Analysis

  • max time kernel
    146s
  • max time network
    143s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08/03/2023, 07:26

General

  • Target

    K-1 03.07.2023.doc

  • Size

    527.2MB

  • MD5

    fd37aece5d1c1538fdaab4b4fa1fa16a

  • SHA1

    101fbc6beec580efc3582c7f619c711e9fb6d385

  • SHA256

    d9988c6dcd1c169af8db5bc3c363f18f66501a63dd9fc1b671ad32f5de359472

  • SHA512

    99cc15b540873054513d9f3fb13b250b253ab77ca83c45b350af17d04572b76db67c5f176627aaa8741113bc26d6890a15bde794557065dc9c341a65a4c13fb0

  • SSDEEP

    3072:eoEW2aOtFjH0lP2IpjctfRcVVwEi/A8NVM1wIOCbX6bYLjWFJuvx7ueK6:ZE1aOtFa2I9c3aVw4zwxCbJ4Jup

Malware Config

Extracted

Family

emotet

Botnet

Epoch4

C2

129.232.188.93:443

164.90.222.65:443

159.65.88.10:8080

172.105.226.75:8080

115.68.227.76:8080

187.63.160.88:80

169.57.156.166:8080

185.4.135.165:8080

153.126.146.25:7080

197.242.150.244:8080

139.59.126.41:443

186.194.240.217:443

103.132.242.26:8080

206.189.28.199:8080

163.44.196.120:8080

95.217.221.146:8080

159.89.202.34:443

119.59.103.152:8080

183.111.227.137:8080

201.94.166.162:443

eck1.plain
ecs1.plain

Signatures

  • Emotet

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

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\K-1 03.07.2023.doc" /o ""
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:64
    • C:\Windows\System32\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s "C:\Users\Admin\AppData\Local\Temp\082728.tmp"
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1484
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\SUycNwzAgej\KLvA.dll"
        3⤵
        • Loads dropped DLL
        • Adds Run key to start application
        • Suspicious behavior: EnumeratesProcesses
        PID:232

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\082728.tmp

          Filesize

          504.7MB

          MD5

          69a5d6bff7916e89328735d6dfeb1969

          SHA1

          9b08a294c6f0c6cf91c023f8314a4434c23e0fd2

          SHA256

          d8b45395fabe03155050debe2c8669ebc3a38f0d151143129f4361d5dbf51616

          SHA512

          cb259efd4cd1824385e990b2bdedff62254e68655aa8cdf1b3f622a7c7047993980fd5f813bcf16e3efa6cd68ac4aeae07f2bbf0f848faf4389fbac137be1749

        • C:\Users\Admin\AppData\Local\Temp\082728.tmp

          Filesize

          504.7MB

          MD5

          69a5d6bff7916e89328735d6dfeb1969

          SHA1

          9b08a294c6f0c6cf91c023f8314a4434c23e0fd2

          SHA256

          d8b45395fabe03155050debe2c8669ebc3a38f0d151143129f4361d5dbf51616

          SHA512

          cb259efd4cd1824385e990b2bdedff62254e68655aa8cdf1b3f622a7c7047993980fd5f813bcf16e3efa6cd68ac4aeae07f2bbf0f848faf4389fbac137be1749

        • C:\Users\Admin\AppData\Local\Temp\082731.zip

          Filesize

          840KB

          MD5

          6f2a721496ce327f6b66737c325528d7

          SHA1

          f764bbe18f54c1c52009af247c7c072d92869e7a

          SHA256

          9b710c737351b0209216977b7d56cd640e55a8233b273e1d3c2c55ddd3ecd4db

          SHA512

          a0eced8b7445ad500a21e9608ab90c2e2cd84574ba1db330f1bc68ef4ccd14c7b136d73116537cf3f408f6ee62636d3345e6ba6935af7af093f6861b96bcb8c5

        • C:\Windows\System32\SUycNwzAgej\KLvA.dll

          Filesize

          504.7MB

          MD5

          69a5d6bff7916e89328735d6dfeb1969

          SHA1

          9b08a294c6f0c6cf91c023f8314a4434c23e0fd2

          SHA256

          d8b45395fabe03155050debe2c8669ebc3a38f0d151143129f4361d5dbf51616

          SHA512

          cb259efd4cd1824385e990b2bdedff62254e68655aa8cdf1b3f622a7c7047993980fd5f813bcf16e3efa6cd68ac4aeae07f2bbf0f848faf4389fbac137be1749

        • memory/64-162-0x000002A2A9F10000-0x000002A2AA063000-memory.dmp

          Filesize

          1.3MB

        • memory/64-138-0x00007FFE0F060000-0x00007FFE0F070000-memory.dmp

          Filesize

          64KB

        • memory/64-139-0x00007FFE0F060000-0x00007FFE0F070000-memory.dmp

          Filesize

          64KB

        • memory/64-137-0x00007FFE11150000-0x00007FFE11160000-memory.dmp

          Filesize

          64KB

        • memory/64-221-0x00007FFE11150000-0x00007FFE11160000-memory.dmp

          Filesize

          64KB

        • memory/64-136-0x00007FFE11150000-0x00007FFE11160000-memory.dmp

          Filesize

          64KB

        • memory/64-224-0x00007FFE11150000-0x00007FFE11160000-memory.dmp

          Filesize

          64KB

        • memory/64-135-0x00007FFE11150000-0x00007FFE11160000-memory.dmp

          Filesize

          64KB

        • memory/64-223-0x00007FFE11150000-0x00007FFE11160000-memory.dmp

          Filesize

          64KB

        • memory/64-222-0x00007FFE11150000-0x00007FFE11160000-memory.dmp

          Filesize

          64KB

        • memory/64-134-0x00007FFE11150000-0x00007FFE11160000-memory.dmp

          Filesize

          64KB

        • memory/64-133-0x00007FFE11150000-0x00007FFE11160000-memory.dmp

          Filesize

          64KB

        • memory/232-190-0x0000000000400000-0x00000000004B0000-memory.dmp

          Filesize

          704KB

        • memory/1484-184-0x0000000000400000-0x00000000004B0000-memory.dmp

          Filesize

          704KB

        • memory/1484-183-0x0000000002410000-0x0000000002411000-memory.dmp

          Filesize

          4KB

        • memory/1484-179-0x0000000180000000-0x000000018002D000-memory.dmp

          Filesize

          180KB