Analysis

  • max time kernel
    124s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10-en-20211104
  • submitted
    16-11-2021 22:30

General

  • Target

    b146a3fcca2e592d516c0e0616ac9ff9d5519b04fc06116ba34d2b7fb09b800a.dll

  • Size

    252KB

  • MD5

    dd585193342959a772d736a6f304c81d

  • SHA1

    8728521b21bea5c826b90dcc153068955736362b

  • SHA256

    b146a3fcca2e592d516c0e0616ac9ff9d5519b04fc06116ba34d2b7fb09b800a

  • SHA512

    73c7aee74373db9795bc7972f40f8b398e944c8ac80cf54f1c171c77bd991f30c3bb2097a9fda0ba90c0af345c4729d9a7b57165d538000a0f23a45b5372e763

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

81.0.236.93:443

94.177.248.64:443

66.42.55.5:7080

103.8.26.103:8080

185.184.25.237:8080

45.76.176.10:8080

188.93.125.116:8080

103.8.26.102:8080

178.79.147.66:8080

58.227.42.236:80

45.118.135.203:7080

103.75.201.2:443

195.154.133.20:443

45.142.114.231:8080

212.237.5.209:443

207.38.84.195:8080

104.251.214.46:8080

138.185.72.26:8080

51.68.175.8:8080

210.57.217.132:8080

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • 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)

  • Blocklisted process makes network request 3 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\b146a3fcca2e592d516c0e0616ac9ff9d5519b04fc06116ba34d2b7fb09b800a.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3704
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\b146a3fcca2e592d516c0e0616ac9ff9d5519b04fc06116ba34d2b7fb09b800a.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3836
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\b146a3fcca2e592d516c0e0616ac9ff9d5519b04fc06116ba34d2b7fb09b800a.dll",Control_RunDLL
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        PID:3992

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • memory/3836-118-0x0000000000000000-mapping.dmp

  • memory/3836-120-0x0000000010000000-0x0000000010028000-memory.dmp

    Filesize

    160KB

  • memory/3992-119-0x0000000000000000-mapping.dmp