Analysis

  • max time kernel
    140s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12/10/2023, 16:44

General

  • Target
    champ.exe
  • Size 382KB
  • Sample231012-t874raec47
  • SHA256 b48656a73f039dfc48e237f13a15133739b2f26af136b9540f038e922f98b2c0
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • originbotnet

C2
  • http://wjjiutia.com/gate

Attributes
  • add_startup

    true

  • download_folder_name

    phjjylsh.agr

  • hide_file_startup

    true

  • startup_directory_name

    snuXV

  • startup_environment_name

    appdata

  • startup_installation_name

    snuXV.exe

  • startup_registry_name

    snuXV

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:99.0) Gecko/20100101 Firefox/99.0

Signatures

  • OriginBotnet

    OriginBotnet is a remote access trojan written in C#.

  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\champ.exe
    "C:\Users\Admin\AppData\Local\Temp\champ.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1144
    • C:\Users\Admin\AppData\Local\Temp\champ.exe
      "C:\Users\Admin\AppData\Local\Temp\champ.exe"
      2⤵
        PID:316
      • C:\Users\Admin\AppData\Local\Temp\champ.exe
        "C:\Users\Admin\AppData\Local\Temp\champ.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1780
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1780 -s 808
          3⤵
          • Program crash
          PID:4436
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1780 -ip 1780
      1⤵
        PID:816

      Network

            MITRE ATT&CK Matrix

            Replay Monitor

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            Downloads

            champ.exe.log

            • Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\champ.exe.log
            • Size 1KB
            • SHA256 1e1b444fe2d8772f6709b22b94bb5b0aa7fa590f6a693705d9bf1f2f71267a55
            • MD5 SHA1 SHA512

            memory/1144-8-0x0000000074F50000-0x0000000075700000-memory.dmp

            memory/1144-10-0x00000000070A0000-0x00000000070AA000-memory.dmp

            memory/1144-3-0x00000000057A0000-0x0000000005832000-memory.dmp

            memory/1144-4-0x0000000005840000-0x0000000005B94000-memory.dmp

            memory/1144-5-0x0000000005730000-0x0000000005740000-memory.dmp

            memory/1144-6-0x0000000005C40000-0x0000000005C4A000-memory.dmp

            memory/1144-7-0x00000000063F0000-0x0000000006400000-memory.dmp

            memory/1144-1-0x0000000074F50000-0x0000000075700000-memory.dmp

            memory/1144-2-0x0000000005CA0000-0x0000000006244000-memory.dmp

            memory/1144-11-0x0000000008860000-0x00000000088A8000-memory.dmp

            memory/1144-9-0x0000000005730000-0x0000000005740000-memory.dmp

            memory/1144-12-0x000000000AFF0000-0x000000000B08C000-memory.dmp

            memory/1144-17-0x0000000074F50000-0x0000000075700000-memory.dmp

            memory/1144-0-0x0000000000D50000-0x0000000000DB6000-memory.dmp

            memory/1780-16-0x0000000074F50000-0x0000000075700000-memory.dmp

            memory/1780-13-0x0000000000400000-0x000000000040E000-memory.dmp

            memory/1780-18-0x0000000074F50000-0x0000000075700000-memory.dmp