Analysis

  • max time kernel
    43s
  • max time network
    57s
  • platform
    windows10_x64
  • resource
    win10-de-20211104
  • submitted
    25-11-2021 16:51

General

  • Target

    5491be8fc1109b516c333e69d0564b97d7ea9bc688b2370149b2cc23c86a9281.dll

  • Size

    653KB

  • MD5

    99eb13bf592edf57e628200949faf6d8

  • SHA1

    89248920566aea790860c952b9ca926d62e34fb3

  • SHA256

    5491be8fc1109b516c333e69d0564b97d7ea9bc688b2370149b2cc23c86a9281

  • SHA512

    d092d1d494738c620cb6ee5c887b5866b974b1d6bb089475877f9813225acc919d12da029003c2950deaa81bc19cc76235d2c4278fcce283a3213b0b980cd040

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
  • suricata: ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex/Trickbot CnC)

    suricata: ET MALWARE ABUSE.CH SSL Blacklist Malicious SSL certificate detected (Dridex/Trickbot CnC)

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • 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\5491be8fc1109b516c333e69d0564b97d7ea9bc688b2370149b2cc23c86a9281.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\5491be8fc1109b516c333e69d0564b97d7ea9bc688b2370149b2cc23c86a9281.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:832
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\5491be8fc1109b516c333e69d0564b97d7ea9bc688b2370149b2cc23c86a9281.dll",Control_RunDLL
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        PID:872
  • 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:2212

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Replay Monitor

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Downloads

  • memory/832-118-0x0000000000000000-mapping.dmp
  • memory/832-119-0x0000000004DC0000-0x0000000004DE8000-memory.dmp
    Filesize

    160KB

  • memory/872-122-0x0000000000000000-mapping.dmp
  • memory/872-123-0x0000000003F40000-0x0000000003F68000-memory.dmp
    Filesize

    160KB

  • memory/872-126-0x0000000004540000-0x0000000004568000-memory.dmp
    Filesize

    160KB

  • memory/872-129-0x0000000004720000-0x0000000004748000-memory.dmp
    Filesize

    160KB

  • memory/872-132-0x0000000004800000-0x0000000004828000-memory.dmp
    Filesize

    160KB

  • memory/872-135-0x00000000048E0000-0x0000000004908000-memory.dmp
    Filesize

    160KB

  • memory/872-138-0x00000000049C0000-0x00000000049E8000-memory.dmp
    Filesize

    160KB

  • memory/872-141-0x0000000004AB0000-0x0000000004AD8000-memory.dmp
    Filesize

    160KB