Analysis

  • max time kernel
    4294211s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    15/03/2022, 12:59

General

  • Target
    Rech 2022.15.03_1346.xlsm
  • Size 49KB
  • Sample220315-p74bysbdf3
  • SHA256 d713be3d1b39bfe49a2fc5ba448d27bb419e9cd34bc5864adc29fc518c13bdfd
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    https://alinatourbg.com/mail/TBCGVNzLeENXb/

  • xlm40.dropper

    http://alinac.ca/images/Lp6yKpIpRf6/

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 217.182.143.248:8080

  • 185.4.135.27:8080

  • 192.99.251.50:443

  • 146.59.226.45:443

  • 162.214.118.104:8080

  • 195.154.133.20:443

  • 103.75.201.2:443

  • 5.9.116.246:8080

  • 177.87.70.10:8080

  • 31.24.158.56:8080

  • 103.75.201.4:443

  • 158.69.222.101:443

  • 185.157.82.211:8080

  • 185.8.212.130:7080

  • 186.250.48.117:7080

  • 110.232.117.186:8080

  • 46.55.222.11:443

  • 196.218.30.83:443

  • 51.91.7.5:8080

  • 176.56.128.118:443

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.

  • 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\Rech 2022.15.03_1346.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:1548
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\ujg.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1172
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Tnzavwzcff\ttwliofkch.duc"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1820

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1172-58-0x0000000075611000-0x0000000075613000-memory.dmp

        memory/1172-61-0x0000000000230000-0x0000000000258000-memory.dmp

        memory/1548-54-0x000000002F1A1000-0x000000002F1A4000-memory.dmp

        memory/1548-55-0x0000000071151000-0x0000000071153000-memory.dmp

        memory/1548-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1548-57-0x000000007213D000-0x0000000072148000-memory.dmp

        memory/1820-65-0x0000000000210000-0x0000000000238000-memory.dmp