Analysis

  • max time kernel
    118s
  • max time network
    80s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    20-05-2022 22:26

General

  • Target

    2022-05-21-553415daec66312a733986f2df4f7ff8_unzipped.xls

  • Size

    68KB

  • MD5

    553415daec66312a733986f2df4f7ff8

  • SHA1

    e27493f88e6262901d2ad20ab4e751c6230d810a

  • SHA256

    207b14f58a6732ce4fd7cc637f113a37ba49b965cba0e780672ce850a5887b01

  • SHA512

    52f3887f7f1d79baa6da77f02518bcda9176cc40df67af93f5d8ba784b7ed5c2e96ea25e897040b7ad0c62e02f1b6bb7d64e978ae578ea1660a9c8f72f31b784

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://www.berekethaber.com/hatax/fovLaro/

xlm40.dropper

https://bosny.com/aspnet_client/ErI5F74cwiiOywe/

xlm40.dropper

http://www.cesasin.com.ar/administrator/HC46kHDUSYN305GglCP/

xlm40.dropper

https://bencevendeghaz.hu/wp-includes/tXQBsglNOIsunk/

Signatures

  • Process spawned unexpected child process 4 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 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 28 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\2022-05-21-553415daec66312a733986f2df4f7ff8_unzipped.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1084
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\uxevr1.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1424
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\uxevr2.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1756
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\uxevr3.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1892
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\System32\regsvr32.exe /S ..\uxevr4.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1644

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/1084-54-0x000000002FB81000-0x000000002FB84000-memory.dmp
    Filesize

    12KB

  • memory/1084-55-0x00000000710D1000-0x00000000710D3000-memory.dmp
    Filesize

    8KB

  • memory/1084-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1084-57-0x0000000075CF1000-0x0000000075CF3000-memory.dmp
    Filesize

    8KB

  • memory/1084-58-0x00000000720BD000-0x00000000720C8000-memory.dmp
    Filesize

    44KB

  • memory/1424-59-0x0000000000000000-mapping.dmp
  • memory/1644-65-0x0000000000000000-mapping.dmp
  • memory/1756-61-0x0000000000000000-mapping.dmp
  • memory/1892-63-0x0000000000000000-mapping.dmp