Analysis

  • max time kernel
    156s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    03/02/2022, 10:17

General

  • Target
    RIQBUVdBIGS.dll
  • Size 988KB
  • Sample220203-mbgf7sfdfl
  • SHA256 a6526b4911a2ea15924d2e7dd2863a8e8fa3129ea9a6b855ee7a24d60bdfecd6
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 23.246.204.126:443

  • 149.56.163.161:8080

  • 212.237.5.209:443

  • 159.89.230.105:443

  • 178.63.25.185:443

  • 104.251.214.46:8080

  • 195.154.133.20:443

  • 217.182.143.207:443

  • 103.75.201.4:443

  • 162.243.175.63:443

  • 173.212.193.249:8080

  • 138.185.72.26:8080

  • 107.182.225.142:8080

  • 45.118.115.99:8080

  • 46.55.222.11:443

  • 212.237.56.116:7080

  • 178.79.147.66:8080

  • 160.16.102.168:80

  • 212.237.17.99:8080

  • 51.38.71.0:443

eck1.plain
ecs1.plain

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • Sets service image path in registry 2 TTPs
  • Drops file in Windows directory 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 64 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\RIQBUVdBIGS.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:228
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\RIQBUVdBIGS.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1228
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\RIQBUVdBIGS.dll",DllRegisterServer
        3⤵
          PID:2292
    • C:\Windows\system32\MusNotifyIcon.exe
      %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
      1⤵
      • Checks processor information in registry
      PID:3200
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 578d801a04e3ef8521fdc74637011d78 lEOWpF50hUOJQpW5TRVwHw.0.1.0.0.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:2744
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k NetworkService -p
      1⤵
      • Drops file in Windows directory
      • Modifies data under HKEY_USERS
      PID:2824

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1228-130-0x0000000004B00000-0x0000000004B25000-memory.dmp