Analysis

  • max time kernel
    40s
  • max time network
    52s
  • platform
    windows10_x64
  • resource
    win10-de-20211014
  • submitted
    25-11-2021 16:10

General

  • Target

    b8f6f38a5ca0143e74354ea9d1b3c5852c41a5cd4c85fd819d9c942e286e0cde.dll

  • Size

    653KB

  • MD5

    98b957ea58e669ca709ea4dee69a5c54

  • SHA1

    4b1988be43cb65325b7e573fdfe010855d9c1dbb

  • SHA256

    b8f6f38a5ca0143e74354ea9d1b3c5852c41a5cd4c85fd819d9c942e286e0cde

  • SHA512

    bb66d4e426f7d79c78bce35084e5bce1de0b6fbe125cadc250f6e92d43e940909601633323da10a09aeec7692f23613f308d6ade636472b4f8de489d82faa33b

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 registry class 44 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\b8f6f38a5ca0143e74354ea9d1b3c5852c41a5cd4c85fd819d9c942e286e0cde.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1952
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b8f6f38a5ca0143e74354ea9d1b3c5852c41a5cd4c85fd819d9c942e286e0cde.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:520
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\b8f6f38a5ca0143e74354ea9d1b3c5852c41a5cd4c85fd819d9c942e286e0cde.dll",Control_RunDLL
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        PID:3704
  • 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:380

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/520-115-0x0000000000000000-mapping.dmp
  • memory/520-116-0x0000000004C00000-0x0000000004C28000-memory.dmp
    Filesize

    160KB

  • memory/3704-119-0x0000000000000000-mapping.dmp
  • memory/3704-120-0x0000000004AB0000-0x0000000004AD8000-memory.dmp
    Filesize

    160KB

  • memory/3704-123-0x0000000004D60000-0x0000000004D88000-memory.dmp
    Filesize

    160KB

  • memory/3704-126-0x00000000052A0000-0x00000000052C8000-memory.dmp
    Filesize

    160KB

  • memory/3704-129-0x0000000005390000-0x00000000053B8000-memory.dmp
    Filesize

    160KB

  • memory/3704-132-0x0000000005470000-0x0000000005498000-memory.dmp
    Filesize

    160KB

  • memory/3704-135-0x0000000005550000-0x0000000005578000-memory.dmp
    Filesize

    160KB

  • memory/3704-138-0x0000000005650000-0x0000000005678000-memory.dmp
    Filesize

    160KB