Analysis

  • max time kernel
    60s
  • max time network
    61s
  • platform
    windows10_x64
  • resource
    win10-de-20211104
  • submitted
    25-11-2021 16:28

General

  • Target

    a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba.dll

  • Size

    653KB

  • MD5

    c403c45169439d41086207e5965d7840

  • SHA1

    d4beb37fd654ae6f29a9a3941ee08a80cd65dc41

  • SHA256

    a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba

  • SHA512

    b92272764c1ccf90231e8a05a040bd404d98045d70fd5149f93b54f24672484337053ff4bd417783d370b477e22926ff8a745ecd92a7747a7f87d01d1762b648

Malware Config

Extracted

Family

emotet

Botnet

Epoch5

C2

51.178.61.60:443

168.197.250.14:80

45.79.33.48:8080

196.44.98.190:8080

177.72.80.14:7080

51.210.242.234:8080

185.148.169.10:8080

142.4.219.173:8080

78.47.204.80:443

78.46.73.125:443

37.44.244.177:8080

37.59.209.141:8080

191.252.103.16:80

54.38.242.185:443

85.214.67.203:8080

54.37.228.122:443

207.148.81.119:8080

195.77.239.39:8080

66.42.57.149:443

195.154.146.35:443

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Registers COM server for autorun 1 TTPs
  • Blocklisted process makes network request 2 IoCs
  • Modifies data under HKEY_USERS 21 IoCs
  • Modifies registry class 44 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3704
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1268
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\a05a4c447a3dc734b88028e4554711685b8bd60526dc82a64aeba09ca6b9d0ba.dll",Control_RunDLL
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        PID:1144
  • C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.220.1024.0005\FileSyncConfig.exe
    "C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.220.1024.0005\FileSyncConfig.exe"
    1⤵
    • Modifies registry class
    PID:1416
  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe
    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /frequentupdate SCHEDULEDTASK displaylevel=False
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:2924

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Replay Monitor

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Downloads

  • memory/1144-122-0x0000000000000000-mapping.dmp
  • memory/1144-123-0x00000000002D0000-0x00000000002F8000-memory.dmp
    Filesize

    160KB

  • memory/1144-126-0x0000000000320000-0x0000000000348000-memory.dmp
    Filesize

    160KB

  • memory/1144-129-0x0000000000720000-0x0000000000748000-memory.dmp
    Filesize

    160KB

  • memory/1144-132-0x0000000000750000-0x0000000000778000-memory.dmp
    Filesize

    160KB

  • memory/1144-135-0x0000000000780000-0x00000000007A8000-memory.dmp
    Filesize

    160KB

  • memory/1144-138-0x0000000004A20000-0x0000000004A48000-memory.dmp
    Filesize

    160KB

  • memory/1144-141-0x0000000004B00000-0x0000000004B28000-memory.dmp
    Filesize

    160KB

  • memory/1268-118-0x0000000000000000-mapping.dmp
  • memory/1268-119-0x0000000003070000-0x0000000003098000-memory.dmp
    Filesize

    160KB