Analysis

  • max time kernel
    158s
  • max time network
    161s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    17/03/2022, 08:51

General

  • Target
    Invoice.xlsm
  • Size 21KB
  • Sample220317-kr7bfscff2
  • SHA256 7da6ff113e7093fa1a608493f0ca00fca9b8e2d76804f953ac03393efca04969
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    https://www.almoeqatar.com/cgi-bin/3g/

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 45.76.1.145:443

  • 217.182.25.250:8080

  • 119.193.124.41:7080

  • 192.99.251.50:443

  • 146.59.226.45:443

  • 173.212.193.249:8080

  • 207.38.84.195:8080

  • 45.118.135.203:7080

  • 31.24.158.56:8080

  • 209.126.98.206:8080

  • 212.237.17.99:8080

  • 216.158.226.206:443

  • 50.30.40.196:8080

  • 82.165.152.127:8080

  • 159.8.59.82:8080

  • 107.182.225.142:8080

  • 110.232.117.186:8080

  • 72.15.201.15:8080

  • 5.9.116.246:8080

  • 79.172.212.216:8080

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.

  • Downloads MZ/PE file
  • Loads dropped DLL 2 IoCs
  • Drops file in System32 directory 1 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Invoice.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1884
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\rfs.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3960
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Suxfdbkcy\bxjcl.pjk"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:2696

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1884-134-0x00007FFDD06B0000-0x00007FFDD06C0000-memory.dmp

        memory/1884-136-0x00007FFDD06B0000-0x00007FFDD06C0000-memory.dmp

        memory/1884-135-0x00007FFDD06B0000-0x00007FFDD06C0000-memory.dmp

        memory/1884-137-0x00007FFDD06B0000-0x00007FFDD06C0000-memory.dmp

        memory/1884-138-0x00007FFDD06B0000-0x00007FFDD06C0000-memory.dmp

        memory/1884-139-0x00007FFE10630000-0x00007FFE10825000-memory.dmp

        memory/1884-140-0x00007FFE10630000-0x00007FFE10825000-memory.dmp

        memory/2696-148-0x0000000002430000-0x000000000247D000-memory.dmp

        memory/3960-143-0x0000000002B90000-0x0000000002BDD000-memory.dmp