Analysis

  • max time kernel
    60s
  • max time network
    57s
  • platform
    windows10_x64
  • resource
    win10-de-20211104
  • submitted
    25-11-2021 16:35

General

  • Target

    249452e975318fddaaea9f1a7ddb0b88c9d2b7f1d0f6bff4c64886082a4e9c20.dll

  • Size

    653KB

  • MD5

    52116162ec1cd0c8e8d8974504150c3a

  • SHA1

    b57c6b1daa5e3c2f486957fe2f13e4eb23cbc1b4

  • SHA256

    249452e975318fddaaea9f1a7ddb0b88c9d2b7f1d0f6bff4c64886082a4e9c20

  • SHA512

    0840ecc9b8c30f7674e9313979d7f46768e43cba1fdbffa287033a70f82f05be48883c1674173755112000392b5e6b8becaec1fd7b22624fa2b65c2a0ad51144

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 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies data under HKEY_USERS 21 IoCs
  • Modifies registry class 44 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\249452e975318fddaaea9f1a7ddb0b88c9d2b7f1d0f6bff4c64886082a4e9c20.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4588
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\249452e975318fddaaea9f1a7ddb0b88c9d2b7f1d0f6bff4c64886082a4e9c20.dll,#1
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4152
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\AppData\Local\Temp\249452e975318fddaaea9f1a7ddb0b88c9d2b7f1d0f6bff4c64886082a4e9c20.dll",Control_RunDLL
        3⤵
        • Drops file in System32 directory
        • Suspicious behavior: RenamesItself
        • Suspicious use of WriteProcessMemory
        PID:4660
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Rpngzgyizqfa\ffcjfmrawtp.zav",TLKMiZlLUOYimxX
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:692
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Rpngzgyizqfa\ffcjfmrawtp.zav",Control_RunDLL
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:3284
  • 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:4124
  • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe
    "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /frequentupdate SCHEDULEDTASK displaylevel=False
    1⤵
    • Modifies data under HKEY_USERS
    • Suspicious use of SetWindowsHookEx
    PID:3628

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/692-138-0x0000000000000000-mapping.dmp
  • memory/692-143-0x0000000003000000-0x0000000003028000-memory.dmp
    Filesize

    160KB

  • memory/3284-146-0x0000000003200000-0x0000000003228000-memory.dmp
    Filesize

    160KB

  • memory/3284-145-0x0000000000000000-mapping.dmp
  • memory/3284-161-0x0000000005450000-0x0000000005478000-memory.dmp
    Filesize

    160KB

  • memory/3284-158-0x0000000005370000-0x0000000005398000-memory.dmp
    Filesize

    160KB

  • memory/3284-155-0x0000000005290000-0x00000000052B8000-memory.dmp
    Filesize

    160KB

  • memory/3284-152-0x00000000051B0000-0x00000000051D8000-memory.dmp
    Filesize

    160KB

  • memory/3284-149-0x0000000004FD0000-0x0000000004FF8000-memory.dmp
    Filesize

    160KB

  • memory/4152-118-0x0000000000000000-mapping.dmp
  • memory/4152-119-0x00000000026E0000-0x0000000002708000-memory.dmp
    Filesize

    160KB

  • memory/4660-132-0x0000000004C60000-0x0000000004C88000-memory.dmp
    Filesize

    160KB

  • memory/4660-139-0x0000000004E20000-0x0000000004E48000-memory.dmp
    Filesize

    160KB

  • memory/4660-122-0x0000000000000000-mapping.dmp
  • memory/4660-135-0x0000000004CC0000-0x0000000004CE8000-memory.dmp
    Filesize

    160KB

  • memory/4660-123-0x00000000043B0000-0x00000000043D8000-memory.dmp
    Filesize

    160KB

  • memory/4660-129-0x0000000004AC0000-0x0000000004AE8000-memory.dmp
    Filesize

    160KB

  • memory/4660-126-0x0000000004580000-0x00000000045A8000-memory.dmp
    Filesize

    160KB