Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2023 13:20

General

  • Target

    37c4b3187a66fb062d2baffa89cc2e33.exe

  • Size

    1.3MB

  • MD5

    37c4b3187a66fb062d2baffa89cc2e33

  • SHA1

    9540728dc59b2738e77a0ac631776cead56a9cc4

  • SHA256

    df4adacafc2e2a13d1fbfcad58333d72516aef4a642c0edaa46c58393609bde2

  • SHA512

    ff579c8964ff6c675c8716ce2acd5e789723b01303987bf6ba316b653d7b88c852f61714298310c6de757b922c10674fa60223ec56e0bd33bab69e070eee7ded

  • SSDEEP

    24576:Cs8p1CLEKeJmwOj09hLzAvCBnVMOaxkobWsCFbnLiCNXJ8wiuyl2Oxr13y+KqtWx:Cs8pMLEKUtdhLnKko3ClnL1N58wiuyB4

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • UPX packed file 11 IoCs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\37c4b3187a66fb062d2baffa89cc2e33.exe
    "C:\Users\Admin\AppData\Local\Temp\37c4b3187a66fb062d2baffa89cc2e33.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4812
    • C:\Users\Admin\Localdir\svchost.exe
      C:\Users\Admin\Localdir\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Users\Admin\Localdir\setup.exe
        C:\Users\Admin\Localdir\setup.exe
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        PID:3180

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\Localdir\setup.exe

    Filesize

    164KB

    MD5

    56d3ea5da34bfad5b1c753805e2a6379

    SHA1

    c932ce446efb805aaa52ea3a5869570b52779362

    SHA256

    e6a1e29ceacd629770eaa17350028f4826e8b53e71d9789ce6cbb08a2b479d36

    SHA512

    7d0ce9735b1994fe1e12b224213b22be8ac043231eb845823fade03b6a9119eaedfd27622dfa0c0e7593f7bafb48f534e63a10bd3ded1f3b8ccb4787cacc8597

  • C:\Users\Admin\Localdir\setup.exe

    Filesize

    130KB

    MD5

    d0dc52fe6a8ae80d7d9eed67e304403d

    SHA1

    7b2cd3b0b7a8f39856e80fa31b83223af6f81987

    SHA256

    c391992949bb3b1b8dba2d8911b08d32ab27062576a12371c6cc86b2312204ca

    SHA512

    61b07e58fe62b1d0858a696d438fcf34ba3b5b7d910f0b196f28f9e8fbb3118520e2c714ae8e340d37a8b02e51c66784140b62b7152f8f26bceff8548ee7613c

  • C:\Users\Admin\Localdir\svchost.exe

    Filesize

    149KB

    MD5

    d0dbc2778147371bb1a5eb838d1a2c7f

    SHA1

    43ecf071b93b826872811246f48630a1c40d3753

    SHA256

    f2a0611c2882fa5b92d9d4cf8570ffc81bb69d8ddc7695328e21c7175e8796a8

    SHA512

    38d736846909facff22c308ea5764e20798dc205e0fd79a4e4b9d592a4c3fb6d2b54175b746ab511bc8d34395838c63066164f67dcf6b890d6a9c30a1c94efba

  • C:\Users\Admin\Localdir\svchost.exe

    Filesize

    167KB

    MD5

    5e31aabd82e6c1b0a0ceea57fad5950c

    SHA1

    a5e061b7af68c3b7498f9ef800ae9a47681cf26b

    SHA256

    568882a5614b4bf3ded4878aaf34099bfa9874cb063cabf29dc5a9c59bca3116

    SHA512

    ce9e4181a3b4ac6e6915fff1bec584bb4df411f01c5c911611b9f3b0f652d0aea926782e8292cedf8169b787442769368b6cd2ad7ff403e30334581833f93b83

  • memory/3180-15-0x0000000001000000-0x0000000001333000-memory.dmp

    Filesize

    3.2MB

  • memory/3180-20-0x0000000001000000-0x0000000001333000-memory.dmp

    Filesize

    3.2MB

  • memory/3180-23-0x0000000001000000-0x0000000001333000-memory.dmp

    Filesize

    3.2MB

  • memory/4092-9-0x0000000000400000-0x000000000059F000-memory.dmp

    Filesize

    1.6MB

  • memory/4092-19-0x0000000000400000-0x000000000059F000-memory.dmp

    Filesize

    1.6MB

  • memory/4812-0-0x0000000000400000-0x000000000059F000-memory.dmp

    Filesize

    1.6MB

  • memory/4812-16-0x0000000000400000-0x000000000059F000-memory.dmp

    Filesize

    1.6MB