Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-20220414-en
  • submitted
    07-07-2022 04:13

General

  • Target

    a143d87f0842c73830ec5045ed73c4b0c50a8f1ded1d987b53e2d2c6c768aee6.xls

  • Size

    95KB

  • MD5

    9188649c1cdfb1cd39d80b9980753675

  • SHA1

    42a9d1e4dcb5b57c944b41874f30f9a38a6c24d4

  • SHA256

    a143d87f0842c73830ec5045ed73c4b0c50a8f1ded1d987b53e2d2c6c768aee6

  • SHA512

    812c486a73c8db8614f55e31ed5ad03f08baf336e42639646612bcad6c15b9c4360a51ee8300b7cb0a1c471caed5f06eb9845e60a73498501c7453375ab71f93

Malware Config

Extracted

Language xlm4.0
Source
URLs
xlm40.dropper

http://www.sunflowerlaboratory.in/fonts/79Tq62ly/

xlm40.dropper

http://dirigent.co.uk/vardagsekonomi/iC36jJ4J1cf/

xlm40.dropper

http://agtrade.hu/images/kiQYmOs2tSKq/

xlm40.dropper

https://www.zachboyle.com/wp-admin/EA470ZrTGNkuA/

Extracted

Family

emotet

Botnet

Epoch4

C2

94.23.45.86:4143

209.97.163.214:443

212.24.98.99:8080

103.43.75.120:443

183.111.227.137:8080

197.242.150.244:8080

129.232.188.93:443

159.65.88.10:8080

163.44.196.120:8080

51.161.73.194:443

164.90.222.65:443

159.89.202.34:443

1.234.2.232:8080

150.95.66.124:8080

51.91.76.89:8080

196.218.30.83:443

5.9.116.246:8080

146.59.226.45:443

173.212.193.249:8080

213.241.20.155:443

eck1.plain
ecs1.plain

Signatures 11

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • Process spawned unexpected child process ⋅ 4 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

  • Downloads MZ/PE file
  • Loads dropped DLL ⋅ 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 ⋅ 6 IoCs
  • Suspicious use of SetWindowsHookEx ⋅ 12 IoCs
  • Suspicious use of WriteProcessMemory ⋅ 10 IoCs

Processes 6

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\a143d87f0842c73830ec5045ed73c4b0c50a8f1ded1d987b53e2d2c6c768aee6.xls"
    Checks processor information in registry
    Enumerates system info in registry
    Suspicious behavior: AddClipboardFormatListener
    Suspicious use of SetWindowsHookEx
    Suspicious use of WriteProcessMemory
    PID:3052
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci1.ocx
      Process spawned unexpected child process
      Loads dropped DLL
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of WriteProcessMemory
      PID:3404
      • C:\Windows\system32\regsvr32.exe
        C:\Windows\system32\regsvr32.exe "C:\Windows\system32\WYajhyLmrqUyRhO\ndsicuF.dll"
        Suspicious behavior: EnumeratesProcesses
        PID:3244
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci2.ocx
      Process spawned unexpected child process
      PID:4816
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci3.ocx
      Process spawned unexpected child process
      PID:640
    • C:\Windows\System32\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\soci4.ocx
      Process spawned unexpected child process
      PID:928

Network

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Persistence

                      Privilege Escalation

                        Replay Monitor

                        00:00 00:00

                        Downloads

                        • C:\Users\Admin\soci1.ocx
                          MD5

                          173d4eb883b2de45e58cf2b0da704eaf

                          SHA1

                          e073d688664d58fc6943c20c84ece8ce2864f0a3

                          SHA256

                          f3de60a2ae73d50b5852f16b61983c2214bf8fdf4a1633b576fe53a7d26a3e86

                          SHA512

                          3ded417b682336cf8b4e77160129b0048aa5e104562041d0f7658c944a71f0cbd3092455f1610eccc14d166007db0676a72dfc3634c1e178be2ebbc69646c151

                        • \Users\Admin\soci1.ocx
                          MD5

                          173d4eb883b2de45e58cf2b0da704eaf

                          SHA1

                          e073d688664d58fc6943c20c84ece8ce2864f0a3

                          SHA256

                          f3de60a2ae73d50b5852f16b61983c2214bf8fdf4a1633b576fe53a7d26a3e86

                          SHA512

                          3ded417b682336cf8b4e77160129b0048aa5e104562041d0f7658c944a71f0cbd3092455f1610eccc14d166007db0676a72dfc3634c1e178be2ebbc69646c151

                        • memory/640-297-0x0000000000000000-mapping.dmp
                        • memory/928-300-0x0000000000000000-mapping.dmp
                        • memory/3052-118-0x00007FF8A0F90000-0x00007FF8A0FA0000-memory.dmp
                        • memory/3052-119-0x00007FF8A0F90000-0x00007FF8A0FA0000-memory.dmp
                        • memory/3052-120-0x00007FF8A0F90000-0x00007FF8A0FA0000-memory.dmp
                        • memory/3052-129-0x00007FF89DBB0000-0x00007FF89DBC0000-memory.dmp
                        • memory/3052-130-0x00007FF89DBB0000-0x00007FF89DBC0000-memory.dmp
                        • memory/3052-117-0x00007FF8A0F90000-0x00007FF8A0FA0000-memory.dmp
                        • memory/3244-289-0x0000000000000000-mapping.dmp
                        • memory/3404-275-0x0000000000000000-mapping.dmp
                        • memory/3404-278-0x0000000180000000-0x000000018002D000-memory.dmp
                        • memory/4816-288-0x0000000000000000-mapping.dmp