Analysis

  • max time kernel
    4294217s
  • max time network
    162s
  • platform
    windows7_x64
  • resource
    win7-20220311-en
  • submitted
    30/03/2022, 16:54

General

  • Target
    b3152ca137675b9b038ab7d57d616e90.xls
  • Size 106KB
  • Sample220330-vekl2aeef3
  • SHA256 86fa5221f4897b379f0dc2cbdfeb1cc230c6fedcf6b9a5dcb290ec1bdc2d73da
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • xlm4.0

Source
URLs
  • xlm40.dropper

    https://www.gessersh.com/wp-includes/ZwQLepW/

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 45.176.232.125:443

  • 138.197.109.175:8080

  • 187.84.80.182:443

  • 79.143.187.147:443

  • 189.232.46.161:443

  • 103.70.28.102:8080

  • 134.122.66.193:8080

  • 151.106.112.196:8080

  • 160.16.142.56:8080

  • 212.24.98.99:8080

  • 188.44.20.25:443

  • 197.242.150.244:8080

  • 206.189.28.199:8080

  • 172.104.251.154:8080

  • 103.43.46.182:443

  • 203.114.109.124:443

  • 103.75.201.2:443

  • 58.227.42.236:80

  • 201.94.166.162:443

  • 189.126.111.200:7080

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\b3152ca137675b9b038ab7d57d616e90.xls
    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:1216
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\urtj.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:1956
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Yayeetycrjftikgk\qjlpi.xsu"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:1848

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        94308059B57B3142E455B38A6EB92015

        • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
        • Size 344B
        • SHA256 616890ede07f421ace278f6b0c1e1ca1904ef417a278ab673786593c43f33a7e
        • MD5 SHA1 SHA512

        urtj.dll

        • Path C:\Users\Admin\urtj.dll
        • Size 431KB
        • SHA256 04bdccd0274bbff31c378704adf470844e24477f1b7768229c27a33ac17bfd6f
        • MD5 SHA1 SHA512

        urtj.dll

        • Path \Users\Admin\urtj.dll
        • Size 431KB
        • SHA256 04bdccd0274bbff31c378704adf470844e24477f1b7768229c27a33ac17bfd6f
        • MD5 SHA1 SHA512

        memory/1216-54-0x000000002F471000-0x000000002F474000-memory.dmp

        memory/1216-55-0x0000000071301000-0x0000000071303000-memory.dmp

        memory/1216-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1216-57-0x00000000722ED000-0x00000000722F8000-memory.dmp

        memory/1848-67-0x00000000008F0000-0x0000000000914000-memory.dmp

        memory/1956-59-0x0000000075BB1000-0x0000000075BB3000-memory.dmp

        memory/1956-62-0x00000000001A0000-0x00000000001C4000-memory.dmp