Overview

overview

10

Static

static

db6cea7e8d...47.exe

windows7_x64

10

db6cea7e8d...47.exe

windows10-2004_x64

Analysis

  • max time kernel
    151s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    16-05-2022 19:23

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General

  • Target

    db6cea7e8d62d3b21efe3b423b48c131e345cb55f168cbe1f142e491bb812747.exe

  • Size

    185KB

  • MD5

    15717cd327a723820d71900611545917

  • SHA1

    99184ec149d329e98cd3e600cfaba22a2f9a0156

  • SHA256

    db6cea7e8d62d3b21efe3b423b48c131e345cb55f168cbe1f142e491bb812747

  • SHA512

    a0de435db809e3e79f89411017e244c76145e010c67f894d41e265804c832f5514ac2f31cc9a0c667afa77aaaf3eccecac148279ca5a0feba492b222d5481a49

Score
10/10
metasploitbackdoorevasionpersistencesuricatatrojan

Malware Config

Extracted

Family

metasploit

Version

encoder/call4_dword_xor

Signatures

  • MetaSploit

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

    trojanbackdoormetasploit
  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Modifies firewall policy service 2 TTPs 8 IoCs
    evasion
  • Modifies security service 2 TTPs 1 IoCs
    evasion
  • Windows security bypass 2 TTPs
    evasiontrojan
  • suricata: ET MALWARE IRC Nick change on non-standard port

    suricata: ET MALWARE IRC Nick change on non-standard port

    suricata
  • Executes dropped EXE 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs
    evasion
  • Modifies Installed Components in the registry 2 TTPs
    persistence
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Deletes itself 1 IoCs
  • Windows security modification 2 TTPs 5 IoCs
    evasiontrojan
  • Adds Run key to start application 2 TTPs 4 IoCs
    persistence
  • Drops file in System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Drops file in Windows directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies data under HKEY_USERS 62 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\db6cea7e8d62d3b21efe3b423b48c131e345cb55f168cbe1f142e491bb812747.exe
    "C:\Users\Admin\AppData\Local\Temp\db6cea7e8d62d3b21efe3b423b48c131e345cb55f168cbe1f142e491bb812747.exe"
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:892
  • C:\Windows\Fonts\wmsncs.exe
    "C:\Windows\Fonts\wmsncs.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Modifies firewall policy service
    • Modifies security service
    • Executes dropped EXE
    • Deletes itself
    • Windows security modification
    • Adds Run key to start application
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 1013 BS
      2⤵
      • Modifies data under HKEY_USERS
      PID:1972
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 8080 PORT1
      2⤵
      • Modifies data under HKEY_USERS
      PID:1088
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set portopening TCP 8081 PORT2
      2⤵
      • Modifies data under HKEY_USERS
      PID:520
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall add allowedprogram "C:\Windows\Fonts\wmsncs.exe" workstation ENABLE ALL
      2⤵
      • Modifies data under HKEY_USERS
      PID:640
    • C:\Windows\SysWOW64\netsh.exe
      "C:\Windows\System32\netsh.exe" firewall set allowedprogram "C:\Windows\Fonts\wmsncs.exe" workstation ENABLE ALL
      2⤵
      • Modifies data under HKEY_USERS
      PID:336

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Windows\Fonts\wmsncs.exe
    Filesize

    185KB

    MD5

    15717cd327a723820d71900611545917

    SHA1

    99184ec149d329e98cd3e600cfaba22a2f9a0156

    SHA256

    db6cea7e8d62d3b21efe3b423b48c131e345cb55f168cbe1f142e491bb812747

    SHA512

    a0de435db809e3e79f89411017e244c76145e010c67f894d41e265804c832f5514ac2f31cc9a0c667afa77aaaf3eccecac148279ca5a0feba492b222d5481a49

    Download Submit

  • C:\Windows\Fonts\wmsncs.exe
    Filesize

    185KB

    MD5

    15717cd327a723820d71900611545917

    SHA1

    99184ec149d329e98cd3e600cfaba22a2f9a0156

    SHA256

    db6cea7e8d62d3b21efe3b423b48c131e345cb55f168cbe1f142e491bb812747

    SHA512

    a0de435db809e3e79f89411017e244c76145e010c67f894d41e265804c832f5514ac2f31cc9a0c667afa77aaaf3eccecac148279ca5a0feba492b222d5481a49

    Download Submit

  • memory/336-63-0x0000000000000000-mapping.dmp

    Download

  • memory/520-61-0x0000000000000000-mapping.dmp

    Download

  • memory/640-62-0x0000000000000000-mapping.dmp

    Download

  • memory/892-54-0x0000000075801000-0x0000000075803000-memory.dmp

    Filesize

    8KB

    Download

  • memory/892-57-0x0000000000400000-0x0000000000636000-memory.dmp

    Filesize

    2.2MB

    Download

  • memory/1088-60-0x0000000000000000-mapping.dmp

    Download

  • memory/1892-69-0x0000000000400000-0x0000000000636000-memory.dmp

    Filesize

    2.2MB

    Download

  • memory/1972-59-0x0000000000000000-mapping.dmp

    Download