Resubmissions

04-02-2025 00:25

250204-aq1r6sylfx 7

03-02-2025 11:18

250203-neq1gs1pdj 10

03-02-2025 11:18

250203-nedp6a1pcl 3

03-02-2025 11:08

250203-m8k6nayrdx 8

03-02-2025 11:05

250203-m6x3fa1mfr 8

03-02-2025 11:01

250203-m4qkksyqfx 8

General

  • Target

    OperaGXSetup.exe

  • Size

    3.8MB

  • Sample

    250203-neq1gs1pdj

  • MD5

    5b8cb1947781b81771c8ccce8c2acf9c

  • SHA1

    dac0a7b542a624c851bb182af26ad4540f9b3662

  • SHA256

    26bb11eda4879dfcec579835c2e2a4240bd115415919d9934199be2d442bfc58

  • SHA512

    70ace2d4fd39fa3923cca59f80a085025ad5c5477d873beef61036ee9590ac77a2a670d23cd149691b194e2b20f96661af8dd5d795a61bf9cfe31ff0c65d43c8

  • SSDEEP

    98304:IA5YT8y844FnN4ChLeQEGfleiLdAXmjTjiMI:4T8y/IrBr5f3LU2ml

Malware Config

Extracted

Path

C:\Users\Admin\Downloads\!Please Read Me!.txt

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: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �
Wallets

15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1

Extracted

Family

modiloader

C2

https://drive.google.com/u/0/uc?id=1TcSctGVBajYMA7CFDc158wpvqkpxmkhJ&export=download

Targets

    • Target

      OperaGXSetup.exe

    • Size

      3.8MB

    • MD5

      5b8cb1947781b81771c8ccce8c2acf9c

    • SHA1

      dac0a7b542a624c851bb182af26ad4540f9b3662

    • SHA256

      26bb11eda4879dfcec579835c2e2a4240bd115415919d9934199be2d442bfc58

    • SHA512

      70ace2d4fd39fa3923cca59f80a085025ad5c5477d873beef61036ee9590ac77a2a670d23cd149691b194e2b20f96661af8dd5d795a61bf9cfe31ff0c65d43c8

    • SSDEEP

      98304:IA5YT8y844FnN4ChLeQEGfleiLdAXmjTjiMI:4T8y/IrBr5f3LU2ml

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Azorult family

    • Floxif family

    • Floxif, Floodfix

      Floxif aka FloodFix is a file-changing trojan and backdoor written in C++.

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Modifies Windows Defender Real-time Protection settings

    • Modifies visiblity of hidden/system files in Explorer

    • Modiloader family

    • RMS

      Remote Manipulator System (RMS) is a remote access tool developed by Russian organization TektonIT.

    • Rms family

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Wannacry family

    • Windows security bypass

    • Deletes shadow copies

      Ransomware often targets backup files to inhibit system recovery.

    • Detects Floxif payload

    • Grants admin privileges

      Uses net.exe to modify the user's privileges.

    • ModiLoader First Stage

    • Remote Service Session Hijacking: RDP Hijacking

      Adversaries may hijack a legitimate user's remote desktop session to move laterally within an environment.

    • Blocks application from running via registry modification

      Adds application to list of disallowed applications.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Server Software Component: Terminal Services DLL

    • Sets file to hidden

      Modifies file attributes to stop it showing in Explorer etc.

    • Stops running service(s)

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

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

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Modifies WinLogon

    • Password Policy Discovery

      Attempt to access detailed information about the password policy used within an enterprise network.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Drops file in System32 directory

    • Hide Artifacts: Hidden Users

    • Sets desktop wallpaper using registry

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks