Overview

overview

10

Static

static

3

fix.exe

windows7-x64

10

fix.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    fix.exe

  • Size

    578KB

  • Sample

    250325-vj2fcay1by

  • MD5

    fe1bbd253c6e02e7a95d825d91a0c544

  • SHA1

    dd1176fb78bae40fdfd2d33bb1c11ea30e15735e

  • SHA256

    53acd0c786ccca6160ab4b9402b53c82612d988505348f1946376c6404efbc49

  • SHA512

    e451f5df1c7868037e265263b4e8d69609018f7ac26877b5a87cffaaf00635d6639aa253de4a4e3b50f8750d751cc57e1b1fafd06077ed1ea696ef0852195df7

  • SSDEEP

    12288:/mquC3hOcjcHU8wr3azBzS+gGJM3tBSEpfV/UbFw2WGVG+:/mEoDJMLpfVq3VG

Score
10/10
wannacryxwormdefense_evasiondiscoveryexecutionimpactpersistenceprivilege_escalationransomwareratspywarestealertrojanworm

Malware Config

Extracted

Family

xworm

C2

php-saver.gl.at.ply.gg:7031

Attributes
  • Install_directory

    %Userprofile%

  • install_file

    svchost.exe

Extracted

Path

C:\Users\Admin\AppData\Local\Temp\@[email protected]

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions, we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94 Next, please find an application file named "@[email protected]". It is the decrypt software. Run and follow the instructions! (You may need to disable your antivirus for a while.) Q: How can I trust? A: Don't worry about decryption. We will decrypt your files surely because nobody will trust us if we cheat users. * If you need our assistance, send a message by clicking <Contact Us> on the decryptor window. �
Wallets

13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94

Targets

    • Target

      fix.exe

    • Size

      578KB

    • MD5

      fe1bbd253c6e02e7a95d825d91a0c544

    • SHA1

      dd1176fb78bae40fdfd2d33bb1c11ea30e15735e

    • SHA256

      53acd0c786ccca6160ab4b9402b53c82612d988505348f1946376c6404efbc49

    • SHA512

      e451f5df1c7868037e265263b4e8d69609018f7ac26877b5a87cffaaf00635d6639aa253de4a4e3b50f8750d751cc57e1b1fafd06077ed1ea696ef0852195df7

    • SSDEEP

      12288:/mquC3hOcjcHU8wr3azBzS+gGJM3tBSEpfV/UbFw2WGVG+:/mEoDJMLpfVq3VG

    Score
    10/10
    wannacryxwormdiscoveryexecutionpersistenceransomwarerattrojanwormdefense_evasionimpactprivilege_escalationspywarestealer

    • Detect Xworm Payload

    • Modifies WinLogon for persistence

      persistence

    • Wannacry

      WannaCry is a ransomware cryptoworm.

      ransomwarewormwannacry

    • Wannacry family

      wannacry

    • Xworm

      Xworm is a remote access trojan written in C#.

      trojanratxworm

    • Xworm family

      xworm

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

      ransomwaredefense_evasionimpactexecution

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

      execution

    • Event Triggered Execution: AppInit DLLs

      Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.

      persistenceprivilege_escalation

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

      discovery

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • Adds Run key to start application

      persistence

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

      defense_evasion

    • Sets desktop wallpaper using registry

      ransomware

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Windows Management Instrumentation

1
T1047

Persistence

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

2
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Winlogon Helper DLL

1
T1547.004

Event Triggered Execution

1
T1546

AppInit DLLs

1
T1546.010

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Defense Evasion

File and Directory Permissions Modification

2
T1222

Windows File and Directory Permissions Modification

1
T1222.001

Hide Artifacts

1
T1564

Hidden Files and Directories

1
T1564.001

Indicator Removal

1
T1070

File Deletion

1
T1070.004

Modify Registry

3
T1112

Credential Access

Credentials from Password Stores

1
T1555

Credentials from Web Browsers

1
T1555.003

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Defacement

1
T1491

Inhibit System Recovery

1
T1490

Tasks