Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    29/03/2022, 15:08

General

  • Target
    1c0121fab03b9c1e82a370ead1a925ea.xls
  • Size 126KB
  • Sample220329-shv6tsfch4
  • SHA256 fa0b00a97c0fcdee52edad2f04692efa11a8567946cffac17a52cfef6da485a6
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    http://drvishalchestclinic.com/wp-includes/SqqCZQ6y2uyFF/

  • xlm40.dropper

    http://funestotal.com/5aclo1em/21U/

  • xlm40.dropper

    http://g-wizcomputers.com/party/61W0ovBu86/

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 216.120.236.62:8080

  • 189.232.46.161:443

  • 51.91.76.89:8080

  • 217.182.25.250:8080

  • 119.193.124.41:7080

  • 159.8.59.82:8080

  • 195.201.151.129:8080

  • 58.227.42.236:80

  • 212.24.98.99:8080

  • 138.185.72.26:8080

  • 131.100.24.231:80

  • 192.99.251.50:443

  • 158.69.222.101:443

  • 197.242.150.244:8080

  • 50.116.54.215:443

  • 188.44.20.25:443

  • 212.237.17.99:8080

  • 153.126.146.25:7080

  • 103.75.201.2:443

  • 5.9.116.246:8080

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\1c0121fab03b9c1e82a370ead1a925ea.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\efhj.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:4528
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Rxpltrvmloef\mhbjsknbf.qtf"
        3⤵
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        PID:2352

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        efhj.dll

        • Path C:\Users\Admin\efhj.dll
        • Size 576KB
        • SHA256 bb01a42f1b01a2d94a33b0cc9d192a2b5b447289133e12d92b619903e87c7086
        • MD5 SHA1 SHA512

        efhj.dll

        • Path C:\Users\Admin\efhj.dll
        • Size 576KB
        • SHA256 bb01a42f1b01a2d94a33b0cc9d192a2b5b447289133e12d92b619903e87c7086
        • MD5 SHA1 SHA512

        mhbjsknbf.qtf

        • Path C:\Windows\SysWOW64\Rxpltrvmloef\mhbjsknbf.qtf
        • Size 576KB
        • SHA256 bb01a42f1b01a2d94a33b0cc9d192a2b5b447289133e12d92b619903e87c7086
        • MD5 SHA1 SHA512

        memory/1408-130-0x00007FF916F10000-0x00007FF916F20000-memory.dmp

        memory/1408-131-0x00007FF916F10000-0x00007FF916F20000-memory.dmp

        memory/1408-132-0x00007FF916F10000-0x00007FF916F20000-memory.dmp

        memory/1408-133-0x00007FF916F10000-0x00007FF916F20000-memory.dmp

        memory/1408-134-0x00007FF916F10000-0x00007FF916F20000-memory.dmp

        memory/2352-143-0x0000000002AE0000-0x0000000002B04000-memory.dmp

        memory/4528-138-0x0000000002D80000-0x0000000002DA4000-memory.dmp