Analysis

  • max time kernel
    144s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    23-05-2022 14:52

General

  • Target

    invoice-02-01-2022.xls

  • Size

    51KB

  • MD5

    04a6bacaf107ae57c0dad8e133997418

  • SHA1

    9b3f379764d2501fc91164ecc67c5bbccad5d0ed

  • SHA256

    a3f128976fb477883db4f7ecc2aae05e61e2de224ad584454022aced8f8f5ca5

  • SHA512

    c1d90054931c457ae263746f26b3bcf2883d813c177078574aced6e49d197cb1794e5fb47e532dd2aca1646ac0d17baca10c59e42a59b04cc172ef2285d84d6c

Malware Config

Extracted

Family

metasploit

Version

windows/download_exec

C2

http://shinyobjects.birds:80/metal.exe

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Process spawned unexpected child process 1 IoCs

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

  • Office loads VBA resources, possible macro or embedded object present
  • 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 8 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\invoice-02-01-2022.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:1032
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32
      2⤵
      • Process spawned unexpected child process
      PID:1956

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/1032-54-0x000000002F6B1000-0x000000002F6B4000-memory.dmp
    Filesize

    12KB

  • memory/1032-55-0x0000000071671000-0x0000000071673000-memory.dmp
    Filesize

    8KB

  • memory/1032-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1032-57-0x000000007265D000-0x0000000072668000-memory.dmp
    Filesize

    44KB

  • memory/1032-58-0x00000000758D1000-0x00000000758D3000-memory.dmp
    Filesize

    8KB

  • memory/1032-59-0x0000000000657000-0x0000000000662000-memory.dmp
    Filesize

    44KB

  • memory/1032-60-0x0000000000657000-0x0000000000662000-memory.dmp
    Filesize

    44KB

  • memory/1032-61-0x0000000000657000-0x0000000000662000-memory.dmp
    Filesize

    44KB

  • memory/1032-62-0x0000000000657000-0x0000000000662000-memory.dmp
    Filesize

    44KB

  • memory/1032-67-0x0000000000657000-0x0000000000662000-memory.dmp
    Filesize

    44KB

  • memory/1032-66-0x0000000000657000-0x0000000000662000-memory.dmp
    Filesize

    44KB

  • memory/1032-65-0x0000000000657000-0x0000000000662000-memory.dmp
    Filesize

    44KB

  • memory/1956-68-0x0000000000000000-mapping.dmp