General
- Target app-release.apk
- Size 3.5MB
- Sample240701-182ejaxcjm
- SHA256 2a9287911eea92821cdf5cbe945605ce2f654308c48fe213d271cfabb7f528c0
- MD5 b023ee162270c73767beb40e0c13d1b9
- SHA1 09fe475b1125397c8920b28e711314426c894480
- SHA512 268235c93ba2b752d8c5deef197e75dfd2b91a22c748ef99bfc0eefdeeba6c74a0c37b8ff6c62055d63f4875578b896365f4305f6bab716a666f5c951a6f7e87
- SSDEEP 49152:WDQ5V+cnNAeN53Nfzq0e8HWXx7F9S+BLnynNRvY6VyLT9xx5t/gcQTronoSdWxtg:eIV7n5Jz/eVB7r0NR30LT9Bti4AckFo
- MD5 SHA1 SHA512 SSDEEP
Static task
static1
Behavioral task
behavioral1
Sample
app-release.apk
Resource
win11-20240508-en
Malware Config
Extracted
-
C:\Users\Admin\Desktop\files\@[email protected]
-
wannacry
- 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. �
-
13AM4VW2dhxYgXeQepoHkHSQuy6NgaEb94
Targets
-
- Target app-release.apk
- Size 3.5MB
- SHA256 2a9287911eea92821cdf5cbe945605ce2f654308c48fe213d271cfabb7f528c0
- MD5 b023ee162270c73767beb40e0c13d1b9
- SHA1 09fe475b1125397c8920b28e711314426c894480
- SHA512 268235c93ba2b752d8c5deef197e75dfd2b91a22c748ef99bfc0eefdeeba6c74a0c37b8ff6c62055d63f4875578b896365f4305f6bab716a666f5c951a6f7e87
- SSDEEP 49152:WDQ5V+cnNAeN53Nfzq0e8HWXx7F9S+BLnynNRvY6VyLT9xx5t/gcQTronoSdWxtg:eIV7n5Jz/eVB7r0NR30LT9Bti4AckFo
- MD5 SHA1 SHA512 SSDEEP
Modifies WinLogon for persistence
Deletes shadow copies
Ransomware often targets backup files to inhibit system recovery.
Downloads MZ/PE file
Drops file in Drivers directory
Modifies RDP port number used by Windows
Sets service image path in registry
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
Drops startup file
Event Triggered Execution: Component Object Model Hijacking
Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.
Executes dropped EXE
Impair Defenses: Safe Mode Boot
Loads dropped DLL
Modifies file permissions
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.
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
File and Directory Permissions Modification: Windows File and Directory Permissions Modification
Legitimate hosting services abused for malware hosting/C2
Drops file in System32 directory
Sets desktop wallpaper using registry
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
1Component Object Model Hijacking
1Privilege Escalation
Boot or Logon Autostart Execution
3Registry Run Keys / Startup Folder
2Winlogon Helper DLL
1Event Triggered Execution
1Component Object Model Hijacking
1Defense Evasion
File and Directory Permissions Modification
2Windows File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
1Safe Mode Boot
1Indicator Removal
1File Deletion
1Modify Registry
7Subvert Trust Controls
1Install Root Certificate
1