General

  • Target

    Solara.exe

  • Size

    796KB

  • Sample

    241010-k2swtayaqm

  • MD5

    e91f3ec430934cf29cda88d9b730d893

  • SHA1

    6453d1f200f568b7964861c683a4f519431a9468

  • SHA256

    4960838a390adf1ea412850ca14f15ce7c201fa967c0089df97742ee517ed0fe

  • SHA512

    cc6afc8a20943ef7d18aaddde9f9257dbd7d0913aeb5ef66734cd593e580ecddde7a0706e4415c202655536b0665ce81116fd5ed487d3311caa10b33fbb7406b

  • SSDEEP

    12288:wyveQB/fTHIGaPkKEYzURNAwbAg/KyEbx/j76eLaOfqPCm+3KP8ps1uZ:wuDXTIGaPhEYzUzA0kyE1jue+AvUG

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:1764

cash-hispanic.gl.at.ply.gg:1764

Attributes
  • Install_directory

    %AppData%

  • install_file

    explorer.exe

  • telegram

    https://api.telegram.org/bot8013268995:AAHt5-BJsAIEM9hnoTy17y1WYC4NnCMU398/sendMessage?chat_id=5405936031

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: 115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn 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

115p7UMMngoj1pMvkpHijcRdfJNXj6LrLn

Targets

    • Target

      Solara.exe

    • Size

      796KB

    • MD5

      e91f3ec430934cf29cda88d9b730d893

    • SHA1

      6453d1f200f568b7964861c683a4f519431a9468

    • SHA256

      4960838a390adf1ea412850ca14f15ce7c201fa967c0089df97742ee517ed0fe

    • SHA512

      cc6afc8a20943ef7d18aaddde9f9257dbd7d0913aeb5ef66734cd593e580ecddde7a0706e4415c202655536b0665ce81116fd5ed487d3311caa10b33fbb7406b

    • SSDEEP

      12288:wyveQB/fTHIGaPkKEYzURNAwbAg/KyEbx/j76eLaOfqPCm+3KP8ps1uZ:wuDXTIGaPhEYzUzA0kyE1jue+AvUG

    • Detect Xworm Payload

    • UAC bypass

    • Wannacry

      WannaCry is a ransomware cryptoworm.

    • Windows security bypass

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Boot or Logon Autostart Execution: Active Setup

      Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    • Command and Scripting Interpreter: PowerShell

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

    • Downloads MZ/PE file

    • Event Triggered Execution: Image File Execution Options Injection

    • 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

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Adds Run key to start application

    • Checks whether UAC is enabled

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

    • Legitimate hosting services abused for malware hosting/C2

    • Sets desktop wallpaper using registry

MITRE ATT&CK Enterprise v15

Tasks