Analysis

  • max time kernel
    145s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    04/02/2022, 16:24

General

  • Target
    82cdf76be03abadb212593a62e2027dd.dll
  • Size 977KB
  • Sample220204-twddlsccg7
  • SHA256 cc4d30dc1067731d26c138bb4a355c182526e9bfee186d330963389716ddbf99
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 192.254.71.210:443

  • 23.246.204.126:443

  • 164.68.99.3:8080

  • 144.76.186.49:8080

  • 192.95.56.148:8080

  • 79.172.212.216:8080

  • 162.214.50.39:7080

  • 81.0.236.90:443

  • 159.89.230.105:443

  • 45.176.232.124:443

  • 212.24.98.99:8080

  • 185.157.82.211:8080

  • 159.8.59.82:8080

  • 45.118.135.203:7080

  • 51.254.140.238:7080

  • 144.76.186.55:7080

  • 46.55.222.11:443

  • 212.237.56.116:7080

  • 58.227.42.236:80

  • 162.243.175.63:443

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\82cdf76be03abadb212593a62e2027dd.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2564
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\82cdf76be03abadb212593a62e2027dd.dll
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:388
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\82cdf76be03abadb212593a62e2027dd.dll",DllRegisterServer
        3⤵
          PID:2428
    • C:\Windows\system32\MusNotifyIcon.exe
      %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
      1⤵
      • Checks processor information in registry
      PID:3432
    • C:\Windows\System32\WaaSMedicAgent.exe
      C:\Windows\System32\WaaSMedicAgent.exe 033e70e6ce3fa517cc84afaaee22d06b Z52hAriCBUqv4jiPrq2zRA.0.1.0.0.0
      1⤵
      • Modifies data under HKEY_USERS
      PID:1536
    • 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:3720

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/388-130-0x0000000002C80000-0x0000000002CA5000-memory.dmp