Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03/02/2024, 19:01

General

  • Target
    8d19f3b96a30cdc22d6a771306780696.exe
  • Size 145KB
  • Sample240203-xpjhtsgbb7
  • SHA256 90f6c55a70a5cbbb9f71db71aea174413774ef759b10721f7cbf7d79d129bf43
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • metasploit

Version
  • encoder/call4_dword_xor

Signatures

  • Detect Lumma Stealer payload V4 10 IoCs
  • Lumma Stealer

    An infostealer written in C++ first seen in August 2022.

  • MetaSploit

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

  • Modifies firewall policy service 2 TTPs 8 IoCs
  • Windows security bypass 2 TTPs 4 IoCs
  • Modifies Windows Firewall 2 TTPs 7 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Windows security modification 2 TTPs 4 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies data under HKEY_USERS 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8d19f3b96a30cdc22d6a771306780696.exe
    "C:\Users\Admin\AppData\Local\Temp\8d19f3b96a30cdc22d6a771306780696.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3132
  • C:\Windows\Fonts\unwise_.exe
    "C:\Windows\Fonts\unwise_.exe"
    1⤵
    • Modifies firewall policy service
    • Windows security bypass
    • Deletes itself
    • Executes dropped EXE
    • Windows security modification
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1140
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 445 NB
      2⤵
      • Modifies Windows Firewall
      PID:4852
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 139 NB
      2⤵
      • Modifies Windows Firewall
      PID:4124
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 1013 BS
      2⤵
      • Modifies Windows Firewall
      PID:4788
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 9999 PORT1
      2⤵
      • Modifies Windows Firewall
      PID:1604
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 9991 PORT2
      2⤵
      • Modifies Windows Firewall
      PID:920
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall add allowedprogram "C:\Windows\Fonts\unwise_.exe" workstation ENABLE ALL
      2⤵
      • Modifies Windows Firewall
      PID:3080
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set allowedprogram "C:\Windows\Fonts\unwise_.exe" workstation ENABLE ALL
      2⤵
      • Modifies Windows Firewall
      PID:5072

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        unwise_.exe

        • Path C:\Windows\Fonts\unwise_.exe
        • Size 145KB
        • SHA256 90f6c55a70a5cbbb9f71db71aea174413774ef759b10721f7cbf7d79d129bf43
        • MD5 SHA1 SHA512 SSDEEP

        memory/1140-9-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/1140-6-0x00000000007A0000-0x00000000007A2000-memory.dmp

        memory/1140-8-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/1140-11-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/1140-13-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/1140-15-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/1140-17-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/1140-19-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/1140-20-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/1140-22-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/3132-1-0x0000000000760000-0x0000000000762000-memory.dmp

        memory/3132-7-0x0000000000400000-0x0000000000681000-memory.dmp

        memory/3132-0-0x0000000000400000-0x0000000000681000-memory.dmp