Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    12-01-2022 08:30

General

  • Target

    BWE_31945.xlsm

  • Size

    83KB

  • MD5

    2d4926a62674ed003b4f0c0539e5da34

  • SHA1

    1c8e7d26be6323a676314dc027241a2f78a2b1c2

  • SHA256

    6913af2de9271a92bd9c7c9afe4923a08f237459d7e1e03d171e96fa291e39ee

  • SHA512

    127529410f0c8b84364e7d0270c118e80a0fdf06fdd6c56963597f64904fe36f16794e6ebebb68bf29086c52656553d5f00b779983a0dd64559094538e677b50

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

http://unifiedpharma.com/wp-admin/ildi5K2aTIrdvEobQ/

Signatures

  • 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

  • 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\BWE_31945.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:1928
    • C:\Windows\SysWow64\rundll32.exe
      C:\Windows\SysWow64\rundll32.exe ..\adi.ocx,D"&"l"&"lR"&"egister"&"Serve"&"r
      2⤵
      • Process spawned unexpected child process
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1804
      • C:\Windows\SysWOW64\rundll32.exe
        C:\Windows\SysWOW64\rundll32.exe "C:\Users\Admin\adi.ocx",DllRegisterServer
        3⤵
        • Loads dropped DLL
        • Drops file in System32 directory
        • Suspicious use of WriteProcessMemory
        PID:1076
        • C:\Windows\SysWOW64\rundll32.exe
          C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Sibfapm\rcwdic.kln",KeLhQXIGQ
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:2012
          • C:\Windows\SysWOW64\rundll32.exe
            C:\Windows\SysWOW64\rundll32.exe "C:\Windows\SysWOW64\Sibfapm\rcwdic.kln",DllRegisterServer
            5⤵
            • Blocklisted process makes network request
            • Suspicious behavior: EnumeratesProcesses
            PID:1676

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1076-69-0x0000000000381000-0x00000000003A5000-memory.dmp

    Filesize

    144KB

  • memory/1076-73-0x0000000002081000-0x00000000020A5000-memory.dmp

    Filesize

    144KB

  • memory/1076-75-0x0000000002441000-0x0000000002465000-memory.dmp

    Filesize

    144KB

  • memory/1076-71-0x0000000000B31000-0x0000000000B55000-memory.dmp

    Filesize

    144KB

  • memory/1076-67-0x00000000001A1000-0x00000000001C5000-memory.dmp

    Filesize

    144KB

  • memory/1676-92-0x0000000002C41000-0x0000000002C65000-memory.dmp

    Filesize

    144KB

  • memory/1676-89-0x0000000002591000-0x00000000025B5000-memory.dmp

    Filesize

    144KB

  • memory/1676-87-0x0000000002471000-0x0000000002495000-memory.dmp

    Filesize

    144KB

  • memory/1676-85-0x0000000002361000-0x0000000002385000-memory.dmp

    Filesize

    144KB

  • memory/1676-83-0x0000000000241000-0x0000000000265000-memory.dmp

    Filesize

    144KB

  • memory/1804-62-0x0000000000771000-0x0000000000795000-memory.dmp

    Filesize

    144KB

  • memory/1804-59-0x0000000076511000-0x0000000076513000-memory.dmp

    Filesize

    8KB

  • memory/1804-63-0x0000000000795000-0x0000000000796000-memory.dmp

    Filesize

    4KB

  • memory/1928-57-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1928-55-0x000000002F771000-0x000000002F774000-memory.dmp

    Filesize

    12KB

  • memory/1928-56-0x00000000719F1000-0x00000000719F3000-memory.dmp

    Filesize

    8KB

  • memory/2012-79-0x0000000000271000-0x0000000000295000-memory.dmp

    Filesize

    144KB