c456a8c93df22bc2b195b7c6eb8ca2b2076e22a

        SHA512

        133f1b21f07383c2c9f55a50a3b3818cbb9fc4066c1d6f202f0d6cbd693946bc3673cd298904a48c4995cf800ba598956bbb027b4e6df0584775ad6eacf70d78

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{EBA2D093-BD0D-11EF-A7EA-FA89EA07D49F}.dat

        Filesize

        5KB

        MD5

        997d8750ee30bded58ffcef2ab11b377

        SHA1

        8055da00b23b474f62e9b9818751a4d9f8e8b070

        SHA256

        ef21b24c66f26bd0aeaa4c520c49e43c25e71da02991ca3e2e848ebf36aca86f

        SHA512

        6ee64c43299e4d59eefb4083c9e9c9ae7d634d02126357739b6f660e6c6bf9b6531995ab74bc04579997a7a58182318ef7e83e2ef25066a07fbb89e076c75e1e

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver37A5.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\VKYZDMA5\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        59KB

        MD5

        0e0f0ae845d89c22bb6385f64a6b85fd

        SHA1

        0f3f1e7f18ab81572c5ce938d3880d4a5d7100ac

        SHA256

        5a5b85c582d5d4b3b912ee6789babebf8ae6d87330d0d33d87274841952899dd

        SHA512

        baec989a6329a2a60d954e83279fd57ba2000f8ed79e7a02d145bf44a5bffcd9a831c63f4b7d44e40c51e40b1dfbe72c5cebac04d0ce7b2295e3fd191b122350

      • memory/728-37-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/728-30-0x0000000000060000-0x0000000000061000-memory.dmp

        Filesize

        4KB

      • memory/728-40-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/728-35-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/728-36-0x00000000772D2000-0x00000000772D3000-memory.dmp

        Filesize

        4KB

      • memory/728-32-0x0000000020010000-0x0000000020022000-memory.dmp

        Filesize

        72KB

      • memory/728-29-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/728-31-0x00000000772D2000-0x00000000772D3000-memory.dmp

        Filesize

        4KB

      • memory/2032-34-0x00000000005B0000-0x00000000005B1000-memory.dmp

        Filesize

        4KB

      • memory/2032-33-0x00000000005D0000-0x00000000005D1000-memory.dmp

        Filesize

        4KB

      • memory/3292-1-0x0000000010000000-0x0000000010067000-memory.dmp

        Filesize

        412KB

      • memory/4804-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-18-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-10-0x0000000000400000-0x0000000000423000-memory.dmp

        Filesize

        140KB

      • memory/4804-15-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-21-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/4804-9-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-5-0x0000000000401000-0x0000000000405000-memory.dmp

        Filesize

        16KB

      • memory/4804-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-11-0x00000000008C0000-0x00000000008C1000-memory.dmp

        Filesize

        4KB

      • memory/4804-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4804-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB