Analysis

  • max time kernel
    144s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10-20220223-en
  • submitted
    30-03-2022 18:19

General

  • Target

    8a6effb1430c591fa0e6e8ac6f84b1991bf8cc18f70a432ae63e6bda131914c6.xls

  • Size

    106KB

  • MD5

    68e856165288a9bc99a681304b30d552

  • SHA1

    c792461f287fc531967f0f56910b22263e597311

  • SHA256

    8a6effb1430c591fa0e6e8ac6f84b1991bf8cc18f70a432ae63e6bda131914c6

  • SHA512

    23ce7caa40df79663659a898129f25797946a1fe1ded6b970a2b1ef46a43061001d9c341be398be82b1265e7a78ae1251f9197668e008019ecb60ab95ffa7493

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://www.gessersh.com/wp-includes/ZwQLepW/

Extracted

Family

emotet

Botnet

Epoch4

C2

104.131.11.205:443

138.197.109.175:8080

187.84.80.182:443

79.143.187.147:443

189.232.46.161:443

51.91.76.89:8080

103.43.46.182:443

206.189.28.199:8080

45.176.232.124:443

107.182.225.142:8080

72.15.201.15:8080

209.250.246.206:443

164.68.99.3:8080

160.16.142.56:8080

134.122.66.193:8080

45.118.115.99:8080

183.111.227.137:8080

209.126.98.206:8080

1.234.2.232:8080

159.65.88.10:8080

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

  • Loads dropped DLL 1 IoCs
  • Drops file in System32 directory 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 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 12 IoCs
  • Suspicious use of WriteProcessMemory 6 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\8a6effb1430c591fa0e6e8ac6f84b1991bf8cc18f70a432ae63e6bda131914c6.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2564
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\urtj.dll
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Drops file in System32 directory
      • Suspicious use of WriteProcessMemory
      PID:3968
      • C:\Windows\SysWOW64\regsvr32.exe
        C:\Windows\SysWOW64\regsvr32.exe /s "C:\Windows\SysWOW64\Jfjaxaxb\hsaobjxhza.qor"
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        PID:3816

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\urtj.dll

    Filesize

    380KB

    MD5

    13fdb3880c80885036f59af7b992df47

    SHA1

    c71a4d67d20a2aba92b4e1889acb88228ab23cf6

    SHA256

    d9c136ef639aa80630d615a56aff40190d3639bb166e6c2b46a72895a057b440

    SHA512

    6cfba51a8c95b016968ccaf446a8740293b6ab225fdc71b949d53475a0beb117902e1c0018727b70d381ac4af19443acff286adaa035981f01e964f349489e89

  • \Users\Admin\urtj.dll

    Filesize

    380KB

    MD5

    13fdb3880c80885036f59af7b992df47

    SHA1

    c71a4d67d20a2aba92b4e1889acb88228ab23cf6

    SHA256

    d9c136ef639aa80630d615a56aff40190d3639bb166e6c2b46a72895a057b440

    SHA512

    6cfba51a8c95b016968ccaf446a8740293b6ab225fdc71b949d53475a0beb117902e1c0018727b70d381ac4af19443acff286adaa035981f01e964f349489e89

  • memory/2564-114-0x00007FF7FDBF0000-0x00007FF7FDC00000-memory.dmp

    Filesize

    64KB

  • memory/2564-115-0x00007FF7FDBF0000-0x00007FF7FDC00000-memory.dmp

    Filesize

    64KB

  • memory/2564-116-0x00007FF7FDBF0000-0x00007FF7FDC00000-memory.dmp

    Filesize

    64KB

  • memory/2564-117-0x00007FF7FDBF0000-0x00007FF7FDC00000-memory.dmp

    Filesize

    64KB

  • memory/3816-281-0x0000000000FC0000-0x0000000000FE4000-memory.dmp

    Filesize

    144KB

  • memory/3968-267-0x0000000001270000-0x0000000001294000-memory.dmp

    Filesize

    144KB