Analysis

  • max time kernel
    4294210s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    31/03/2022, 02:36

General

  • Target
    SecuriteInfo.com.Trojan.Vita.6.24691.xlsm
  • Size 50KB
  • Sample220331-c3kmtshbdm
  • SHA256 fd0dfb80a1cb4bbdef0cf9b9a2503563ed8679d88a305b246dce39b58a105bf7
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    http://harleyqueretaro.com/renew2019/Back2016-12-22/cv/data/RjuiFMp4Fsp/

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 104.131.11.205:443

  • 138.197.109.175:8080

  • 187.84.80.182:443

  • 79.143.187.147:443

  • 189.232.46.161:443

  • 51.91.76.89:8080

  • 103.43.46.182:443

  • 206.189.28.199:8080

  • 45.176.232.124:443

  • 107.182.225.142:8080

  • 72.15.201.15:8080

  • 209.250.246.206:443

  • 164.68.99.3:8080

  • 160.16.142.56:8080

  • 134.122.66.193:8080

  • 45.118.115.99:8080

  • 183.111.227.137:8080

  • 209.126.98.206:8080

  • 1.234.2.232:8080

  • 159.65.88.10:8080

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.

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • Downloads MZ/PE file
  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Trojan.Vita.6.24691.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\rulm.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:628
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Obrlvxkqn\nwzewpf.bhe"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1532

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        rulm.dll

        • Path C:\Users\Admin\rulm.dll
        • Size 380KB
        • SHA256 01b37074f12e7e1c13385991d2c7b8968667d660801a3590880ece340323455e
        • MD5 SHA1 SHA512

        rulm.dll

        • Path \Users\Admin\rulm.dll
        • Size 380KB
        • SHA256 01b37074f12e7e1c13385991d2c7b8968667d660801a3590880ece340323455e
        • MD5 SHA1 SHA512

        memory/628-59-0x0000000076071000-0x0000000076073000-memory.dmp

        memory/628-62-0x00000000005C0000-0x00000000005E4000-memory.dmp

        memory/1280-54-0x000000002FFB1000-0x000000002FFB4000-memory.dmp

        memory/1280-55-0x0000000071481000-0x0000000071483000-memory.dmp

        memory/1280-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1280-57-0x000000007246D000-0x0000000072478000-memory.dmp

        memory/1532-68-0x0000000000400000-0x0000000000424000-memory.dmp