Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/03/2024, 19:59

General

  • Target

    37e02c5103ce940a75439d07fd7f43e4945da7ffb17501b04a137a9969c858a1.exe

  • Size

    602KB

  • MD5

    d7d05f1d921be037982d8c1fa20e6be5

  • SHA1

    b31b9ea455ce1fc0ad6c8bcdd3a5d923b3b5a60a

  • SHA256

    37e02c5103ce940a75439d07fd7f43e4945da7ffb17501b04a137a9969c858a1

  • SHA512

    44b7bdb4e3edc8cff779d76730a23bebce25c07ba63a670d26bfbda4bb339dce490f46aba996e8dcbd8d68cbdccc73a1b2504dfaebccacb0a4bb3cc0344884af

  • SSDEEP

    6144:r0+URhIb8NDgt1n6+p5XWv5QzQArJa+156g0EP4IZne+Mlcp:vUDIbOgt1n6IdWqHa+15lHZne+Mlcp

Malware Config

Signatures

  • Ramnit

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

  • UPX dump on OEP (original entry point) 2 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 1 IoCs

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

  • Program crash 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37e02c5103ce940a75439d07fd7f43e4945da7ffb17501b04a137a9969c858a1.exe
    "C:\Users\Admin\AppData\Local\Temp\37e02c5103ce940a75439d07fd7f43e4945da7ffb17501b04a137a9969c858a1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4648
    • C:\Users\Admin\AppData\Local\Temp\37e02c5103ce940a75439d07fd7f43e4945da7ffb17501b04a137a9969c858a1mgr.exe
      C:\Users\Admin\AppData\Local\Temp\37e02c5103ce940a75439d07fd7f43e4945da7ffb17501b04a137a9969c858a1mgr.exe
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:1828
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1828 -s 520
        3⤵
        • Program crash
        PID:2680
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1828 -ip 1828
    1⤵
      PID:2528

    Network

          MITRE ATT&CK Matrix

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\37e02c5103ce940a75439d07fd7f43e4945da7ffb17501b04a137a9969c858a1mgr.exe

            Filesize

            157KB

            MD5

            2ad7467eeceedd64b8bd4f6e04c3cd49

            SHA1

            d6c5d9878dc49ae9b531d61283609e207154a921

            SHA256

            2aab17b2f18dfb70cd737b27b1a438ad8878889070a6e025b3684483054f60c9

            SHA512

            7a647d4a8de90d11cd5afb82ace8354869af0893f28afcf9491d1d4de421315d9a394a5d3462d88c0eff6c5a7a4ed41897d8d0498b59b4b7428ddbb61786be2a

          • C:\Users\Admin\AppData\Local\Temp\~TM40C2.tmp

            Filesize

            1.6MB

            MD5

            4f3387277ccbd6d1f21ac5c07fe4ca68

            SHA1

            e16506f662dc92023bf82def1d621497c8ab5890

            SHA256

            767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

            SHA512

            9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

          • memory/1828-5-0x0000000000400000-0x0000000000432000-memory.dmp

            Filesize

            200KB

          • memory/1828-6-0x0000000000400000-0x0000000000432000-memory.dmp

            Filesize

            200KB

          • memory/1828-7-0x0000000001F80000-0x0000000001FB2000-memory.dmp

            Filesize

            200KB

          • memory/1828-11-0x0000000076EE2000-0x0000000076EE4000-memory.dmp

            Filesize

            8KB

          • memory/1828-12-0x0000000076EE2000-0x0000000076EE3000-memory.dmp

            Filesize

            4KB

          • memory/4648-0-0x0000000000400000-0x000000000049B000-memory.dmp

            Filesize

            620KB

          • memory/4648-13-0x0000000000400000-0x000000000049B000-memory.dmp

            Filesize

            620KB