Analysis

  • max time kernel
    95s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    11-03-2021 16:32

General

  • Target

    Cancellation-1376764675-03112021.xls

  • Size

    277KB

  • MD5

    40a5aaddd126b30b64265ac529798bd0

  • SHA1

    ca0f058f2aa9cc2038cf62efd14d5eb82feaaebd

  • SHA256

    53762e0edac9d950447b9c55d53b1aa224e8903f69a6f6fa1fe6eb76c3171365

  • SHA512

    fa6ef43ce56147e7f5a64dd0b612884dabc19ecb4c5cca40219e3d80db6da2990f39d778b442b3f55e20ba0d0109eebfbdf439a4826b90e424cfbf376d4a53b4

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://195.123.220.67/44266.6916006944.dat

xlm40.dropper

http://45.150.67.127/44266.6916006944.dat

xlm40.dropper

http://181.215.47.82/44266.6916006944.dat

xlm40.dropper

http://reynare.com/sbazaa/44266.6916006944.dat

xlm40.dropper

http://hosting152231.a2e16.netcup.net/zhrzoxxo/44266.6916006944.dat

Signatures

  • Process spawned unexpected child process 5 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 35 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\Cancellation-1376764675-03112021.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:776
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Runtime.brok,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1512
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Runtime.brok1,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1144
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Runtime.brok2,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:456
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Runtime.brok3,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:1620
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32 ..\Runtime.brok4,DllRegisterServer
      2⤵
      • Process spawned unexpected child process
      PID:912

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/456-10-0x0000000000000000-mapping.dmp
  • memory/776-2-0x000000002F2F1000-0x000000002F2F4000-memory.dmp
    Filesize

    12KB

  • memory/776-3-0x0000000071191000-0x0000000071193000-memory.dmp
    Filesize

    8KB

  • memory/776-4-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/912-14-0x0000000000000000-mapping.dmp
  • memory/1144-8-0x0000000000000000-mapping.dmp
  • memory/1388-5-0x000007FEF6010000-0x000007FEF628A000-memory.dmp
    Filesize

    2.5MB

  • memory/1512-6-0x0000000000000000-mapping.dmp
  • memory/1512-7-0x0000000075C61000-0x0000000075C63000-memory.dmp
    Filesize

    8KB

  • memory/1620-12-0x0000000000000000-mapping.dmp