Analysis

  • max time kernel
    146s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/03/2024, 00:53

General

  • Target

    c7453fccf113e393515bb6c6af7f0b73.exe

  • Size

    98KB

  • MD5

    c7453fccf113e393515bb6c6af7f0b73

  • SHA1

    29bc0b27594dc06a1c34be2de5a94c9bba8a55be

  • SHA256

    e25d37f0e34e022913ed08284f08fc44538cf8ce9aacf24f492774ef7445b40e

  • SHA512

    9d2343325ec30bc700448bf0a8dcb4ea11cc7acbde9f31ee8bc0b047ff1816f61de2595a373f9367fdff425a01ff56d70e889389149e95874fbc18ecac1f9d62

  • SSDEEP

    3072:4BKwcvdwuxdWikJlCpUG+BEQ56XO3VuDm9TkeH:4BKwcvdnECmG6VuOYaOeH

Malware Config

Signatures

  • Ramnit

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

  • Executes dropped EXE 2 IoCs
  • UPX packed file 3 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).

  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 13 IoCs
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73.exe
    "C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73.exe"
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4672
    • C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe
      C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:620
      • C:\Program Files (x86)\Microsoft\DesktopLayer.exe
        "C:\Program Files (x86)\Microsoft\DesktopLayer.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4748
        • 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:3116
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3116 CREDAT:17410 /prefetch:2
            5⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:1544
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:2716

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver2BBE.tmp

            Filesize

            15KB

            MD5

            1a545d0052b581fbb2ab4c52133846bc

            SHA1

            62f3266a9b9925cd6d98658b92adec673cbe3dd3

            SHA256

            557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

            SHA512

            bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

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

            Filesize

            17KB

            MD5

            5a34cb996293fde2cb7a4ac89587393a

            SHA1

            3c96c993500690d1a77873cd62bc639b3a10653f

            SHA256

            c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

            SHA512

            e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

          • C:\Users\Admin\AppData\Local\Temp\c7453fccf113e393515bb6c6af7f0b73Srv.exe

            Filesize

            52KB

            MD5

            17efb7e40d4cadaf3a4369435a8772ec

            SHA1

            eb9302063ac2ab599ae93aaa1e45b88bbeacbca2

            SHA256

            f515564b67efd06fa42f57532feafc49d40b0fc36c5d4935300dd55416f0a386

            SHA512

            522fba06304950860fa9aa8933b12b9323dea47dbda363db3f57535396c156c4cf6934a9db38fff8c77503fcb889d030fadb639094a1f34bbad54c79c8734450

          • memory/620-4-0x0000000000400000-0x0000000000413000-memory.dmp

            Filesize

            76KB

          • memory/620-7-0x0000000000400000-0x0000000000413000-memory.dmp

            Filesize

            76KB

          • memory/620-8-0x0000000000570000-0x0000000000572000-memory.dmp

            Filesize

            8KB

          • memory/620-14-0x0000000000400000-0x0000000000413000-memory.dmp

            Filesize

            76KB

          • memory/4672-21-0x0000000001000000-0x000000000101C000-memory.dmp

            Filesize

            112KB

          • memory/4672-0-0x0000000001000000-0x000000000101C000-memory.dmp

            Filesize

            112KB

          • memory/4748-16-0x0000000002020000-0x0000000002021000-memory.dmp

            Filesize

            4KB

          • memory/4748-18-0x0000000077DE2000-0x0000000077DE3000-memory.dmp

            Filesize

            4KB

          • memory/4748-19-0x0000000000400000-0x0000000000413000-memory.dmp

            Filesize

            76KB

          • memory/4748-17-0x0000000077DE2000-0x0000000077DE3000-memory.dmp

            Filesize

            4KB