Analysis

  • max time kernel
    143s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 19:05

General

  • Target

    277c263e788311014b6242c5fb3058e3ef3eaab3a02b312ac5e5f111d68a0b5f.exe

  • Size

    248KB

  • MD5

    5674d371be612f08af5faab96f2f0c1a

  • SHA1

    1eb5efb0b829f8dd5265ede1907f41a7985f70c8

  • SHA256

    277c263e788311014b6242c5fb3058e3ef3eaab3a02b312ac5e5f111d68a0b5f

  • SHA512

    1a2c3d2876b3d3b4b4ced37cb5d4d7f18e7083282e5b7ea4ac5c9dff94eebe5dc6029316528f9909466f515884361509564a80d74b3fb9e76e92f813588cc7ef

  • SSDEEP

    3072:uR2xn3k0CdM1vabyzJYWqyZcFaF504UwPGX1NhG2ozrl8SmaUBzMZqa12DtjSM:uR2J0LS6Vymc0IPGEfzrjmPzMZq2s

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 17 IoCs

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

  • Drops file in Program Files directory 5 IoCs
  • Program crash 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 48 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 3 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\277c263e788311014b6242c5fb3058e3ef3eaab3a02b312ac5e5f111d68a0b5f.exe
    "C:\Users\Admin\AppData\Local\Temp\277c263e788311014b6242c5fb3058e3ef3eaab3a02b312ac5e5f111d68a0b5f.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Users\Admin\AppData\Local\Temp\277c263e788311014b6242c5fb3058e3ef3eaab3a02b312ac5e5f111d68a0b5fmgr.exe
      C:\Users\Admin\AppData\Local\Temp\277c263e788311014b6242c5fb3058e3ef3eaab3a02b312ac5e5f111d68a0b5fmgr.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:2340
      • C:\Program Files (x86)\Microsoft\WaterMark.exe
        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:380
        • C:\Windows\SysWOW64\svchost.exe
          C:\Windows\system32\svchost.exe
          4⤵
            PID:5092
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 5092 -s 208
              5⤵
              • Program crash
              PID:4736
          • 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:3608
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3608 CREDAT:17410 /prefetch:2
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:4048
          • 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:3692
            • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
              "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3692 CREDAT:17410 /prefetch:2
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of SetWindowsHookEx
              PID:4652
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 5092 -ip 5092
      1⤵
        PID:208

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Microsoft\WaterMark.exe

        Filesize

        123KB

        MD5

        04161f533ee93611681445f8a165ed68

        SHA1

        d3f4b2bfc8b384d2602989082056751ae21b8105

        SHA256

        97e8d8fefbd8aef88875b7373e6a5ec0ff0fa02fc1b63af254d8116e6d959f81

        SHA512

        4e3ad0bd23e728966e7f0d86fda0883bb8196d9eca93c6c9633c3b786c451864fabd9f300fb7355277fb8de334c1fe5cb54b01c2ad88c3e51ad7fa221a57119f

      • C:\Program Files (x86)\Microsoft\WaterMark.exe

        Filesize

        123KB

        MD5

        04161f533ee93611681445f8a165ed68

        SHA1

        d3f4b2bfc8b384d2602989082056751ae21b8105

        SHA256

        97e8d8fefbd8aef88875b7373e6a5ec0ff0fa02fc1b63af254d8116e6d959f81

        SHA512

        4e3ad0bd23e728966e7f0d86fda0883bb8196d9eca93c6c9633c3b786c451864fabd9f300fb7355277fb8de334c1fe5cb54b01c2ad88c3e51ad7fa221a57119f

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{F3DE9563-6B7C-11ED-919F-DE9E83FE850F}.dat

        Filesize

        3KB

        MD5

        43a8454d0fe2fe4229a65668d2db4ba4

        SHA1

        7ddf52a4891d32a91a6a015cc8ee9a35308619ad

        SHA256

        03d2bd11232d3b34dcd7c86de234400aecd512016191deb5fc801c7ea596d7ef

        SHA512

        73c2e681cf60d0f00515b4b203ef4375f1aaf58d182b72e790cea3fdc6275b7286c1e71e0393d828c9e113631943321f5abdc119b1f98e3a52c013ffc0ddb823

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{F3E81F0F-6B7C-11ED-919F-DE9E83FE850F}.dat

        Filesize

        5KB

        MD5

        af841021c30c06a717db5191bb1bebf5

        SHA1

        4bdf3e19a4fdf63e913cd0457b43408206811c1a

        SHA256

        63829a17cba4c826fb602964a8a3c900e25dcbe6c76f88ef134430f45873255a

        SHA512

        e0c5f52da17ab5dcf7fb7f93f10e97a124d2cb1e0826e4da6218f6ff5e28e39e785fa236a24d76a070c892639a914a81ad9fba8672a30e6d001c5e5d68995577

      • C:\Users\Admin\AppData\Local\Temp\277c263e788311014b6242c5fb3058e3ef3eaab3a02b312ac5e5f111d68a0b5fmgr.exe

        Filesize

        123KB

        MD5

        04161f533ee93611681445f8a165ed68

        SHA1

        d3f4b2bfc8b384d2602989082056751ae21b8105

        SHA256

        97e8d8fefbd8aef88875b7373e6a5ec0ff0fa02fc1b63af254d8116e6d959f81

        SHA512

        4e3ad0bd23e728966e7f0d86fda0883bb8196d9eca93c6c9633c3b786c451864fabd9f300fb7355277fb8de334c1fe5cb54b01c2ad88c3e51ad7fa221a57119f

      • C:\Users\Admin\AppData\Local\Temp\277c263e788311014b6242c5fb3058e3ef3eaab3a02b312ac5e5f111d68a0b5fmgr.exe

        Filesize

        123KB

        MD5

        04161f533ee93611681445f8a165ed68

        SHA1

        d3f4b2bfc8b384d2602989082056751ae21b8105

        SHA256

        97e8d8fefbd8aef88875b7373e6a5ec0ff0fa02fc1b63af254d8116e6d959f81

        SHA512

        4e3ad0bd23e728966e7f0d86fda0883bb8196d9eca93c6c9633c3b786c451864fabd9f300fb7355277fb8de334c1fe5cb54b01c2ad88c3e51ad7fa221a57119f

      • memory/380-164-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/380-153-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/380-170-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/380-169-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/380-168-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/380-167-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/380-144-0x0000000000000000-mapping.dmp

      • memory/380-163-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/380-162-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/1712-140-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1712-154-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1712-151-0x0000000000400000-0x000000000044B000-memory.dmp

        Filesize

        300KB

      • memory/1712-132-0x0000000000400000-0x000000000044B000-memory.dmp

        Filesize

        300KB

      • memory/1712-150-0x0000000000400000-0x000000000044B000-memory.dmp

        Filesize

        300KB

      • memory/1712-149-0x0000000000400000-0x000000000044B000-memory.dmp

        Filesize

        300KB

      • memory/1712-142-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2340-156-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/2340-152-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/2340-133-0x0000000000000000-mapping.dmp

      • memory/2340-148-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/2340-147-0x0000000000400000-0x000000000042B000-memory.dmp

        Filesize

        172KB

      • memory/5092-161-0x0000000000000000-mapping.dmp