Resubmissions

23/03/2022, 04:17

220323-ewh7jafah6

23/03/2022, 04:09

220323-eqvclsfab810

Analysis

  • max time kernel
    147s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220310-en
  • submitted
    23/03/2022, 04:09

General

  • Target
    New Address and payment details.xlsm
  • Size 29KB
  • Sample220323-eqvclsfab8
  • SHA256 a11485d550d2b357809d54295372d07c01a4aa2b0b774bf0a4ad982394c8d056
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    https://iqraacfindia.org/wp-admin/dG/

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 51.91.76.89:8080

  • 173.254.208.91:8080

  • 149.56.128.192:443

  • 120.50.40.183:80

  • 160.16.218.63:8080

  • 206.188.212.92:8080

  • 46.55.222.11:443

  • 79.172.212.216:8080

  • 103.221.221.247:8080

  • 58.227.42.236:80

  • 192.99.251.50:443

  • 185.157.82.211:8080

  • 159.8.59.82:8080

  • 51.91.7.5:8080

  • 131.100.24.231:80

  • 159.65.88.10:8080

  • 195.201.151.129:8080

  • 45.176.232.124:443

  • 31.24.158.56:8080

  • 50.30.40.196:8080

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 3 IoCs
  • Drops file in System32 directory 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 9 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\New Address and payment details.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\whxc.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:4328
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Eaeypbuvf\czrfprvrutznqu.mvv"
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        • Suspicious use of WriteProcessMemory
        PID:1160
        • C:\Windows\SysWOW64\regsvr32.exe
          C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Xbuwjjbovstgjtjl\phyuwdk.smb"
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          PID:448

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/448-153-0x0000000002C70000-0x0000000002C94000-memory.dmp

        memory/1160-147-0x0000000002400000-0x0000000002424000-memory.dmp

        memory/1320-138-0x00007FF8191F0000-0x00007FF819200000-memory.dmp

        memory/1320-134-0x00007FF8191F0000-0x00007FF819200000-memory.dmp

        memory/1320-137-0x00007FF8191F0000-0x00007FF819200000-memory.dmp

        memory/1320-136-0x00007FF8191F0000-0x00007FF819200000-memory.dmp

        memory/1320-135-0x00007FF8191F0000-0x00007FF819200000-memory.dmp

        memory/4328-142-0x00000000024F0000-0x0000000002514000-memory.dmp