Analysis

  • max time kernel
    43s
  • max time network
    61s
  • platform
    windows10_x64
  • resource
    win10-de-20211104
  • submitted
    25-11-2021 16:47

General

  • Target

    fa1da1725e1015af0d1db5b608c4474b3dc993781042303ca470723def859733.dll

  • Size

    653KB

  • MD5

    dc5fc66af6883025e25a3563ece51b08

  • SHA1

    8592ee526c6fb4ee0975dbc916441f1b1c7dda2f

  • SHA256

    fa1da1725e1015af0d1db5b608c4474b3dc993781042303ca470723def859733

  • SHA512

    1d03d166be4236925db19b767416ec0f4f02e45d385a5bca620e3678aa105e0232a684c3d3febd4f3f0f8a4546ddae5e237f17076a03310913049b3448d5a6d4

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\fa1da1725e1015af0d1db5b608c4474b3dc993781042303ca470723def859733.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:416
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\fa1da1725e1015af0d1db5b608c4474b3dc993781042303ca470723def859733.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:320
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\fa1da1725e1015af0d1db5b608c4474b3dc993781042303ca470723def859733.dll",Control_RunDLL
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        PID:1304
  • 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:3968

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Replay Monitor

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Downloads

  • memory/320-118-0x0000000000000000-mapping.dmp
  • memory/320-119-0x0000000004680000-0x00000000046A8000-memory.dmp
    Filesize

    160KB

  • memory/1304-122-0x0000000000000000-mapping.dmp
  • memory/1304-123-0x00000000047D0000-0x00000000047F8000-memory.dmp
    Filesize

    160KB

  • memory/1304-126-0x0000000004E80000-0x0000000004EA8000-memory.dmp
    Filesize

    160KB

  • memory/1304-129-0x0000000005080000-0x00000000050A8000-memory.dmp
    Filesize

    160KB

  • memory/1304-132-0x0000000005160000-0x0000000005188000-memory.dmp
    Filesize

    160KB

  • memory/1304-135-0x0000000005240000-0x0000000005268000-memory.dmp
    Filesize

    160KB

  • memory/1304-138-0x0000000005320000-0x0000000005348000-memory.dmp
    Filesize

    160KB

  • memory/1304-141-0x0000000005420000-0x0000000005448000-memory.dmp
    Filesize

    160KB