Analysis

  • max time kernel
    60s
  • max time network
    66s
  • platform
    windows10_x64
  • resource
    win10-de-20211104
  • submitted
    25-11-2021 16:58

General

  • Target

    a4209d7cdfa44429c2a34cdb53ace1b05c0f36616ceb33c4ad8bf7c28a8ce2a0.dll

  • Size

    653KB

  • MD5

    3e889cc626ada6f57da98205ee94d0d6

  • SHA1

    1990f510271b94ba0f64a6c1c8c63f22fd3d5861

  • SHA256

    a4209d7cdfa44429c2a34cdb53ace1b05c0f36616ceb33c4ad8bf7c28a8ce2a0

  • SHA512

    1736b9793a6a5f8915785e789f781b951740bf337f704e838860d70d3585f5f0a7d91df238bf4bbe53effd1c6093c5f396b363d718c73c133210bbb6b15f9968

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\a4209d7cdfa44429c2a34cdb53ace1b05c0f36616ceb33c4ad8bf7c28a8ce2a0.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:876
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\a4209d7cdfa44429c2a34cdb53ace1b05c0f36616ceb33c4ad8bf7c28a8ce2a0.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1056
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\a4209d7cdfa44429c2a34cdb53ace1b05c0f36616ceb33c4ad8bf7c28a8ce2a0.dll",Control_RunDLL
        3⤵
        • Blocklisted process makes network request
        • Suspicious behavior: EnumeratesProcesses
        PID:2920
  • 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:1944

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1056-118-0x0000000000000000-mapping.dmp
  • memory/1056-119-0x0000000000E50000-0x0000000000E78000-memory.dmp
    Filesize

    160KB

  • memory/2920-122-0x0000000000000000-mapping.dmp
  • memory/2920-123-0x00000000044B0000-0x00000000044D8000-memory.dmp
    Filesize

    160KB

  • memory/2920-126-0x00000000045A0000-0x00000000045C8000-memory.dmp
    Filesize

    160KB

  • memory/2920-129-0x0000000004C90000-0x0000000004CB8000-memory.dmp
    Filesize

    160KB

  • memory/2920-132-0x0000000004D70000-0x0000000004D98000-memory.dmp
    Filesize

    160KB

  • memory/2920-135-0x0000000004E50000-0x0000000004E78000-memory.dmp
    Filesize

    160KB

  • memory/2920-138-0x0000000004F30000-0x0000000004F58000-memory.dmp
    Filesize

    160KB

  • memory/2920-141-0x0000000005030000-0x0000000005058000-memory.dmp
    Filesize

    160KB