Windows 7 deprecation

Windows 7 will be removed from tria.ge on 2025-03-31

Analysis

  • max time kernel
    149s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    13/01/2022, 07:24

General

  • Target

    45885866BZCAIB-85.xlsm

  • Size

    83KB

  • MD5

    9668d5dd1e75ab9acacea35e3cb32084

  • SHA1

    ffd4f89c0a3ec3adb9a816d1a6a3aea3f648ee6d

  • SHA256

    8eb596f88bc2ba3ba62a765c607202109fa122dfb49673b6f34fdbcc921b34ee

  • SHA512

    cc59059828351348454cabbe2b21b3041d869b1d46bbef137b296a502d5b6cd41dacc346a6b0acc38d9f8e32df532ec32b8598a1d6e45fbdbdc948a95b5b310f

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://mammy-chiro.com/case/ZTkBzbz/

xlm40.dropper

http://bluetoothheadsetreview.xyz/wp-includes/xmdHAGgfki/

Signatures

  • 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 2 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.

  • 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 behavior: EnumeratesProcesses 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\45885866BZCAIB-85.xlsm
    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:1900
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\dwa.ocx,D"&"l"&"lR"&"egister"&"Server
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:608
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\dwa.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:896
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Aotzhixly\wjmkhfg.fva",vvvbE
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:752
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Aotzhixly\wjmkhfg.fva",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:1752

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/608-62-0x0000000000211000-0x0000000000235000-memory.dmp

    Filesize

    144KB

  • memory/608-59-0x00000000760F1000-0x00000000760F3000-memory.dmp

    Filesize

    8KB

  • memory/608-63-0x0000000000235000-0x0000000000236000-memory.dmp

    Filesize

    4KB

  • memory/752-80-0x00000000002A1000-0x00000000002C5000-memory.dmp

    Filesize

    144KB

  • memory/896-71-0x0000000000A41000-0x0000000000A65000-memory.dmp

    Filesize

    144KB

  • memory/896-77-0x00000000027F1000-0x0000000002815000-memory.dmp

    Filesize

    144KB

  • memory/896-69-0x00000000005B1000-0x00000000005D5000-memory.dmp

    Filesize

    144KB

  • memory/896-73-0x0000000000AF1000-0x0000000000B15000-memory.dmp

    Filesize

    144KB

  • memory/896-75-0x00000000024C1000-0x00000000024E5000-memory.dmp

    Filesize

    144KB

  • memory/896-67-0x0000000000291000-0x00000000002B5000-memory.dmp

    Filesize

    144KB

  • memory/1752-84-0x00000000001A1000-0x00000000001C5000-memory.dmp

    Filesize

    144KB

  • memory/1752-86-0x0000000000281000-0x00000000002A5000-memory.dmp

    Filesize

    144KB

  • memory/1752-88-0x0000000002001000-0x0000000002025000-memory.dmp

    Filesize

    144KB

  • memory/1752-90-0x00000000020A1000-0x00000000020C5000-memory.dmp

    Filesize

    144KB

  • memory/1752-92-0x0000000002101000-0x0000000002125000-memory.dmp

    Filesize

    144KB

  • memory/1900-55-0x000000002F621000-0x000000002F624000-memory.dmp

    Filesize

    12KB

  • memory/1900-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1900-56-0x0000000071821000-0x0000000071823000-memory.dmp

    Filesize

    8KB